OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which is true about active transport?
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It requires energy
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It does not require energy
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It moves substances down the concentration gradient
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It moves material from high to low concentration
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Explanation:
Detailed explanation-1: -Active transport needs energy because it is not a passive transport and the molecules have to move against the concentration gradient. Hence it requires energy to be carried by the carrier protein. It requires the use of energy in the form of ATP.
Detailed explanation-2: -Active transport uses energy to transport molecules across the plasma membrane. This uses energy from ATP.
Detailed explanation-3: -Active transport occurs across the plasma membrane against the concentration gradient from their lower to higher concentration. It requires ATP. So it is an energy dependent process.
There is 1 question to complete.