LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1:lower concentration, 2:higher concentration, 3:NADPH
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1:higher concentration, 2:lower concentration, 3:NADPH
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1:higher concentration, 2:lower concentration, 3:ATP
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1:lower concentration, 2:higher concentration, 3:ATP
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Detailed explanation-1: -Active transport is a kind of cellular transport in which substances like amino acids, glucose and ions are transported across cell membranes to a region that already has a high concentration of such substances.
Detailed explanation-2: -Active transport is defined as movement of a solute from a region of low electrochemical potential on one side of the cell membrane to a region of higher electrochemical potential on the opposite side.
Detailed explanation-3: -Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration. Since such a movement happens against the concentration gradient, it cannot happen naturally, and needs energy in the form of ATP to be carried out.
Detailed explanation-4: -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.