Passive transport process Passive transport describes the movement of substances down a concentration gradient and does not require energy consumption. Active transport processes Active transport is the movement of solutes against a gradient and requires the expenditure of energy (usually ATP). Active transport is achieved through one
of the following two mechanisms: Recommended textbook solutionsGlencoe Health1st EditionMcGraw-Hill Education 1,843 solutions Lifetime Health1st EditionRinehart, Winston and Holt 1,294 solutions Introduction to Anatomy and Physiology1st EditionMichelle Provost-Craig, Susan J. Hall, William C. Rose 1,678 solutions Biology1st EditionKenneth R. Miller, Levine 2,470 solutions What is the movement of substance through the cell membrane without the use of cellular energy?Passive transport occurs when substances cross the plasma membrane without any input of energy from the cell. No energy is needed because the substances are moving from an area where they have a higher concentration to an area where they have a lower concentration. Water solutions are very important in biology.
What is the movement of substance through a cell membrane?Active transport is the movement of molecules across a cell membrane in the direction against their concentration gradient, going from a low concentration to a high concentration.
What is used to help substances enter and exit the cell membrane?Facilitated diffusion is diffusion that is helped along (facilitated by) a membrane transport channel. These channels are glycoproteins (proteins with carbohydrates attached) that allow molecules to pass through the membrane.
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