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Which of the following statement(s) is/are correct ?
  1. Uneven thickening of cell wall is characteristic of sclerenchyma.
  2. Periblem forms cortex of the stem and the root.
  3. Tracheids are the chief water transporting elements in gymnosperms.
  4. Companion cell is devoid of nucleus at maturity.
  5. The commercial cork is obtained from Quercus suber.

A. (i) and (iv) only

B. (ii) and (v) only

C. (iii) and (iv) only

D. (ii), (iii) and (v) only

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  2. Which of the following statements is correct?
  3. Which of the following figure is a type of permanent tissue having many different types of cell?
  4. Apical and intercalary meristems are primary meristems because
  5. The given figure shows T.S. of monocot stem. Identify the correct labelling of A to F marked in the…
  6. Which one of the following option shows the correct labelling of the parts marked as A, B, C and D in…
  7. Tissues are classified into two main groups, namely meristematic and permanent tissues on the basis…
  8. Trees at sea do not have annual rings because
  9. Which of the following is responsible for the formation of an embryonic shoot called axillary bud?
  10. As secondary growth proceeds, in a dicot stem, the thickness of
  11. Match the terms given in column I with their features given in column II and choose the correct option.Column-IColumn-II(Terms)(Features)A.…
  12. Which of the following pair of match is not correct?
  13. Why grafting is successful in dicots ?
  14. Sclerenchyma usually___________and_____________ protoplasts.
  15. When we peel the skin of a potato tuber, we remove
  16. Which of following helps bamboo and grasses to elongate ?
  17. In an experiment, a student cut a transverse section of young stem of a plant which he has taken from…
  18. Which one of the following have vessels as their characteristic feature?
  19. The given figure shows the T.S of dicot root. Some parts are marked as A, B, C, D, E, & F. Choose the…
  20. Which of the following statement(s) is/are not correct?Cork cambium is also called phellogen.Cork is…
  21. Apical, intercalary and lateral meristems are differentiated on the basis of
  22. A student was given a tissue to observe under the microscope. He observes the tissue and concludes that…
  23. One of the primary function of the ground tissue in a plant is
  24. Which of the following process helps the trichomes in preventing water loss?
  25. The length of different internodes in a culm of sugarcane is variable because of
  26. Cells of permanent tissues are specialized
  27. Which one of the following statement is incorrect ?Epidermal cell has small amount of cytoplasm and…
  28. In the given figure of phloem tissue, identify the marked part (A, B and C) which help in maintaining…
  29. A plant tissue when stained showed the presence of hemicellulose and pectin in cells wall of its cells.…
  30. Identify types of vascular bundles in given figures A, B and C.