NEET BIOLOGY

Detailed explanation-1: -Pollen is not transferred within the plant.

Detailed explanation-2: -Oxygen and carbon dioxide are transported through tiny holes (pores) on the surface of leaves and stems through a network of air spaces within the plant to and from all living cells.

Detailed explanation-3: -The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.

Detailed explanation-4: -CO2 fluxes in plant stems and leaves. Up to 50% of root-respired CO2 is transferred via the xylem stream aboveground (Bloemen et al., 2013) and reaches the stem sapwood (in woody plants).

Detailed explanation-5: -Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.