Questions: Which of the following molecules is the final electron acceptor for electrons from photosystem I? (A) carbon dioxide (B) NADP+ (C) oxygen (D) chlorophyll in photosystem II

Which of the following molecules is the final electron acceptor for electrons from photosystem I? (A) carbon dioxide (B) NADP+ (C) oxygen (D) chlorophyll in photosystem II
Transcript text: Which of the following molecules is the final electron acceptor for electrons from photosystem I? (A) carbon dioxide (B) NADP+ (C) oxygen (D) chlorophyll in photosystem II
failed

Solution

failed
failed

The answer is (B) D) $NADP^+$.

Explanation for each option: (A) C) carbon dioxide - Incorrect. Carbon dioxide is not involved in the electron transport chain of photosynthesis. It is used in the Calvin cycle for the synthesis of glucose. (B) D) $NADP^+$ - Correct. $NADP^+$ (Nicotinamide adenine dinucleotide phosphate) is the final electron acceptor in the light reactions of photosynthesis, specifically in photosystem I. It gets reduced to NADPH. (C) A) oxygen - Incorrect. Oxygen is a byproduct of the splitting of water molecules in photosystem II, not an electron acceptor in photosystem I. (D) B) chlorophyll in photosystem II - Incorrect. Chlorophyll in photosystem II is involved in the initial stages of the light reactions, not as the final electron acceptor in photosystem I.

Summary: The final electron acceptor for electrons from photosystem I is $NADP^+$, which gets reduced to NADPH.

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Solve the triangle. A=36°, b=5, c=11 a= (Do not round until the final answer. Then round to the nearest tenth as needed.) B= (Do not round until the final answer. Then round to the nearest degree as needed.) C=° (Do not round until the final answer. Then round to the nearest degree as needed.)
failedAnswered
f(x)=sqrt[2x](3x+1), x>0 sqrt(x), x=0
failedAnswered
Which statement correctly describes radioactive isotopes? Multiple Choice They are unstable, but can become stable by bonding with other isotopes. They are stable and will decompose, releasing energy. They are stable and can participate in chemical bonding They are unstable and will decompose, releasing energy.
failedAnswered
For each statement, choose if it is simple or compound. If it is compound, choose which type. Statement Type of statement (a) The train was late. Simple Compound undefined (b) Pens are in the drawer and pencils are on the desk. Simple Compound undefined (c) If the sun is out, I'll go to the beach. Simple Compound undefined
failedAnswered
A molecule with an uneven distribution of charges in different regions of the molecule. ionic compound polar molecule nonpolar molecule hydrophobic molecule