WBBSE Class 10 Life Science Chapter 1 Control And Co-Ordination In Living Organisms MCQS

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Chapter 1 Control And Co-Ordination In Living Organisms MCQs

Question 1. When the intensity of the stimulus is the cause of movement, it is termed as_________________

  1. Tropism
  2. Tactism
  3.  Nastism
  4. None of the above

Answer. (3) Nastism

Question 2. Earthworm moves with the help of_______________

  1.  Setae
  2. Pseudopodia
  3. Tube feet
  4. Cilia

Answer. (1) Setae

Question 3. Balancing organ of fish are_______________

  1. Lateral line
  2. Swim bladder
  3. Gills
  4. Fins

Answer. (2) Swim bladder

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Question 4. The locomotory organ of amoeba are______________

  1. Setae
  2. Pseudopodia
  3. Tube feet
  4. Cilia

Answer. (2) Pseudopodia

Question 5. Tactic movement is found in________________

  1. Chlamydomonas
  2. Earthworm
  3. Cockroach
  4.  Fish

Answer. (1) Chlamydomonas

WBBSE For Class 10 Life Science And Environment Chapter 1 Control And Co-Ordination In Living Organisms MCQS

Question 6. of stimulus is the cause of tropic movement.

  1. Intensity
  2. Source
  3. Direction
  4. None of the above

Answer. (c) Direction

Question 7. Locomotion in plants is termed as_________________

  1. Tropism
  2. Tactism
  3. Nastism
  4. None of the above

Answer. (2) Tactism

Question 8. What is the other name of thigmotropism?

  1. Phototropism
  2. Heliotropism
  3. Hydrotropism
  4. Haptotropism

Answer. (4) Hapto tropism

Question 9. Number of joints in our body are________________

  1. Twenty four
  2. Twenty three
  3. Twenty one
  4. Twenty two

Answer. (4) Twenty two

Question 10. Movable joints allow

  1. Free movement in various directions
  2. No movement
  3. A limited degree of movement
  4. None of the above

Answer. (1) Free movement in various directions

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Question 11. Ball and socket joint is__________________

  1. Slightly movable joint
  2. Immovable joint
  3. Movable joint
  4. None of the above

Answer. (3) Movable joint

Question 12. Pivot joint allows

  1. Rotation only
  2. Movement in one direction only
  3. The sliding of bones
  4. Limited degree of movement

Answer. (1) Rotation only

Question 13. The movement of an organ in response to the stimulus of moisture is known as:

  1. Geotropism
  2. Phototropism
  3.  Hydrotropism
  4. Haptotropism

Answer. (4) Hydrotropism

Question 14. The orientation of stems and roots in response to the force of gravity is called:

  1. Chemotropism
  2. Geotropism
  3. Hydrotropism
  4. Thigmotropism

Answer. (2) Geotropism

Question 15. The locomotory organs of hydra are :

  1. Setae
  2. Cilia
  3. Flagella
  4. Basal disc, foot & tentacles

Answer. (4) Basal disc, foot & tentacles

Question 16. Schwann cell is related to which of the following?

  1. Dendrite
  2. Axo
  3. Cell body
  4. Synapse

Answer. (2) Axon

Question 17. “Titillation brings about the contraction of the foot” – What kind of reflex action is it?

  1. Habitual reflex action
  2. Congenital superficial reflex action
  3. Complex reflex action
  4. Congenital deep reflex action.

Answer. (2) Congenital superficial reflex action

Question 18. Which of the following is not present in a neuron?

  1. Schawann cell
  2. Plastid
  3. Nissl’s granule
  4. Node of Ranvier.

Answer. (2) Plastid

Question 19. Which of the following co-ordinates the balance of the body during locomotion?

  1. Cerebrum
  2.  Cerebellum
  3. Pons
  4. Medulla oblongata.

Answer. (2) Cerebellum

Question 20. The optic nerve is a _________

  1. Motor nerve
  2.  Spinal nerve
  3.  Mixed nerve
  4. Sensory nerve

Answer. (4) Sensory nerve.

Question 21. How many pairs of cranial nerves are present in the human body?

  1. 10
  2. 12
  3. 14
  4. None of these.

Answer. (2) 12

Question 22. Two hemispheres of cerebrum remain connected by_________________

  1. Corpus striatum
  2. Corpus luteum
  3. Corpus callosum
  4. Medulla.

Answer. (3) Corpus callosum

Question 23. The olfactory nerve helps in the sensation of___________.

  1. Vision
  2. Smell
  3. Hearing
  4. Taste.

Answer. (2) Smell

Question 24. The protective covering of the brain is____________.

  1. Pericardium
  2. Conjuctiva
  3. Pleura
  4. Meninges.

Answer. (4) Meninges.

Question 25. Which one is not a component of the Complex Reflex arc?

  1. Afferent neurone
  2. Efferent neurone
  3. Intermediate neurone
  4. Afferent nerve.

Answer. (4) Afferent nerve.

Question 26. Which one of the following is associated with the nasal body?

  1. Cell body
  2. Axon
  3. Schwann cell
  4. Neurilemma.

Answer. (1) Cell body

Question 27. The number of spinal nerves in man is_______________.

  1. 10 pairs
  2. 12 pairs
  3. 31 pairs
  4. 33 pairs

Answer. (3) 31 pairs

Question 28. The main component of the central nervous system is____________.

  1. Brain
  2. Spinal cord
  3. Both Brain and Spinal cord
  4. None of them.

Answer. (3) Both Brain and Spinal cord

Question 29. Which part of the brain performs thermoregulation?

  1. Cerebrum
  2. Cerebellum
  3. Hypothalamus
  4. Pons

Answer. (3) Hypothalamus

Question 30. The region of the human brain that regulates “body balance” is___________

  1. Cerebrum
  2. Cerebellum
  3. Thalamus
  4. Hypothalamus

Answer. (2) Cerebellum

Question 31. In the eye of which animal pecten is found?

  1. Fish
  2. Tiger
  3. Pigeon
  4. Toad

Answer. (3) Pigeon

Question 32. The area of the eye for best vision is ___________

  1. Blindspot
  2. Yellow spot
  3. Optic disc
  4. Cornea.

Answer. (2) Yellow spot

Question 33. The point where the retina and the optic nerve meet is called.

  1. Yellow spot
  2. Optic centre
  3. Blindspot
  4. Eye spot

Answer. (3) Blindspot

Question 34. Hypermetropia is corrected by __________

  1. Convex lens
  2. Concave lens
  3. Cylindrical lens
  4. Photochromatic lens

Answer. (1) Convex lens

Question 35. The shape of lens present in human eye is____________

  1. Concave
  2.  Convex
  3. Biconvex
  4.  Biconcave

Answer. (d) Biconvex.

Question 36. The part of the human eyeball that is photosensitive is__________

  1. Choroid
  2. Sclera
  3. Cornea
  4. Retina.

Answer. (4) Retina.

Question 37. The oval window is found in_______________

  1. Ear
  2. Heart
  3. Brain
  4. Eye

Answer. (2) Ear

Question 38. Rhodopsin is the pigment of_______________

  1. Rod cells
  2. Cone cells
  3. Epithelial cells
  4. Olfactory cells.

Answer. (1) Rod cells

Question 39. Where is the sclera located?

  1. Tongue
  2. Skin
  3. Eye
  4. Ear

Answer. (3) Eye

Question 40. The part of the human eye that functions as a refraction medium is___________

  1. Cornea
  2. Retina
  3. Vitreous humor
  4. Choroid.

Answer. (3) Vitreous humor

Question 41. What is Auxin?

  1. Animal Hormone
  2. Enzyme
  3. Plant Hormone
  4. Excretory Product

Answer. (3) Plant Hormone

Question 42. Which one of the following is a hormone?

  1. Pepsin
  2. Reserpine
  3. Ethylene
  4. Cytosine.

Answer. (3) Ethylene

Question 43. What is Gibberelline?

  1. Animal hormone
  2.  Enzyme
  3. Plant hormone
  4. Excretory product

Answer. (3) Plant hormone

Question 44. The hormone which is not a phytohormone is____________

  1. STH
  2.  IAA
  3. GA.
  4. None of the above

Answer. (1) STH

Question 45. The type of movement of plants influenced by auxin is____________

  1. Nyctinasty
  2. Photonasty
  3. Phototropism
  4. Hydrotropism

Answer. (3) Phototropism

Question 46. Hormones are also called_________

  1. Enzymes
  2. Receptor
  3. Physical co-ordinators
  4. Chemical co-ordinators

Answer. (4) chemical co-ordinators

Question 47. An artificial hormone is __________________

  1. Indole acetic acid
  2. Naphthalene acetic acid
  3. Gibberellic acid
  4. Ziatin

Answer. (2) Naphthalene acetic acid

Question 48. Insulin is secreted from___________.

  1. Anterior part of Pituitary gland
  2. Thyroid gland
  3.  Kidney
  4. Pancreas

Answer. (4) Pancreas

Question 49. Which of the following glands is a mixed gland?

  1. Thyroid
  2. Pituitary
  3. Pancreas
  4. Liver.

Answer. (3) Pancreas

Question 50. Which one of the following is not an endocrine gland?

  1. Salivary gland
  2. Adrenal gland
  3. Thyroid gland
  4. Pituitary gland.

Answer. (1) Salivary gland

Question 51. From which of the following endocrine glands is ACTH secreted?

  1. Adrenal gland
  2. Thyroid gland
  3. Islets of Langerhans in pancreas
  4. Pituitary gland.

Answer. (4) Pituitary gland.

Question 52. Which one of the following is an endocrine gland?

  1. Salivary gland
  2. Liver
  3. Tear gland
  4. Thyroid gland.

Answer. (4) Thyroid gland.

Question 53. From which of the following glands is Insulin secreted?

  1. Thyroid gland
  2. Pituitary gland
  3.  Islets of langerhans
  4. Adrenal gland.

Answer. (3) Islets of langerhans

Question 54. Disease caused by deficiency of Thyroxine is________________

  1. Anaemia
  2. Cretinism
  3. Diabetes
  4. Polyurea.

Answer. (2) Cretinism

Question 55. Which one is an emergency hormone?

  1. STH
  2. Thyroxine
  3. Adrenaline
  4. Insulin.

Answer. (3) Adrenaline

Question 56. In the absence of which of the following there is an increase in blood sugar level?

  1. Thyroxine
  2. Insulin
  3. Glucagon
  4. Adrenaline.

Answer. (2) Insulin

Question 57. From which of the following glands is thyroxine secreted?

  1. Thyroid gland
  2. Pituitary gland
  3. Adrenal gland
  4. Islets of langerhans.

Answer. (1) Thyroid gland

Question 58. Iodine is the essential component for the hormone____________

  1.  Insulin
  2. Glucagon
  3. Adrenaline
  4.  Thyroxine.

Answer. (4) Thyroxine.

Question 59. From which of the following endocrine glands is a somatotrophic hormone secreted?

  1. Adrenal gland
  2. Pancreas
  3. Pituitary gland
  4. Thyroid gland.

Answer. (3) Pituitary gland

Question 60. Which of the following hormones is secreted from the pituitary gland?

  1. Thyroxine
  2. Insulin
  3. Adrenaline
  4.  STH

Answer. (4) STH

Question 61. The hormone Testosterone is secreted from____________

  1. Testis
  2. Ovary
  3. Adrenal gland
  4. Thyroid gland.

Answer. (1) Testis

Question 62. Which one is a mixed type among the following glands?

  1. Thyroid
  2. Pituitary
  3. Pancreas
  4. Adrenal

Answer. (3) Pancreas

Question 63. The name of a hormone secreted from the ovary is______________.

  1. Oestrogen
  2. Testosterone
  3. GTH
  4. ACTH

Answer. (1) Oestrogen

Question 64. Which one is not an endocrine gland?

  1. Salivary gland
  2. Pituitary gland
  3. Thyroid gland
  4. Adrenal gland.

Answer. (1) Salivary gland

Question 65 The endocrine glands do not secrete____________.

  1. Insulin
  2. Thyroxine
  3. Pepsin
  4. Adrenalin

Answer. (3) Pepsin

Question 66. Which of the following hormones control physical, mental, and sexual growth in man?

  1. S.T.H
  2. GT.H
  3. T.S.H.
  4. Thyroxine

Answer. (4) Thyroxine

Question 67. Emergency hormone is secreted from________

  1. Pituitary
  2. Thyroid
  3. Adrenal
  4. Pancreas gland.

Answer. (3) Adrenal.

Question 68. Hypofunctioning of S.T.H. leads to_______

  1. Dwarfism
  2. Cretinism
  3. Goitre
  4. Diabetes mellitus.

Answer. (1) dwarfism.

Question 69. Which one of the following hormones participates in the metamorphosis of a toad?

  1. Auxin
  2. GT.H
  3. Adrenalin
  4. Thyroxine.

Answer. (4) Thyroxine.

Question 70. Which one of the following hormones is secreted from the ovary?

  1. Insulin
  2. Testosterone
  3. Oestrogen
  4. GTH

Answer. (4) Oestrogen

Question 71. Which one is not an endocrine gland?

  1. Salivary gland
  2. Pituitary gland
  3. Thyroid gland
  4. Adrenal gland

Answer. (1) Salivary gland

Question 72. Deficiency of which hormone causes Diabetes mellitus?

  1. Thyroxin
  2. Insulin
  3. Adrenalin
  4. STH.

Answer. (2) Insulin

Question 73. Which of the following endocrine glands secrete thyroxine?

  1. Thyroid
  2. Testes
  3. Adrenal
  4. Pituitary

Answer. (1) Thyroid

Question 74. Who discovered the sensitivity of plants?

  1. Parlor
  2. J.C. Bose
  3. Darwin
  4. Went

Answer. (2) J.C. Bose

Question 75. Which type of movement shows in Volvox?

  1. Phototropic
  2. Thermotropic
  3. Phototactic
  4. Gsotropic

Answer. (3) Phototactic

Question 76. Chemonastic movement is found in___________

  1. Drosera
  2. Sunflower
  3. Oxalis
  4. Mimosa Pudica

Answer. (1) Drosera

Question 77. Seed germination is induced by which hormone?

  1. Gibberellic acid
  2. Auxin
  3. Cytokinin
  4.  ABA

Answer. (1) Gibberellic acid

Question 78. Which hormone delays leaf senescence?

  1. Auxin
  2. Gibberellin
  3. Cytokinin
  4. IAA

Answer. (4) Cytokinin

Question 79. The surface area of wings is increased in birds with the help of_____________.

  1. Pectoralis major
  2. Pectoralis minor
  3. Remiges
  4. Rectrices

Answer. (3) Remiges

Question 80. Triceps helps in______.

  1. Flexion
  2. Abduction
  3. Adduction
  4. Extension

Answer. (4) Extension

Question 81. Klinostat demonstrates____________.

  1. Geotropism
  2. Hydrotropism
  3. Thigmotropism
  4. Phoxotropism

Answer. (1) Geotropism

Question 82. Avena coleoptile test is for___________.

  1. Auxin
  2. Gibberellin
  3. Cytokinin
  4. Ethylene

Answer. (1) Auxin

Question 83. Stress is reduced by____________

  1. ADH
  2. Adrenaline
  3. Renin
  4. STH

Answer. (2) Adrenaline

Question 84. TRH is produced from_____________.

  1. Hypothalamus
  2. Adrenal
  3.  Pituitary
  4. Thyroid

Answer. (1) Hypothalamus

Question 85. Milk releasing hormone is_____________.

  1. Oxytocin
  2. Vasopresin
  3. TnRH
  4. TSH

Answer. (1) Oxytocin

Question 86. The following is a motor nerve_________________

  1. Facial
  2. Oculomotor
  3. Optic
  4. Trigeminal

Answer. (2) Oculomotor

Question 87. The part of the brain that joins it with the spinal cord is_____________.

  1. Medulla
  2. Pons
  3. Hypothalamus
  4. Cerebellum

Answer. (1) Medulla

Question 88. Synovial joints are______________

  1.  Immovable
  2. Freely movable
  3. Slightly movable
  4. Fixed

Answer. (2) Freely movable

Question 89. Retrices in bird are located in___________

  1. Tail feather
  2. Wing
  3. Sternum
  4. Legs

Answer. (1) Tail feather

Question 90. The Semicircular canals are located in______

  1. Eye
  2. Ear
  3. Nose
  4. Tongue

Answer. (2) Ear

Question 91. Adduction and abduction is a common phenomenon found in____________

  1. Leg
  2.  Arm
  3. Shoulder
  4. Both arm and shoulder

Answer. (4) Both arm and shoulder

Question 92. Stimulus is______________________

  1. A physical force
  2. Energy
  3. Changed environment
  4. None of these

Answer. (2) Energy

Question 93. Irritability is________________

  1. Respond to stimulus
  2. Non-respond to stimulus
  3. Changes within body
  4. None of these

Answer. (1) Respond to stimulus

Question 94. FSH is secreted from_______________

  1. Thyroid gland
  2. Adrenal gland
  3. Pituitary gland
  4. Graafian follicles

Answer. (4) Graafian follicles

Question 95. Who is called the father of endocrinology?

  1. E.H. Starling
  2. Thomas Addison
  3. Huxley
  4. Peterson

Answer. (2) Thomas Addison

Question 96. The gland having both exocrine am3 endocrine functions is____________

  1. Thyroid
  2. Gastric
  3. Pancreas
  4. Pituitary

Answer. (3) Pancreas

Question 97. Another name for antidiuretic hormone is ____________

  1. Oxytocin
  2. Prolactin
  3. Vasopressin
  4. None of these

Answer. (3) Vasopressin

Question 98. Which one of the following is not an endocrine gland?

  1. Thyroid
  2. Pituitary
  3. Adrenal
  4. Parotid

Answer. (4) Parotid

Question 99. Gigantism is due to over-secretion of which one of the following?

  1. LH
  2. GH
  3. TSH
  4. ADH ‘

Answer. (4) GH (Growth Hormone)

Question 100. The anterior lobe of Pituitary is also called _____________

  1. Pars nervosa
  2. Pars distalis
  3. Pars intermedia
  4. None of these

Answer. (2) Pars distalis

Question 101. The reabsorption of water by kidney tubules is stimulated by_______________

  1. Oxytocin
  2. Androgen
  3.  Protection
  4. Vasopressin

Answer. (4) Vasopressin

Question 102. The smallest endocrine gland is______________

  1. Thyroid
  2.  Parathyroid
  3. Adrenal
  4. Pituitary gland

Answer. (4) Pituitary gland

Question 103. The largest endocrine gland in adult is___________

  1. Thyroid gland
  2. Pituitary
  3. Adrenal
  4. Ovary

Answer. (1) Thyroid gland

Question 104. The secretion of endocrine gland is directly released in________________

  1. Blood
  2. Gut
  3. Lymph
  4. Ducts

Answer. (1) Blood

Question 105. The pituitary gland in mammals is made up of____________

  1. Two parts
  2. Three parts
  3. Six parts
  4. One part only

Answer. (2) Three parts

Question 106. Which one of the following is not an endocrine disease?

  1. Goitre
  2. Pneumonia
  3. Cretenism
  4. Dwarfism

Answer. (2) Pneumonia

Question 107. Deficiency of thyroid hormone causes ________________

  1.  Exophthalmic goitre
  2. Acromegaly
  3. Myxoedema
  4. All of three

Answer. (3) Myxoedema

Question 108. The hormone that regulates basal metabolism in the body is secreted from_____________

  1. Pituitary
  2. Thyroid gland
  3. Pancreas
  4. Parathyroid

Answer. (2) Thyroid gland

Question 109. The function of the thymus gland is _____________

  1. Immunity
  2. Growth
  3. Formation of RBC
  4. Fight or flight

Answer. (1) Immunity

Question 110. Kidney stones may be caused by hypersecretion of the ________________

  1. Thyroid gland
  2. Parathyroid gland
  3. Thymus
  4. Pancreas

Answer. (2) Parathyroid gland

Question 111. Hormones are destroyed mainly in______________

  1. Liver
  2. Heart
  3. Stomach
  4. Intestine

Answer. (1) Liver

Question 112. The glucagon hormone in pancreas is secreted by________________

  1. Gamma cells
  2. Alpha cells
  3. Delta cells
  4. Beta cells

Answer. (2) Alpha cells

Question 113. Which of the following has a higher level in summer and a lower level in winter?

  1. Thyroxine
  2.  Insulin
  3. Glucagon
  4.  Vasopressin

Answer. (4) Vasopressin

Question 114. Which of the following induces parturition?

  1. Vasopressin
  2. Oxytocin
  3. GH
  4. TSH

Answer. (2) Oxytocin

Question 115. Islets of langerhans are found in _________________

  1. Anterior pituitary
  2. Kidney Cortex
  3. Spleen
  4. Endocrine pancreas

Answer. (4) Endocrine pancreas

Question 116. The hormone responsible for fight and flight response is______________

  1. Adrenalin
  2. Thyroxine
  3. ADH
  4. Oxytocin

Answer. (1) Adrenalin

Question 117. Which gastrointestinal hormone stimulates insulin secretion?

  1. Gastrin
  2. CCK
  3. Secretion
  4. GIP

Answer. (4) GIP

Question 118. During an emergency, which of the following hormones is secreted?

  1. Aldosterone
  2. Thyroxine
  3. Adrenalin
  4. Calcitonin

Answer. (3) Adrenalin

Question 119. When the animal is aggressive and attacks, the hormone responsible for it is_________________

  1. Thyroxin
  2.  Testosterone
  3. Oxytocin
  4. Adrenalin

Answer. (d) Adrenalin

Question 120. The hormone produced in allergic reaction is _____________

  1. Gluco corticoides
  2. Mineralo corticoides
  3. Nor epinephrine
  4. Epinephrine

Answer. (1) Gluco corticoids

Question 121. Which is the gastrointestinal hormone?

  1. Prolactin
  2. Enterokinase
  3. Nor – epinephrin
  4.  Secretin

Answer. (4) Secretin

Question 122. In plants, auxin synthesis occurs in _________________

  1. Cortex
  2. Xylem cells
  3. Phloem cells
  4. Root and shoot tips

Answer. (4) Root and shoot tips

Question 123. A substance that induces dormancy of seed is _____________

  1. ABA
  2. GA
  3. Urea
  4. Cytokenin

Answer. (1) ABA

Question 124. Cytokinin can cause _____________

  1. Early senescence in leaves
  2. Delay in leaf senescence
  3. Elongation of internodes
  4. Parthenocarpy

Answer. (2) Delay in leaf senescence

Question 125. Promoting cell division in plants is the characteristic of___________

  1. Abscisic acid
  2. Ethylene
  3. IAA
  4. Cytokinin

Answer. (4) Cytokinin

Question 126. The term cytokinin was introduced by________________

  1. Miller and Skoog
  2. Letham
  3. Steward
  4. None of these

Answer. (4) None of these

Question 127. Auxin were first isolated from the plants by______________

  1. Went
  2.  Boysen – Jensen
  3. Darwin
  4. Sachs

Answer. (1) Went

Question 128. Gibberellins in pure crystallin a form were first isolated_____________

  1. By Kurosawa
  2. From rice plants in Japan
  3.  By Yabuta and Sumiki
  4. Both 2 and 3

Answer. (3) By Yabuta and Sumiki

Question 129. The formation of pseudopodia results in ___________________

  1. Ciliary movement
  2. Amoeboid movement
  3.  Flagellar movement
  4. Muscular movement

Answer. (2) Amoeboid movement

Question 130. The function of synovial fluid is___________

  1. Avoid friction
  2.  Lubrication
  3. Nourishment
  4. All of these

Answer. (4) All of these

Question 131. The connective tissue joining muscle to bone is________________

  1. Ligament
  2. Tendons
  3. Synovial fluid
  4.  None of these

Answer. (2) Tendons

Question 132. Animals which can not exhibit locomotion are___________

  1. Corals
  2.  Sponges
  3. Amoeba
  4. Both (1) and (2)

Answer. (4) Both (1) and (2)

Question 133. plant can exhibit locomotion_______________

  1. Chlamydomonas
  2. Spirogyra
  3. Volvox
  4. Both (1) and (3)

Answer. (4) Both (1) and (3)

Question 134. Earthworm shows locomotion by______

  1. Scales
  2. Muscles
  3. Setae and muscles
  4. Pseudopodia

Answer. (3) Setae and muscles

Question 135. Which one shows bipedal locomotion?

  1. Toad
  2. Cockroach
  3. Man
  4. Lizard

Answer. (3) Man

Question 136. The streaming movement of protoplasm within a cell is ________________

  1. Diffusion
  2. Osmosis
  3. Cyclosis
  4.  All

Answer. (3) Cyclosis

Question 137. Fin which helps the fish to steer the direction is______________

  1.  Pectoral fin
  2.  Pelvic fin
  3. Caudal fin
  4. Dorsal fin

Answer. (3) Caudal fin

Question 138. The type of movement in Mimosa pudica is _____________

  1. Nyctinasty
  2. Photonasty
  3. Seismonasty
  4. Chemonasty

Answer. (3) Seismonasty

Question 139. The tropic movement in plants is controlled by________________

  1. Gibberellins
  2. Auxin
  3. Cytokinin
  4. Ethylene

Answer. (2) Auxin

Question 140. The other name of sleeping movement in plants is____________

  1.  Thermonasty
  2. Nyctinasty
  3. Chemonasty
  4. All

Answer. (2) Nyctinasty

Question 141. ‘V-shaped muscle in fishes is known as _____________

  1. Swim bladder
  2. Pectoral fin
  3. Myotome muscle
  4. None

Answer. (3) Myotome muscle

Question 142. Muscle present at the anterior side of upper arm is________________

  1. Triceps muscle
  2. Flexor muscle
  3. Biceps muscle
  4. All of these

Answer. (3) Biceps muscle

Question 143. Connective tissue joining bone to bone is___________________

  1. Tendon
  2. Ligament
  3. Cartilage
  4. None

Answer. (2) Ligament

Question 144. Movement of locomotion in plants induced by external stimulus is _____________

  1. Tactic movement
  2. Tropic movement
  3. Nastic movement
  4. Cyclosis

Answer. (1) Tactic movement

Question 145. The seismonastic movement is found in plants_____________

  1. Touch me not plant
  2. Mimosa pudica
  3. Lajwanti
  4. All of these

Answer. (4) All of these

Question 146. Centre of thirst and hunger is_________________

  1. Medulla oblongata
  2. Cerebellum
  3. Cerebrum
  4. Hypothalamus

Answer. (4) Hypothalamus

Question 147. Corpus callosum is seen in the________

  1. Pituitary
  2. Ovary
  3. Brain
  4. Thyroid

Answer. (3) Brain

Question 148. Cavities of the brain are called _____________

  1. Auricles
  2. Coelom
  3. Lumen
  4. Ventricles

Answer. (4) Ventricles

Question 149. In reflex action, the term ‘executive’ refers to_________

  1. Sensory neuron
  2. Motor neuron
  3. Association neuron
  4. Dorsal root ganglion

Answer. (2) Motor neuron

Question 150. A serious injury to medulla will cause_____________

  1. Death
  2. Paralysis
  3. Stroke
  4. None of these

Answer. (1) Death

Question 151. The average weight of the human brain is _________

  1. 1000 gms
  2. 1200 gms
  3. 1350 gms
  4. 1500 gms

Answer. (3) 1350 gms

Question 152. Point out which one is not a reflex action.

  1. Sneezing
  2. Yawning
  3. Coughing
  4. Weeping

Answer. (4) Weeping

Question 153. Conditioned reflex is related to_____________

  1. Sanger
  2. Haeckel
  3. Pavlov
  4. Flemming

Answer. (3) Pavlov

Question 154. Micturition Centre is_____________

  1. Medulla
  2. Cerebrum
  3. Cerebellum
  4. Pons

Answer. (2) Cerebrum

Question 155. In vertebrate neurotransmitter is_____________

  1. Acetylcholine
  2.  Sympathein
  3. Both (1) and (2)
  4. None

Answer. (3) Both (1) and (2)

Question 156. Acetylcholine is________

  1. Toxin
  2. Chemical transmitter
  3. Vitamin
  4. Enzyme

Answer. (2) Chemical transmitter

Question 157. The antiseptic property of tears is due to_________

  1. Nasozyme
  2. Septizyme
  3. Lysozyme
  4. All the three

Answer. (3) Lysozyme

Question 158. Fovea Centralis is also known as___________

  1. Red spot
  2. Yellow spot
  3. Green spot
  4. White spot

Answer. (2) Yellow spot

Question 159. The point on the retina where most clear image is formed is______________

  1. Area central
  2. Blindspot
  3. Fovea centralis
  4. Ora service

Answer. (3) Fovea centralis

Question 160. The vitreous humour :

  1. Keeps the lens in position
  2.  Supports retina
  3. Act as refractory medium
  4. All the three

Answer. (4) All the three

Question 161. The pigments found in the cone are _________

  1. Iodopsin
  2. Rhodopsin
  3. Erythrobabe
  4. None of these

Answer. (1) Iodopsin

Question 162. The organ of corti is found in____________

  1.  Internal ear
  2. External ear
  3. Eye
  4. Skin

Answer. (1) Internal ear

Question 163. The maculae are located in ____________

  1. Utriculus
  2. Sacculus
  3.  Both (1) and (2)
  4. Neither 1 nor 2

Answer. (3) Both (1) and (2)

Question 164. The number of ear ossicles in man is______________

  1. 1
  2. 2
  3. 3
  4. 4

Answer. (3) 3

Question 165. Alzheimer disease is characterised by______________

  1. Dementia
  2. Degeneration of brain
  3. Degeneration of vertebrae
  4.  Both (1) and (2)

Answer. (d) Both (a) and (b)

Question 166. Sense of smell is perceived by________________

  1. Pituitary
  2.  Hypothalamus
  3. Olfactory lobe
  4. Cerebrum

Answer. (3) Olfactory lobe

Question 167. Which one of the following does not act as a Neurotransmitter?

  1. Cortisone
  2. Acetylcholine
  3. Epinephrine
  4. Norepinephrine

Answer. (1) Cortisone

Life Science Class 10 West Bengal Board Chapter 1 Control And Co-Ordination In Living Organisms Fill In The Blanks

Question 1. Chemotropism is affected by___________substances.
Answer. Chemical

Question 2. Root is__________phototropic.
Answer. Negatively.

Question 3. During flight the tail of a bird works like a__________and at the time of sitting it acts as a__________organ.
Answer. Propeller, balancing.

Read and Learn More About WBBSE Solutions for Class 10 Life Science And Environment

Question 4. Locomotion by tail is found in_________cell and______
Answer. Sperm, fish.

Question 5. Prawn swims in water by___________
Answer. Swimming legs.

Question 6. Flagella helps in the movement of___________
Answer. Euglena.

Question 7. The__________is geotropic and the stem is__________
Answer. Root, phototropic.

You can download the class 10 WBBSS Life Science book pdf from wbbsesolutions.guide

Question 8. Somersault locomotion is found in__________
Answer. Hydra.

Question 9. In_____lower leaflets of the trifoliate leaf alternately move up and down due to changes in____________
Answer. Telegraph plant, turgor pressure

Question 10. The three-layered membranous covering of the human brain is collectively called___________
Answer. Meninges

Question 11. In plants nervous system is__________
Answer. Absent

Question 12. The tear gland is the secretory center of__________in eye.
Answer. Tear

Question 13. The place where optic nerve enters into the retina is___________
Answer. Blind spot

Question 14. The central nervous system consists of____________and spinal cord.
Answer. Brain

Question 15. Eye is called a___________ organ.
Answer. Sense of photo-receptor.

Question 16. Macula lutea is same as__________or_______ while scala media is the other name of___________
Answer. Yellow spot, fovea, the middle part of the cochlea.

Question 17.____________ is a gaseous animal hormone.
Answer. Pheromone

Question 18. Dwarfism is the cause of_____________failure.
Answer. Pituitary

Question 19. __________regulates the cell division in plants.
Answer. Kinin

Question 20. Direct action of the thyroid hormone is on the__________
Answer. Growth

Question 21. Islets of langerhans secrete______ and___________ hormones.
Answer. Glucagon, Insulin

Question 22. Pineal gland secretes__________
Ans. Melatonin

Question 23.___________ is a gaseous plant hormone.
Answer. Ethylene

Question 24.__________ hormone is responsible for fertilization.
Answer. Fertilizin

Question 25.___________ is a emergency hormone and is secreted from______
Answer. Adrenaline, Adrenal gland.

Question 26.__________ is a wound hormone of the plants.
Answer. Traumatic.

Question 27. The three-layered membranous covering of the human brain is collectively called ‘___________ ‘
Answer. Meninges.

Question 28. ___________of neuron conduct impulse from the previous neuron to the cell body.
Answer. Dendrite.

Question 29. The cavities inside the central nervous system are filled with a fluid called___________
Answer. Cerebro Spinal Fluid.

Question 30. The cerebrum is the_________part of the brain.
Answer. Largest

Question 31. The structural and functional unit of the nervous system is called______
Answer. Neuron.

Question 32. The part of the brain related to balancing is called___________
Answer. Cerebellum.

Question 33. The meeting place of two neurones is called__________
Answer. Synapse.

Question 34. The action that is controlled by the spinal cord is called_____action.
Answer. Reflex.

Question 35. The eyeball has____________layers of covering.
Answer. three.

Question 36. With the use of _______________lens, myopia can be corrected.
Answer. Concave.

Question 37. Rod and cone cells are located in___________
Answer. Retina.

Question 38. The semicircular canal is present in ___________
Answer. Internal ear.

Question 39.____________ plays an active role in cell division.
Answer. Auxin.

Question 40.______________ helps in seed germination by removing dormancy of seeds.
Answer. Gibberellin.

Question 41. Tropic movement is controlled by____________
Answer. Auxin.

Question 42. Three natural plant hormones are Auxin, Gibberellins and__________
Answer. Cytokinin.

Question 43. _________is the group name of plant hormones.
Answer. Phytohormone.

Question 44. Cytokinin stimulates mitotic cell division in the__________tissue.
Answer. Meristematic.

Question 45. Auxin hormone promotes__________ dominance in plant.
Answer. Apical.

Question 46.___________ hormone helps in the control of weeds.
Answer. Auxin.

Question 47.___________ retards senscence in plants.
Answer. Cytokinin.

Question 48. Due to deficiency of_______hormone Diabetes mellitus takes place in our body.
Answer. Insulin.

Question 49. Hyperfunctioning of STH causes______ in humans.
Answer. Acromegaly.

Question 50. The chemical messenger in an animal body is_______
Answer. Hormone.

Question 51. The hormonal system and nervous system are similar because both are systems of________
Answer. Co-ordination.

Question 52.________ is secreted by_________ cells of Islets of langerhans.
Answer. Insulin, Beta

Question 53. Chemical co-ordination is controlled by___________
Answer. Hormone.

Question 54. TSH stands for___________
Answer. Thyroid Stimulating Hormone.

Question 55. _____________is a mixed gland.
Answer. Pancreas.

Question 56. Hormones are present both in_______and__________
Answer. plant, animal.

Question 57. Hormones are secreted ___________from
Ans. Endocrine.

Question 58. Cretinism is caused by less secretion of__________
Answer. Thyroxine.

Question 59. The name of the hormone that is secreted from the anterior pituitary gland that regulates thyroxine secretion is known as____________
Answer. Thyroid Stimulating Hormone.

Question 60. The leader of endocrine orchestra is____________
Answer. Pituitary.

Question 61. The hormone that is secreted from the anterior pituitary and regulates the secretion of adrenal cortical hormone is__________
Answer. ACTH.

Question 62. The hormone secreted from the anterior pituitary gland which regulates the secretion of thyroxine is known as _____________________
Answer. Thyroid-stimulating hormone

Question 63. Locomotion is always affected by___________
Answer. Stimulus.

Question 64. In movement no___________of body takes place.
Answer. Displacement.

Question 65. Taxism is displacement of________body.
Answer. Whole.

Question 66. Tropism is a movement of curvature due to__________
Answer. Growth.

Question 67. Nastism is a movement of curvature due to___________
Answer. Turgor.

Question 68. The other name of thigmotropism is___________
Answer. Haptotropism.

Question 69. Nyctinasty is caused due to___________and_____________
Answer. Light, temperature.

Question 70. Animals which cannot locomote are called____________
Answer. Sessile.

Question 71. The other name of amoeboid movement is____________
Answer. Wriggling.

Question 72.__________ muscles of fish help in movement.
Answer. Myotome.

Question 73.____________ joint is an example of hinge joint.
Answer. Elbow.

Question 74. __________is a point where ends of bones meet.
Answer. Joint.

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