Question

Where does actual exchange of gases take place and how? (2)

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Answer 1

Answer:

get it down

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Explanation:

Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Answer 2

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• 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.
• 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.Leaves consist of tiny pores known as stomata. Gaseous exchange occurs through diffusion via stomata. Guard cells regulate each of the stomata.

• Exchange of gases occurs with the closing and opening of the stoma between the inferior of leaves and the atmosphere.

• The exchange of gases also occurs in the roots of plants. They do so by taking in oxygen from the air spaces present in soil. This oxygen enters the root hairs through diffusion and then it reaches other cells of roots for respiration.