The movement of glucose into a cell when blood sugar is high is accomplished by ________. The movement of K+ against its concentration gradient is accomplished by ________. Group of answer choices simple diffusion; active transport passive transport; active transport active transport; membrane potential simple diffusion; passive transport passive transport; passive transport
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The movement of glucose into a cell when blood sugar is high is accomplished by ________. - Glucose is a larger molecule and cannot passively diffuse through the cell membrane. - Therefore, it requires a carrier protein to facilitate its movement into the cell. - Show more…
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Molecules of glucose move down their concentration gradient, into a cell, through a membrane transport protein during a process called active diffusion. active transport. facilitated diffusion. osmosis. simple diffusion.
Nehal A.
Match each activity below with the correct description of the net movement of molecules across a cell membrane. The direction of net movement choices (A or B) may be used more than once for each answer. A = movement from high to low concentration B = movement from low to high concentration 1. Simple, passive diffusion 2. Facilitated diffusion 3. Active transport 4. Water with regards to the water concentration gradient during osmosis 5. Water with regard to the solute concentration gradient during osmosis
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a.Suppose that the [Ca2+ ] outside of a cell is 4*10-2 M, and the [Ca2+ ] inside the cell is 8*10-3 M. If the Ca2+ ions were to move into the cell, what transport process would be used? Circle the correct answer from the list below. - Active transport: receptor mediated endocytosis - Passive transport: diffusion - Active transport: exocytosis - Passive transport: osmosis - Active transport: protein pumps - Active transport: phagocytosis - Passive transport: facilitated diffusion - Active transport: pinocytosis b) Considering your answer for part a) of this question, would the rate of movement of Ca2+ across the membrane be constant or variable?
Dominador T.
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