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BIO NMDCAT cell membrane
nmdcat.online July 8, 2026

How do channel proteins differ from carrier proteins?

A. They require ATP
B. They are always open
C. They provide a continuous pore
✓
D. They only move ions

📝 Explanation

Channel proteins provide a physical pathway, whereas carrier proteins undergo conformational changes to transport substances.

📖 Additional Information

  • They require ATP
  • They are always open
  • They provide a continuous pore
  • They only move ions

Channel proteins provide a physical pathway, whereas carrier proteins undergo conformational changes to transport substances.

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