NEET MCQ on Apoplast Quiz Questions

1. In plants, water movement is

A up the potential gradient in both symplast and apoplast B down the potential gradient in apoplast and up the potential gradient in symplast C down the potential gradient in both symplast and apoplast D down a potential gradient in symplast and up the potential gradient in apoplast

2. Pick the incorrect statement regarding apoplast movement

A movement of water is through mass flow B gradient-dependant C mass flow of water takes place as a result of cohesive and adhesive properties of D continuous water stream gets tension when water is absorbed by root hairs

3. In roots, most of the water flows through

A Symplast B Apoplast C Imbibition D Active transport

4. Movement of water through apoplast stops at the level of ________ and crosses membrane to undergo symplast till xylem cells

A starch sheath B inner layer of cortex C endodermis D all of the above

5. In plants, this about apoplast and symplast water movement is true

A being down a potential gradient B an equal rate of transport C conduction through interconnected protoplasts D assistance by cytoplasmic streaming

6. Pressure in roots develops due to

A low osmotic soil potential B rise in transpiration C active absorption D passive absorption

7. Which of the following statements does not hold true in context of apoplast?

A occurs through intercellular spaces and cell walls B system of adjacent cell walls is continuous all through the plant C crosses cell membrane D discontinuous path at the place of casparian strips of endodermis in roots

8. This is not part of apoplast

A cell walls B vessels C intercellular spaces D sieve tubes

9. Symplastic movement is slower than apoplastic movement because

A molecule has to enter through cell membrane B it is down the gradient C as it involves cytoplasmic streaming always D all of the above

10. Most of the movement in roots through apoplast is due to

A endodermal cells are loosely packed and hence no resistance to water movement B medullary cells are loosely packed and hence no resistance to water movement C cortical cells are loosely packed and hence no resistance to water movement D pericycle cells are loosely packed and hence no resistance to water movement