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Phototropism is the response to light. It is achieved by the action of the hormone auxin. Auxin is made in the apical meristems, moves downward by active transport into the sone of elongation and generates grow by stimulating elongation. When all sides of the apical meristem are equally illuminated, growth of the stem is uniform and the stem grows straight. When the stem is unequally illuminated, auxin moves downward into the zone of elongation but concentrates on the shady side of the stem. Auxin that would have normally accumulated on the sunny side end up on the shady side. The higher the concentration of auxin in the shady side of the stem causes differential growth. Since auxin generates growth by stimulating elongation, the shady side grows more than the sunny side. When the shady side grows more than the sunny side, the stem would bend towards the light.
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Explain why plants are able to continue the dark reactions when they are not able to use the light reactions?
Explain why plants are able to continue the dark reactions when they are not able to use the light reactions?
How are the dark reactions that occur in plants dependent on the light-reactions?
The dark reactions that occur in plants are dependent on the light reactions because the dark reactions need ATP and NADPH. ATP and NADPH are energy molecules that dark reactions need to do their job.
How are the dark reactions that occur in plants dependent on the light reactions?
The dark reactions that occur in plants are dependent on the light reactions because the dark reactions need ATP and NADPH. ATP and NADPH are energy molecules that dark reactions need to do their job.
Are the light-independent reactions in plants fueled by chloroplast?
no
The light-independent reactions in plants are fueled by chloroplasts.?
no
What are the reactions in which light energy from the sun is converted to chemical energy called?
light-dependent reactions. such as photosynthesis in green plants.
In what organelle do light reactions occur in plants?
Both light and dark reactions occur in the chloroplasts of cells. More specifically light reactions take places in the thylakoid, dark in the stroma.
The light indepndent reactions in plants?
hi Sarah lorenz
What happens during each of the two stages of photosynthesis?
These stages are called the light reactions and the dark reactions. The light reactions take place in the presence of of light. The dark reactions do not require direct light, however dark reactions in most plants occur during the day.
What happens during each each of the two stages of photosynthesis?
These stages are called the light reactions and the dark reactions. The light reactions take place in the presence of of light. The dark reactions do not require direct light, however dark reactions in most plants occur during the day.
How do plants make their own food using carbon dioxiodwaterenergy from light?
Through photosynthesis in their choloplasts. This involves light reactions and dark reactions.
For the following questions compare the light reactions with the Calvin cycle of photosynthesis in plants?
Comparing the light reactions with the Calvin cycle of photosynthesis, which requires CO2?
