第 1 题
1 分What are the two main products of the light-dependent reactions that are essential for the reduction of glycerate-3-phosphate (PGA) in the Calvin cycle?
GCE A-Level - Higher 2 (H2) · Biology (9477)
Photosynthesis as an energy-trapping process：练习题
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第 2 题
1 分Which statement correctly distinguishes between the absorption spectrum and the action spectrum of photosynthetic pigments?
第 3 题
1 分During the light-dependent reactions of photosynthesis, what is the immediate source of electrons to replace those lost by the reaction center chlorophyll in Photosystem II?
第 4 题
1 分Which of the following describes the role of the thylakoid membrane in the light-dependent reactions of photosynthesis?
第 5 题
1 分In C3 plants, the enzyme rubisco catalyzes the fixation of carbon dioxide. Which molecule does carbon dioxide combine with at the start of the Calvin cycle?
第 6 题
5 分During the Calvin cycle, the enzyme Rubisco can bind to both \(CO_{2}\) and \(O_{2}\). Explain how an increase in global temperatures might decrease the efficiency of photosynthesis in C3 plants through this enzymatic property.
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