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Which ones are correct (a) Photosynthe...

Which ones are correct
(a) Photosynthetic ATP synthesis is called photophosphorylation
(b)Kranz anatomy occurs in leaf
(c) Reduction in `NADP` to `NADPH` occurs during Calvin cycle
(d) Magnesium occurs in phytol tail of chlorophyll

A

a, b correct

B

c, d correct

C

a, c correct

D

a, d correct

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are correct regarding photosynthesis, let's analyze each statement one by one: ### Step 1: Analyze Statement (a) **Statement:** Photosynthetic ATP synthesis is called photophosphorylation. **Explanation:** The term "photophosphorylation" refers to the process of ATP synthesis that occurs during photosynthesis when light energy is used to add a phosphate group to ADP, forming ATP. This process occurs in the thylakoid membranes of chloroplasts and is indeed a correct statement. ### Step 2: Analyze Statement (b) **Statement:** Kranz anatomy occurs in leaf. **Explanation:** Kranz anatomy is a specialized leaf structure found in C4 plants. It involves a unique arrangement of cells where bundle sheath cells are surrounded by mesophyll cells. This adaptation allows for efficient photosynthesis in conditions where CO2 is limited. Therefore, this statement is also correct. ### Step 3: Analyze Statement (c) **Statement:** Reduction in NADP to NADPH occurs during the Calvin cycle. **Explanation:** This statement is incorrect. The reduction of NADP+ to NADPH occurs during the light-dependent reactions of photosynthesis, not during the Calvin cycle. The Calvin cycle uses NADPH to convert CO2 into glucose. Thus, this statement is false. ### Step 4: Analyze Statement (d) **Statement:** Magnesium occurs in the phytol tail of chlorophyll. **Explanation:** This statement is also incorrect. Magnesium is a central atom in the porphyrin ring of chlorophyll, not in the phytol tail. The phytol tail is a long hydrophobic chain that anchors chlorophyll in the thylakoid membrane. Therefore, this statement is false. ### Conclusion Based on the analysis: - Statement (a) is correct. - Statement (b) is correct. - Statement (c) is incorrect. - Statement (d) is incorrect. Thus, the correct answers are (a) and (b). ### Final Answer: The correct statements are (a) and (b). ---
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