Question: There are two types of plants, C3 and C4. C3 plants use the Calvin Cycle to generate sugar. C4 pl…

There are two types of plants, C3 and C4. C3 plants use
the Calvin Cycle to generate sugar. C4 plants use phosphoenol
pyruvate to make malate and oxaloacetate which will eventually be
used to make sugar. Both types of plants have stomatas (openings on
leaves that can be opened and closed) for CO2 entry. In addition,
water is also lost through the stomata. C3 plants are only able to
synthesize sugar at relatively high CO2 levels because
photosynthesis will stop when CO2 production from the mitochondria
equals the use of CO2 in the chloroplasts. C4 plants are able to
continue photosynthesis even at low CO2 levels. (1) Explain the
Calvin cycle. (2) Why are C4 plants able to survive in hot, dry
conditions when C3 plants are not? (3) Plants can develop cancer
but it is usually from an infection not from the ionizing rays of
the sun. What part of the photosynthesis pathway do you think
protects the plant form sun damage?