Title Class 09 Science 6 Tissues.pdf ✅

Tissues DPP-01 [Topic: Are Plants and Animals Made of Same Types of Tissues?] Very Short Answer Type Questions 1. What is a tissue? 2. Where is apical meristem found? OOOO Which meristem is present at growing tips of stems and roots. 3. Which tissue makes up the husk of a coconut? 4. How are simple tissue different from complex tissue? 5. Girth of stem increases due to which type of meristem? 6. Name the tissue derived directly from the meristem of an embryo. 7. What is the name given to a group of cells with similar structure organised to do a common function? 8. Which plant tissue always remains in active metabolic state? 9. In which tissue sieve tubes and companion cells are found? 10. What is the name given to the long, narrow dead cells having thick deposition of lignin in the cell wall? 11. What is cambium? 12. Which tissue is responsible for transport of water in plants? 13. How can we determine age of a tree? 14. Which is the living element of xylem? 15. Which tissue in plants conducts food? 16. Where are intercalary meristems found? 17. What do you mean by turgidity? 18. What is function of the guard cells? 19. What is the role of suberin deposits in cork cambium? 20. How and where is carbon fixation takes place in plants? 21. Which plant tissue provides buoyancy to aquatic plants? How? 22. Which is the water conducting tissue generally present in the gymnosperm? 23. If the tip of a sugarcane plant is removed from the field even then it keeps growing in length. Why? 24. In desert plants, the rate of water loss gets reduced, how?
25. Which type of components in phloem, do not lose their nucleus at maturity? 26. Which tissue is responsible for survival of plants in terrestrial environment? 27. Name the simple tissue which has dead cells. 28. Which plant tissue provides both mechanical strength as well as flexibility? 29. What is meant by differentiation? 30. Why does water hyacinth float on water surface? 31. Which component of phloem is absent in monocot stem? 32. Cell wall of meristematic tissue is made up of which chemical? 33. Name a non-living component of the phloem. 34. Can we give reason why meristematic cells would lack vacuoles? 35. Presence of which tissue in plants has made their survival possible in terrestrial environment? 36. Water hyacinth float on water surface. Explain. 37. Which structure protects the plant body against the invasion of parasites? Short Answer Type Questions-I 38. What are the functions of stomata? 39. How is water transported with the help of xylem? 40. How is food transported by Phloem? 41. Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall. 42. Give three features of parenchyma cells. 43. Complete the table: 44. (a) Name the plant tissue which is found in the husk of a coconut. Identify the chemical which is responsible for its stiffness. (b) Give one way in which it differs from parenchymatous cells. 45. What is the utility of tissues in a multicellular organism? 46. Name three types of simple tissues. 47. What are the constituents of phloem?
48. How many types of elements together make up a xylem tissue? Name them. 49. What happens to the cells formed by meristematic tissue? 50. Given below are some characteristic. Supply the name of plant tissue which possesses that characteristic. (i) Thin walled, packing cells (ii) Photosynthesis (iii) Localized thickenings (iv) Provides Buoyancy Short Answer Type Questions-II 51. Name the plant tissue which shows the following features? (i) present in the outermost layer of plant body such as leaves, flowers, stem and roots. (ii) protective tissue which has one type of cell with suberin deposits. (iii) made up of green coloured chloroplasts and have intercellular space 52. What is the location and function of companion cells? 53. Give six differences between the permanent tissue and meristematic tissue. 54. (a) Name the living component which is common in both the complex permanent tissue found in the plants. What is its function? (b) Give any two ways in which this tissue differs functionally from each other. 55. Give six differences between the plant and the animal tissues. 56. Mention the role of parenchyma, collenchyma and sclerenchyma. 57. How do multicellular organisms achieve highest possible efficiency in their functioning? OOOO Multi-cellular organisms show division of labour even tissue level. Comment. OOOO What is the utility of tissues in multi-cellular organisms? 58. Discuss the way plant tissues with ability to divide are classified on the basis of their location in the plant body. Support your answer by giving examples. 59. Growth of roots in onion bulbs (i) Take two glass jars and fill them with water. (ii) Now, take two onion bulbs and place one on each jar, as shown in Figure. (iii) Observe the growth of roots in both the bulbs for a few days. (iv) Measure the length of roots on day 1,2 and 3 . (v) On day 4 , cut the root tips of the onion bulb in jar 2 by about 1cm. After this, observe the growth of roots in both the jars and measure their lengths each day for five more days