객관식
Which type of chemical reaction uses to break down biomolecules?
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3. Acids and Bases
Organic Chemistry Reactions
객관식
Which of the following is the final stage of the Calvin cycle in organic chemistry reactions?
A
Reduction phase
B
Regeneration of
C
Carbon fixation
D
Glucose synthesis
검증된 단계별 안내1
Understand the Calvin cycle: The Calvin cycle is a series of biochemical redox reactions that take place in the stroma of chloroplasts in photosynthetic organisms. It is also known as the light-independent reactions or dark reactions.
Identify the stages of the Calvin cycle: The Calvin cycle consists of three main stages: Carbon fixation, Reduction phase, and Regeneration of RuBP (Ribulose bisphosphate).
Carbon fixation: In this initial stage, carbon dioxide is fixed into an organic molecule. The enzyme RuBisCO catalyzes the reaction between CO2 and RuBP, forming a 6-carbon compound that splits into two 3-phosphoglycerate (3-PGA) molecules.
Reduction phase: The 3-PGA molecules are phosphorylated by ATP and then reduced by NADPH to form glyceraldehyde-3-phosphate (G3P). Some G3P molecules are used to synthesize glucose and other carbohydrates.
Regeneration of RuBP: This is the final stage of the Calvin cycle. The remaining G3P molecules are used to regenerate RuBP, enabling the cycle to continue. This process requires ATP and involves a series of complex reactions to rearrange carbon atoms.
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