LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxygen is released into the atmosphere.
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Protons are pumped from the thylakoid space to the stroma.
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RuBP is carboxylated then regenerated in the Calvin cycle.
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Triose phosphate is converted to glycerate 3-phosphate.
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Detailed explanation-1: -In the last stage of the Calvin Cycle, RuBP is regenerated, which enables the system to prepare for more CO2 to be fixed.
Detailed explanation-2: -RUBP Regeneration refers to the cyclical process where the photosynthetic enzyme Rubisco fixes carbon dioxide into the sugars that fuel plant growth and productivity.
Detailed explanation-3: -The light-independent reactions (Calvin cycle) use stored chemical energy from the light-dependent reactions to “fix” CO2 and create a product that can be converted into glucose. The ultimate goal of the light-independent reactions (or Calvin cycle) is to assemble a molecule of glucose.
Detailed explanation-4: -Carbon fixation, the incorporation of carbon dioxide into an organic molecule, is the first step of the light independent process. To form one molecule of glucose, 6 molecules of CO2 bind with Ribulose Bisphosphate (RuBP). This reaction is catalyzed by the enzyme ribulose biosphosphate carboxylase/oxidase (RUBISCO).