OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of cellular transport moves molecules from low concentrations to high concentrations?
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Osmosis
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Diffusion
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Passive Transport
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Protein Pumps
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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: -Cells also require transport proteins that will actively pump certain solutes across the membrane against their electrochemical gradient (“uphill”); this process, known as active transport, is mediated by carriers, which are also called pumps.
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