Know what photorespiration is and what the difference between C3 C4 and CAM. What specialized structures...
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Know what photorespiration is and what the difference between C3 C4 and CAM. What specialized structures or strategies do some plants possess to survive in harsh conditions?
Homework Answers
Photorespiration is a process in which the plant where the
RuBisCo oxygenates RuBP by utilising some of the ATP that is
produced in the process of photosynthesis. It is basically a
wasteful process as water is also lost out through the leaves while
performing the process.
The difference between c3, c4 and cam plant is shown in the picture
below.
CAM plants have succulent leaves as to store as much water in
the plant as much possible and reduced surface area of the leaves
to minimise the loss of water as they grow in harsh conditions
where water is not available in adequate amount and temperature is
high. CAM plants do not open their stomata during the day rather
they store the CO2 by uptaking it during the night by opening the
stomata in the night and thus reducing the extent of water loss
during the day.
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13) C4 plants and CAM plants have evolved distinct methods to prevent photorespiration and reduce water loss. Compare and contrast how these methods differ between the two types of plants. (6 pts)
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