Active transport, vesicles and ATP Quiz
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5 questions, one answer each
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1. Which feature identifies active transport?
- A. Movement down a concentration gradient
- B. Movement against a concentration gradient using ATP
- C. Movement through the phospholipid bilayer
- D. Movement in a vesicle only
2. Neutrophils take in bacteria by:
- A. Exocytosis
- B. Simple diffusion
- C. Facilitated diffusion
- D. Endocytosis
3. Which equation shows the regeneration of ATP?
- A. ATP → ADP + Pᵢ
- B. ATP + H₂O → ADP + Pᵢ
- C. ADP + Pᵢ → ATP
- D. ADP → ATP + H₂O
4. What happens to the area of the cell surface membrane in exocytosis?
- A. It increases
- B. It decreases
- C. It stays the same
- D. It disappears
5. Why is cyanide likely to reduce active transport?
- A. It blocks channel proteins directly
- B. It reduces diffusion
- C. It stops respiration so less ATP is made
- D. It makes membranes more fluid