A) against concentration gradient and requires ATP
B) against concentration gradient and does not require ATP
C) along concentration gradient but require ATP
D) along concentration gradient but does not require ATP
Correct Answer: A
Solution :
Active transport uses specific proteins called pumps, which use metabolic energy (ATP) to & move ions or molecules against their B concentration gradient. Common examples of active transport are \[N{{a}^{+}}-{{K}^{+}}\]ATP as e. \[C{{a}^{++}}\]ATP ase and proton pump.You need to login to perform this action.
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