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
Read and Learn More Class 10 Life Science MCQs
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
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
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?
(a) Cerebrum
(b) Cerebellum
(c) Pons
(d) Medulla oblongata.
Answer. (b) 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
(b) Convex
(d) Biconvex
(3) 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_______________
(b) Ear
(d) Heart
(a) Brain
(c) 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
(3) 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. (d) 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. (c) 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_________________
(a) Thyroxin
(b) Testosterone
(c) Oxytocin
(d) Adrenalin
Answer. (d) Adrenalin
Question 120. The hormone produced in allergic reaction is _____________
(a) Gluco corticoides
(b) Mineralo corticoides
(c) Nor epinephrine
(d) Epinephrine
Answer. (a) Gluco corticoids
Question 121. Which is the gastrointestinal hormone?
(a) Prolactin
(b) Enterokinase
(c) Nor – epinephrin
(d) Secretin
Answer. (d) Secretin
Question 122. In plants, auxin synthesis occurs in _________________
(a) Cortex
(b) Xylem cells
(c) Phloem cells
(d) Root and shoot tips
Answer. (d) Root and shoot tips
Question 123. A substance that induces dormancy of seed is _____________
(a) ABA
(b) GA
(c) Urea
(d) Cytokenin
Answer. (a) 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
(c) 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.