Chloroplasts and the overall reaction of photosynthesis Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which structure in a chloroplast contains the enzymes of the light-independent reactions?
- A. Thylakoid membrane
- B. Granum
- C. Envelope
- D. Stroma
2. Which statement about the oxygen released in photosynthesis is correct?
- A. It comes from water
- B. It comes from carbon dioxide
- C. It comes from glucose
- D. It comes from chlorophyll
3. What does DCPIP do in the Hill reaction?
- A. It provides carbon dioxide
- B. It accepts electrons and loses its blue colour
- C. It acts as a buffer
- D. It absorbs light
4. A tube containing boiled chloroplasts and DCPIP stays blue in the light. Why?
- A. The chloroplasts have no water
- B. DCPIP needs darkness
- C. There is too much light
- D. The proteins are denatured so no electrons are released
5. Why is the sucrose solution used for isolating chloroplasts isotonic?
- A. To prevent the chloroplasts bursting or shrinking by osmosis
- B. To provide a source of carbon for glucose
- C. To slow down enzyme activity
- D. To keep the pH constant