IMMUNOGLOBULINS
CLASSICAL ALTERNATE AND LECTIN PATHWAYS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The first event that happens to CO2 in Calvin Cycle turns it into
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a 2 carbon compound (phosphoglycolate)
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a 3 carbon compound (PGA)
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a 4 carbon compound (malate)
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None of the above
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Explanation:
Detailed explanation-1: -The key step in the Calvin cycle is the event that reduces CO2. CO2 binds to RuBP in the key process called carbon fixation, forming two-three carbon molecules of phosphoglycerate.
Detailed explanation-2: -Hence, PGA is the first stable product formed during the Calvin cycle. PGA is a 3 carbon compound.
Detailed explanation-3: -The carbohydrate products of the Calvin cycle are three-carbon sugar phosphate molecules, or “triose phosphates", namely, glyceraldehyde-3-phosphate (G3P).
Detailed explanation-4: -The PGA molecule loses an oxygen atom as it turns into PGAL.
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