Which of the following is a difference between the electron transport chains in chloroplasts and mitochondria?

• A. Chloroplasts produce ATP, while mitochondria do not.
• B. Chloroplasts release oxygen, while mitochondria release carbon dioxide.
• C. Chloroplasts use NADP+ as an electron carrier, while mitochondria use NAD+.
• D. Chloroplasts occur in the stroma, while mitochondria occur in the thylakoids.

Answer: (C)