NEET Biology Class 9 Chapter 2 Tissues Very Short Answer Questions

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Tissues Very Short Answer Questions

Question 1. Where is chlorenchyma found in plant body?
Answer: Chlorenchyma is found in green parts of plant body like leaves and young stem

Question 2. Why does a thin and delicate layer of squamous epithelium line blood capillaries?
Answer: To allow easy exchange of materials between blood and body tissues.

Question 3. Which type of blood cells are nucleated at maturity?
Answer: White blood cells or leucocytes

Read And Learn More: NEET Class 9 Biology Very Short Answer Question And Answers

Question 4. Why are skeletal muscles called striated muscles ?
Answer: They have alternate light and dark bands or striations, therefore they are called striated muscles.

Question 5. What other structure is especially abundant in muscle cells?
Answer: Microfilaments.

Question 6. What is the function of a firoblast ?
Answer: To produce various types of connective tissue fibers

Question 7. What is the function of adipose tissue ?
Answer: To store fats, which insulate and protect parts of the body.

Question 8. What might be an advantage in cardiac muscle cells bring branched?
Answer: Gives them greater strength.

Question 9. How is the branched structure of neurons related to their function?
Answer: They serve to establish and operate communication networks

Question 10. What is the function of mitochondria in a muscle cell?
Answer: To provide muscle cells with energy through cellular respiration reactions.

Question 11. What is the source of energy for muscle cell contraction?
Answer: ATP generated from cellular respiration.

Question 12. Which organ is composed of cardiac muscle tissue?
Answer: Only the heart

Question 13. What is the overall purpose of a nervous system?
Answer: The function of the nervous system is to detect and react to changes in the environment to maintain homeostasis of the origanism.

Question 14. Write the four types of animal tissues.
Answer: Epithelial tissue, Muscular tissue, Connective tissue and Nervous tissue

Question 15. Name the three types of simple permanent tissues.
Answer: Parenchyma, Collenchyma and Sclerenchyma.

Question 16. Which tissue is called loose connective tissue?
Answer: Areolar tissue.

Question 17. Name the three parts of a neuron.
Answer: Cyton (cell body), Dendrons and Axon

Question 18. What is meant by division of labour?
Answer: It refers to the distribution of different functions among different parts of the organism’s body which get specialized for the particular function.

Question 19. Which tissue is the principal component of tendons and
ligaments?
Answer: Dense regular connective tissue

Question 20. What is the main function of parenchyma?
Answer: Main function of parenchyma is to store food and provide turgidity to the organ.

Question 21. What are tracheary elements?
Answer: Tracheids and vessels in xylem are called tracheray elements.

Question 22. Name the tissue responsbile for growth in plants.
Answer: Meristematic tissue.

Question 23. What is the chief function of collenchymas?
Answer: It provides mechanical strength as well as flexibility to soft parts of plant.

Question 24. Which type of animal tissue connects muscles to the bone?
Answer: Tendons

Question 25. Which tissue type does protect the animal body?
Answer: Epithelial tissue

Question 26. What is the chief function of

  1. R.B.Cs.
  2. Blood platelets.

Answer:

  • Transport of oxygen
  • Platelet plays a role in blood clotting

Question 27. An organism has actively dividing cells at its growing apices which continue to divide and add new cells throughout the life. To which group it belongs-plants or animals?
Answer: The organism is a plant.

Question 28. Name the protein found in white fire and yellow fire.
Answer: Collagen protein is found in white fires whereas elastin protein is found in yellow fires.

Question 29. State the functions of microvilli.
Answer:

  • Microvilli have the following main functions:
  • They increase the absorptive surface of the intestine
  • They increase the surface area available for reactions.

Question 30. What does the root tip contain that helps in root elongation?
Answer: The root tip contains apical meristematic tissues which are responsbile for elongation of roots.

Question 31. Which plant tissue provides both mechanical strength as
well as flexibility?
Answer: Collenchyma provides both mechanical strength as well as flexibility

Question 32. Why is the axon called efferent nerve process?
Answer: Axon is called efferent nerve process because it conducts the impulse away from the cyton.

Question 33. Define arenchyma.
Answer: When the cells have air filed in large cavities ofcell, it is called arenchyma present in aquatic plant to help them in floating.

Question 34. What is differentiation?
Answer: The process of taking up permanent shape, size and function by cells is called differentiation.

Question 35. Name the three types of meristematic tissues.
Answer:

The three types are:

  • Apical tissue – tips of root and shoot
  • Lateral tissue-sides of stem.
  • Intercalary tissue – at nodes.

Question 36. Which tissues are present at the nodes of the plants.
Answer: Intercalary tissue

Question 37. What are the various types of blood cells?
Answer:

There are three types:

  1. RBCs.
  2. WBCs and
  3. Platelets.

Question 38. Name the following:

1. Tissue that forms the inner lining of our mouth.
Answer: Epithelial tissue

2. Tissue that connects muscle to bone in humans.
Answer: Tendon

3. Tissue that transports food in plants.
Answer: Phloem

4. Tissue that stores fat in our body.
Answer: Adipose tissue

5. Connective tissue with a flied matrix.
Answer: Blood

6. Tissue present in the brain.
Answer: Nervous tissue.

Question 39. Name the tissue responsbile for movement of our body. What does a neuron look-like?
Answer: Muscular tissue

Question 41. Where is apical meristem found?
Answer: A miniature tree with thin hair-like parts arising from its ends.

Question 42. Give one example of
Answer:

  • Apical meristem and
  • Lateral meristem.
  • Answer: One example of
  • Apical meristem-Shoot apex
  • Lateral meristem – Cambium.

Question 43. Define permanent tissues.
Answer: A group of cells that have lost their ability to divide and have assumed a definite form and size is known as permanent tissue.

Question 44. Which chemical is deposited at the corner of cells in
collenchyma?
Answer: Pectin and cellulose are deposited at the corner of cells in collenchyma

Question 45. Which chemical is deposited in the cell wall of
sclerenchyma?
Answer: Lignin is deposited in the cell wall of sclerenchyma

Question 46. What is the common name of the following?

  1. Xylem
  2. Phloem

Answer: Wood

Question 47. Which type of simple tissue is used for making ropes?
Answer: Sclerenchyma is used for making ropes

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