In an active transport protein, ATP hydrolysis.causes the protein to change shape. ATP hydrolysis creates a channel through the membrane. ATP carries a substance across a membrane. O ATP uses the protein to move across the membrane.

In an active transport protein, ATP hydrolysis.causes the protein to change shape. ATP hydrolysis creates a channel through the membrane. ATP carries a substance across a membrane. O ATP uses the protein to move across the membrane.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter4: Energy And Metabolism

Section: Chapter Questions

Problem 13SQ: A transport protein requires ATP to pump sodium ions across a membrane. This is a case of ______. a....

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Question

Please choose the correct ans

In an active transport protein,
ATP hydrolysis.causes the protein to change shape.
ATP hydrolysis creates a channel through the membrane.
ATP carries a substance across a membrane.
ATP uses the protein to move across the membrane.

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Step 1: Channels, Transporters and Active transporters

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Similar questions

Active transport must function continuously because_______. a. plasma membranes wear out b. cells must be in constant motion c. facilitated transport opposes active transport d. diffusion is constantly moving the solutes in the other direction
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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.
The principal force driving movement in diffusion is______. a. temperature b. particle size c. concentration gradient d. membrane surface area
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Which of the following is true regarding bulk transport? ATP is required to pump molecules against the concentration gradient Bulk transport is an example of passive transport Transport of large quantities of materials ATP changes the shape of a protein channel during active transport
Which feature is typical of primary active transport? The transport protein must cross to the correct side of the membrane before the solute can bind to it. The transport protein is irreversibly phosphorylated as transport takes place. The transport protein catalyzes the conversion of ADP to ATP. The solute moves against the concentration gradient. A concentration gradient provides the energy to move substances against their concentration gradient
The transport of a certain molecule exhibits the following characteristics: (1) The molecule moves down its concentration gradient; (2) at concentrations above a given level, there is no increase in the rate of transport; and (3) cellular energy is not required for transport to occur. Which type of transport process is at work?
Active transport must function continuously because__________.a. plasma membranes wear outb. cells must be in constant motionc. facilitated transport opposes active transportd. diffusion is constantly moving the solutes in the other direction
Which substance(s) can be moved across membranes from regions where they are less concentrated to regions where they are more concentrated using ATP or another energy source? water oxygen carbon dioxide sodium and glucose animals are unable to move any substances across membranes against their concentration gradients transporter proteins that use ATP can move all of these molecules against their concentration gradients
The oxygen we breathe crosses to the plasma membrane in our lungs blood capillaries using this transport process. simple diffusion facilitated passive transport active transport endocytosis exocytosis