Which of the following is an example of a secondary active transport? a. CPT-I b. O2 pump c. Na+/K+ pump c. proton pump
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Which of the following is an example of a secondary active transport?
a. CPT-I
b. O2 pump
c. Na+/K+ pump
c. proton pump
Step by step
Solved in 3 steps
- Which of the following methods of transport is being used to transfer the substance into the cell in the accompanying graph? a. diffusion down a concentration gradient b. osmosis c. facilitated diffusion d. active transport e. vesicular transport f. It is impossible to tell with the information provided.Which of the following is an example of a primary active transport? a.CPT-I b.Na+/K+ pump c.proton pump d.O2 pumpOne substance flows down its concentration gradient, and the energy is harnessed to move another substance up its gradient in the same direction. This best describes a. primary active transport. b. endocytosis. c. symport secondary active transport. d. antiport secondary active transport.
- Which of the following statements is true about active transport? A. The transported species always moves against its electrochemical gradient. B. It is needed only for the transport of polar molecules. C. It is exergonic. D. It must be linked to ATP hydrolysis.Active transport of a substance across a membrane requiresa. a gradient b. the expenditure of ATP c. water d. diffusionWhich of the following is energy independent?a) Active transportb) Primary active transportc) Secondary active transportd) Passive transport
- Describe and explain the difference between: a. Active and passive transport across a membrane. Give an example (can be broad) of a molecule that crosses a membrane for each mechanism. b. Primary vs secondary active transport. Give an example of a molecule(s) that crosses a membrane for each mechanism.A concentration gradient is used as an energy source for____________. Select one: a. Secondary active transport b. Receptor mediated endocytosis c. Primary active transport d. The sodium potassium pumpCompare and contrast the following processes. Give anexample of each to illustrate.a. primary vs secondary active transportb. passive vs facilitated diffusionc. carrier-mediated vs channel-mediated transport
- Which molecule(s) would be expected to diffuse into a cell using passive transport? A) Carbon dioxide B) Water C) Cholesterol D) Glucose E) All of these molecules could diffuse using passive transport.A transport protein requires ATP to pump sodium ions across a membrane. This is a case of_______ . a. passive transport c. osmosis b. active transport d. facilitated diffusionDuring passive transport, substances will move across a selectively permeable membrane until… explain why A. There is no longer any energy to be used B. All solutes reach the other side of the membrane C. There is no more room inside of the cell D. Equilibrium is reached
