Question

3. How do underwater plants breathe?​

Answer 1

Answer:

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Explanation:

Oxygen dissolves into water from two sources: the atmosphere and from plants in the water. In the presence of sunlight, these produce oxygen through photosynthesis and release this oxygen into the pond water. At night and on very cloudy days, algae and submerged plants remove oxygen from the water for respiration.

Answer 2

ANSWER:

Underwater plants have specially designed stems to allow for the CO2 gas to be exchanged between the leaves where it is absorbed from the water. In addition to carrying the carbon dioxide, the water itself is absorbed by the plant. The other vital part of plant nutrition, sunlight, can pass through water. Using sunlight as an energy source, aquatic plants are able to combine the water around them with the carbon dioxide that is absorbed through the leaves to create food in the form of glucose.

Plants breathe in air through stomata, just as humans breathe air through their noses. ... Aquatic plants have their leaves near or under the water, but they also need to breathe. Plants that float on the surface of the water have their stomata on top, where they have access to air.

Oxygen dissolves into water from two sources: the atmosphere and from plants in the water. ... In the presence of sunlight, these produce oxygen through photosynthesis and release this oxygen into the pond water. At night and on very cloudy days, algae and submerged plants remove oxygen from the water for respiration.

The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common. Aquatic plants can only grow in water or in soil that is frequently saturated with water. They are therefore a common component of wetlands.

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