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Health, 23.10.2019 02:10, makaylahendrix7954

What type of passive transport mechanism is most similar to an active transport mechanism and why?

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Biology, 05.07.2019 21:00, StupidFatChipmunk

There are two main ways in which molecules are transported into and out of cells - active transport and passive transport. which of the following statements is true of passive transport? a. molecules move up a concentration gradient during passive transport. b. endocytosis and exocytosis are two forms of passive transport. c. carrier proteins are sometimes used during passive transport. d. energy, in the form of atp, is essential for passive transport.

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Biology, 25.07.2019 15:00, dreamdancekay

In nerve cells the sodium-potassium pump is used to generate gradients of both sodium and potassium ions to propagate electrical signals that travel along nerves. this is a(n) a) example of phagocytosis. b) active transport mechanism. c) passive transport mechanism. d) example of movement with the concentration gradient.

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Biology, 14.10.2019 19:00, Lalagrl

Active and passive transport of solutes across a membrane typically differ in which of the following ways? a.active transport is usually down the concentration gradient of the solute, whereas passive transport is always against the concentration gradient of the solute.b.active transport always involves the utilization of cellular energy, whereas passive transport does not requires cellular energy.c.active transport is always faster than passive transport.d.active transport uses protein carriers, whereas passive transport uses carbohydrate carriers.e.active transport is used for ions, passive transport is used for uncharged solutes

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Biology, 12.11.2019 19:31, vanessacasillas452

Normal homeostatic conditions require potassium concentrations to be about 1000 times higher inside the cell than in the blood. what mechanism does a cell use to move these small potassium molecules into the cell against the concentration gradient? passive transport by osmosis active transport by proteins passive transport by diffusion active transport by endocytosis

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