OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Active transport ____ and is the movement of a substance from ____ to ____ concentration
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requires energy, high to low
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requires no energy, low to high
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requires no energy, high to low
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requires energy, low to high
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Explanation:
Detailed explanation-1: -During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport .
Detailed explanation-2: -During active transport, molecules move from an area of low concentration to an area of high concentration. This is the opposite of diffusion, and these molecules are said to flow against their concentration gradient. Active transport is called “active” because this type of transport requires energy to move molecules.
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