Biology: Concepts and Applications (MindTap Course List)
9th Edition
ISBN: 9781285427812
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 5, Problem 12SQ
Summary Introduction
Introduction:
Substances that cannot diffuse through the lipid bilayer cross the cell membrane through the transport proteins embedded in the membrane. The transport proteins are highly specific. Energy is required during movement of a solute against its concentration gradient. The shape of the transport protein is changed by adenosine triphosphate (ATP). This causes the transport protein to release the bound solute to the other side of the membrane.
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Students have asked these similar questions
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 diffusion
The passive non-mediated movement of particles across a membrane driven by pressure is
A. filtration
B. diffusion
C. facilitated diffusion
D. osmosis
E. active transport
F. vesicular transport
The passive, non-mediated movement of particles into or out of a cell following the particle’s concentration gradient is called
A. osmosis
B. vesicular transport
C. filtration
D. diffusion
E. facilitated diffusion
F. active transport
Chapter 5 Solutions
Biology: Concepts and Applications (MindTap Course List)
Ch. 5 - Prob. 1SQCh. 5 - Prob. 2SQCh. 5 - Prob. 3SQCh. 5 - Prob. 4SQCh. 5 - Prob. 5SQCh. 5 - Prob. 6SQCh. 5 - Name one environmental factor that typically...Ch. 5 - Prob. 8SQCh. 5 - Prob. 9SQCh. 5 - Solutes tend to diffuse from a region where they...
Ch. 5 - Prob. 11SQCh. 5 - Prob. 12SQCh. 5 - Immerse a human blood cell in a hypotonic...Ch. 5 - Prob. 14SQCh. 5 - Prob. 15SQCh. 5 - Prob. 1CTCh. 5 - How do you think a cell regulates the amount of...Ch. 5 - The enzyme trypsin is sold as a dietary enzyme...Ch. 5 - Catalase combines two hydrogen peroxide molecules...
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- Active transport of a substance across a membrane requiresa. a gradient b. the expenditure of ATP c. water d. diffusionarrow_forwardActive transport must function continuously because. a. plasma membranes wear out b. not all membranes are amphiphilic c. facilitated transport opposes active transport d. diffusion is constantly moving solutes in opposite directionsarrow_forwardThe energy requiring mediated movement of small particles into or out of a cell up their concentration gradient is called A. diffusion B. facilitated diffusion C. active transport D. osmosis E. vesicular transport F. filtrationarrow_forward
- 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 pumparrow_forwardExplain the process and give an example of each form of cellular transport. a. Passive Diffusion b. Active Transport c. Facilitated Diffusionarrow_forwardThe sodium-potassium pump helps to maintain electrolyte gradients through use of ATP. Which of the following best describes this type of transport? a. osmosis b. passive transport c. diffusion d. active transportarrow_forward
- Proteins like albumin in the blood maintain water inside the blood vessels using A. Osmotic pressure B. Active diffusion C. Active transport D. Diffusionarrow_forwardThe movement of molecules from an area of low concentration outside of the cell membrane to an area of high concentration within a cell membrane is most likely which of the following types of transport? a. exocytosis b. diffusion c. endocytosis d. osmosisarrow_forwardBased on the figure attached, this system represents: a. primary active transport b. passive transport c. non-mediated transport d. secondary active transport e. A and Darrow_forward
- Facilitated transport differs from diffusion in that facilitated diffusiona. involves the passive use of a carrier protein.b. involves the active use of a carrier protein.c. moves a molecule from a low to a high concentration.d. involves the use of ATP molecules.arrow_forwardChoose which substances can pass freely through the plasma membrane A. Gasses B. Charged molecules C. Hydrophobic molecules D. Lions E. Water D. ATParrow_forwardPassive transport mechanism requires both the aid of proteins and the expenditure of cellular energy. While facilitated and active mechanism both needs proteins in order to transport drugs or ions across a membrane channel. * A. Both statements are INCORRECT B. Neither is CORRECT C. Only the 1st statement is INCORRECT D. Only the 2nd statement is CORRECTarrow_forward
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