Free Transport In Plants (Daily Quiz: 11) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following statement is correct?

(a) Most of the minerals enter the root by active transport.

(b) Unlike water, all minerals cannot be passively absorbed by roots.

(c) Ions are absorbed from soil by both passive and active transport.

(d) All of the above

Question-2

Guttation is mainly due to

(a) transpiration

(b) osmosis

(c) root pressure

(d) imbibition.

Question-3

Arrange the following events in a correct order that explains the mass flow of materials in the phloem?

1. Water diffuses into the sieve tube elements.
2. Leaf cells produce sugar by photosynthesis.
3. Solutes are actively transported into the sieve elements.
4. Sugar is transported from cell to cell in the leaf.
5. Sugar moves down the stem.

(a) (ii) – (iv) – (i) – (iii) – (v)

(b) (ii) – (iv) – (iii) – (i) – (v)

(c) (i) – (ii) – (iii) – (iv) – (v)

(d) (iv) – (ii) – (i) – (iii) – (v)

Question-4

Stomata opens because of

(a) Increased turgidity of the guard cells brought about by the exposure to light

(b) Oxygen in the air

(c) Vacuoles in guard cells

(d) All the above

Question-5

In guard cells when sugar is converted into starch, the stomatal pore

(a) opens fully

(b) opens partially

(c) closes completely

(d) remains unchanged.