Chapter 4 Physiology of Cells. Movement through cell membranes. Substances move through cell membranes in two ways: Passive Transport: does not require any energy activity from the cell membrane Active Transport: requires expenditure of metabolic energy by the cell. PASSIVE TRANSPORT.
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movement of solute particles from an area of low concentration to high
concentration and up a concentration gradient by the use of a carrier molecule
This is one of multiple images that display receptor-mediated endocytosis.
the chemical reactions that occur within the cell
CATABOLISM – operates on the pathway of cellular respiration (breakdown of glucose to carbon dioxide and water)
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