Multiple choice

Which of the following is required by both respiration and photosynthesis?

  1. Sunlight

  2. Chlorophyll

  3. Glucose

  4. Cytochrome
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cytochromes are required by both respiration and photosynthesis. They are hemeproteins containing heme groups and are primarily responsible for the generation of ATP via electron transport.

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