Diffusion is responsible for the
I. exchange of gases during photosynthesis.
II. Stomatal transpiration.
III. Spread of aroma of flower.
IV turgidity to plant cells.

Explain the following statement- Plants exchange gases during photosynthesis.

Read the following statements, (i-v) regarding transpiration and answer the question which follows them (i) It creates transpiration pull for absorption and transport of plants. (ii) It supplies water for photosynthesis (iii) It transports minerals from the soil to all parts of the plants (iv) It heats leaf surfaces, sometimes 10 to 15 degrees (v) It maintains the shape and structure of the plants cells turgid Which of the above statement (s) is are correct?

Repiratory roots I are assimilatory roots which develop in plants growing in deverse habitats II help in the exchange of gases with the help of penumathodes or lenticels III do not posses andy definite organ for the exchange of gases IV develop in plants growing in mangrovs or swamp near sea shores Choose the correct option

The adaptations that reduce the transpiration are I. cutin II. Sunken stomata. III. Increased surface area. IV. Ethylene.