Topic outline

  • Chapter 6 – Tissues – 2

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      Tissues - Questions Page

      Tissues

      Q22. The dead element present in the phloem is
      (a) companion cells
      (b) phloem fibres
      (c) phloem parenchyma
      (d) sieve tubes

      Ans. (b) phloem fibres

       

      Q23. Which of the following does not lose their nucleus at maturity?
      (a) Companion cells
      (b) Red blood cells
      (c) Vessel
      (d) Sieve tube cells

      Ans. (a) Companion cells

       

      Q24. In desert plants, the rate of water loss gets reduced due to the presence of
      (a) cuticle
      (b) stomata
      (c) lignin
      (d) suberin

      Ans. (a) cuticle

       

      Q25. A long tree has several branches. The tissue that helps in the sideways conduction of water in the branches is
      (a) collenchyma
      (b) xylem parenchyma
      (c) parenchyma
      (d) xylem vessels

      Ans. (d) xylem vessels

       

      Q26. If the tip of sugarcane plant is removed from the field, even then it keeps on growing in length. It is due to the presence of
      (a) cambium
      (b) apical meristem
      (c) lateral meristem
      (d) intercalary meristem

      Ans. (d) intercalary meristem

       

      Q27. A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
      (a) move downwards
      (b) move upwards
      (c) remain at the same position
      (d) move sideways

      Ans. (c) remain at the same position

       

      Q28. Parenchyma cells are
      (a) relatively unspecified and thin-walled
      (b) thick-walled and specialised
      (c) lignified
      (d) none of these

      Ans. (a) relatively unspecified and thin-walled

       

      Q29. Flexibility in plants is due to
      (a) collenchyma
      (b) sclerenchyma
      (c) parenchyma
      (d) chlorenchyma

      Ans. (d) chlorenchyma

       

      Q30. Cork cells are made impervious to water and gases by the presence of
      (a) cellulose
      (b) lipids
      (c) suberin
      (d) lignin

      Ans. (c) suberin

       

      Q31. Survival of plants in the terrestrial environment has been made possible by the presence of
      (a) intercalary meristem
      (b) conducting tissue
      (c) apical meristem
      (d) parenchymatous tissue

      Ans. (b) conducting tissue

       

      Q32. Choose the wrong statement
      (a) The nature of matrix differs according to the function of the tissue
      (b) Fats are stored below the skin and in between the internal organs
      (c) Epithelial tissues have intercellular spaces between them
      (d) Cells of striated muscles are multinucleate and unbranched

      Ans. (c) Epithelial tissues have intercellular spaces between them

       

      Q33. The water conducting tissue generally present in gymnosperm is
      (a) vessels
      (b) sieve tube
      (c) tracheids
      (d) xylem fibres

      Ans. (c) tracheids

       

      Q34. Differentiate the following activities on the basis of voluntary (V) or involuntary (I V) muscles.
      (a) Jumping of frog
      (b) Pumping of the heart
      (c) Writing with hand
      (d) Movement of chocolate in your intestine

      Ans. (a) V, (b) IV, (c) (V), (d) IV

       

      Q35. Match the column (A) with the column (B)

      Column A

      Column B

      (a) Stratified squamous epithelium

      (i) Subcutaneous layer

      (b) Striated muscle

      (ii) Cartilage

      (c) Fluid connective tissue

      (iii) Skeletal muscle

      (d) Filling of space inside the organs

      (iv) Alveloar tissue

      (e) Adipose tissue

      (v) Blood

      (f) Surface of joints

      (vi) Skin

       

      Ans. (a) – (vi), (b) – (iii), (c) – (v), (d) – (iv), (e) – (i), (f) – (ii)

       

      Q36. Match the column (A) with the column (B)

      Column A

      Column B

      (a) Arenchyma

      (i) Thin-walled packing cells

      (b) Collenchyma

      (ii) Carbon fixation

      (c) Parenchyma

      (iii) Localised thickening

      (d) Permanent tissue

      (iv) Buoyancy

      (e) Photosynthesis

      (v) Sclerenchyma

       

      Ans. (a) – (iv), (b) – (iii), (c) – (i), (d) – (v), (e) – (ii)

       

      Q37. Where is apical meristem found?

      Ans. Apical meristem is found at the tip of root or shoot of the plant.

       

      Q38. Which tissue makes up the husk of coconut?

      Ans. The husk of coconut is made of sclerenchymatous tissue.

       

      Q39. Name types of simple tissues.

      Ans. The three types of simple tissues of plants are: Parenchyma, Collenchyma, Sclerenchyma

       

      Q40. What is the utility of tissues in multi-cellular organisms?

      Ans. Tissues provide structural strength, mechanical strength, show division of labour.

       

      Q41. What are the constituents of phloem?

      Ans. Phloem is made up of four types of elements: sieve tube, companion cells, phloem fibres and phloem parenchyma.

       

      Q42. Define the term “tissue”.
      Or
      What is a tissue?

      Ans. A group of cells that are similar in structure and/or work together to achieve a particular function forms a tissue.

       

      Q43. How many types of elements together make up the xylem tissue?
      Name them.

      Ans. Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres.

       

      Q44. Fill in the blanks.
      (a) Cork cells possess _____ on their walls that makes them impervious to gases and water.
      (b) _____ have tubular cells with perforated walls and are living in nature.
      (c) Bone possess a hard matrix composed of _____and _____.

      Ans. (a) suberin

      (b) Sieve tubes

      (c) calcium, phosphorus