Tissue Worksheet-7

Tissue Worksheet-7

11. A mature sieve tube is different from a vessel in

A. lacking a functional nucleus

B. absence of lignin in walls

C. being dead   

D. lacking cytoplasm.

12. Simple tissues are

A. parenchyma, xylem and collenchyma

B. parenchyma, collenchyma and sclerenchyma

C. parenchyma,xylem and sclerenchyma

D. parenchyma, xylem and phloem

13. Meristematic tissues are found in

A. only stems of the plants

B. both roots and stems

C. in all growing tips of the plant body

D. only roots of the plants.

14. Which of the following is not true about ‘sclereids’?

A. These are also called stone cells

B. These form sclerenchyma fibres

C. These are groups of non living cells

D. These are found in nut shells, guava pulp, pear.

15. Aerenchyma is formed by

A. parenchyma                             B. collenchyma

C. sclerenchyma                           D. xylem

16. chlorenchyma is formed by

A. parenchyma                             B. collenchyma

C. sclerenchyma                           D. xylem

17. Most active cell divisions occur in cells of

A. xylem                                         B. phloem

C. apical meristem                       D. none of these

18. Meristematic cells contain

A. thin homogenous cell wall    B. dense cytoplasm

C. large nuclei                               D. all of these

19. Enucleated cells at maturity are

A. palisade cells                            B. guard cells

C. companion cells                       D. sieve elements

20. Generally, plant cell wall is made up of

A. cellulose and pectin                B. only cellulose

C. chitin                                          D. murein

Answer Key:

11. B
12. B
13. B
14. C
15. D
16. B
17. C
18. C
19. B
20. B