Some sort of physiological pump is believed to be involved in active transport.

Name: Some sort of physiological pump is believed to be involved in active transport.
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Quizplus · Accepted Answer

Active transport involves the movement of substances across cell membranes against their concentration gradient, which requires energy. This process often involves physiological pumps, such as the sodium-potassium pump, to transport ions and other molecules.

Some Sort of Physiological Pump Is Believed to Be Involved