Question

Active transport involves transport of ions

• A. Against concentration gradient and require ATP
• B. Against concentration gradient and not require ATP
• C. With concentration gradient and not require ATP
• D. None of the above

Answer 1

The correct option is A Against concentration gradient and require ATP

Active transport is the movement of a substance against its concentration gradient i.e., from a region of low concentration to high concentration. As the transport is against the concentration gradient, ATP or adenosine triphosphate is required to facilitate this transport. So, the correct answer is option A.