TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Beneath the outer layer of tree bark is a layer of live tissue. The cells of this live tissue contain chloroplasts. The bark also contains structures that allow gas exchange with the environment. These characteristics allow the tree bark to perform photosynthesis. Tree bark photosynthesis occurs mostly in early spring and late fall, or in times of drought or disease. What is the MOST likely reason bark photosynthesis is higher during these conditions?
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The tree has fewer leaves.
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The angle of light is different.
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The bark produces a different type of sugar
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Photosynthesis keeps the bark from freezing
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Explanation:
Detailed explanation-1: -The bark of woody plants is dead but the inner layers inside the bark are living.
Detailed explanation-2: -Stomata are openings in between guard cells that allow plants to exchange gases, such as carbon dioxide and water vapor, with their outside environment.
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).
Detailed explanation-4: -The site of photosynthesis in plants is the chloroplast.
There is 1 question to complete.