Anatomy of flowering plant MCQ Question with Answer

Question No : 22
Main function of lenticel is

Question No : 23
Cork is formed from

Question No : 24
Which of the following is responsible for the formation of an embryonic shoot called axillary bud?

Question No : 25
Read the following statements and answer the question.

1. Cambium is very active and produces a large number of xylary elements having vessels with wider cavities.
2. It is also called early wood.
3. It is lighter in colour and has lower density.

Question No : 26
Read the following statements and answer the question.

1. It has a sclerenchymatous hypodermis, a large number of scattered vascular bundles and a large parenchymatous ground tissue.
2. Vascular bundles are conjoint and closed.
3. Peripheral vascular bundles are generally smaller than the centrally located ones.
4. Phloem parenchyma is absent, and water- containing cavities are present within the vascular bundles.

Question No : 27
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.

Question No : 28
Which of the following statements are correct ?

1. Xylem transports water and minerals.
2. Gymnosperms lack sieve tubes and companion cells in phloem.
3. The first formed primary xylem is called metaxylem.
4. Phloem fibres (bast fibres) are made up of collenchymatous cells.