CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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obtain molecules they need
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break down molecules
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engulf large particles
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detect the charge of molecules
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Detailed explanation-1: -Active transport uses energy to transport molecules across the plasma membrane. This uses energy from ATP. They also use pumps to get molecules in or out of the cell.
Detailed explanation-2: -Active transport: moving against a gradient To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells.
Detailed explanation-3: -Active transport requires energy for the process by transporting molecules against a concentration or electrochemical gradient.
Detailed explanation-4: -Active transport is a very important process enabling cells to accumulate molecules or ions from the environment against the concentration gradient. Conversely, contents of cells heavily loaded with electrolytes or metabolic products can be excreted against the concentration gradient.