THE CELL
TRANSPORT INTO AND OUT OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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true
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false
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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: -Active transport requires energy for the process by transporting molecules against a concentration or electrochemical gradient.
Detailed explanation-3: -Answer and Explanation: In active transport, some solutes are moved against their concentration gradients, from one side of a membrane to the other, using energy from ATP hydrolysis. This statement is true.
Detailed explanation-4: -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.
Detailed explanation-5: -Passive transport requires no energy input, as compounds are able to move freely across the membrane based only on a favourable concentration gradient (Figure 1.11).