Which of the following is true of exocytosis, but not true of facilitated diffusion? Select all that apply. A) Involves transport vesicles B) May be used to move a hydrophilic substance to the other side of the membrane C) Requires energy D) Always moves a substance down its concentration gradient E) Always results in a substance exiting from the cell .

Which of the following is true of exocytosis, but not true of facilitated diffusion? Select all that apply. A) Involves transport vesicles B) May be used to move a hydrophilic substance to the other side of the membrane C) Requires energy D) Always moves a substance down its concentration gradient E) Always results in a substance exiting from the cell .

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 1TAHL: Which of the following methods of transport is being used to transfer the substance into the cell in...

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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.
Why is it advantageous for the cell membrane to be fluid in nature?
Distinguish between the following pairs of terms: a. diffusion; osmosis b. passive transport; active transport c. endocytosis; exocytosis
Which of the following statements is correct about passive diffusion? Select one: A) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient). B) It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient). C) It requires an expenditure of energy by the cell. D) It may require a transport protein. E) It involves movement of molecules down a concentration gradient and may require a transport protein.
Factors that affect the rate of diffusion through a membrane include all of the following EXCEPT: a)membrane surface area. b) molecular weight. c) availability of energy. d) steepness of concentration gradient.
Match the definitions with the words: Direct Diffusion, Facilitated Transport, Active Transport a) passive movement of molecules through a protein channel, down the solute's concentration gradient b) using a vesicle to move many molecules into a cell c) movement of molecules through a protein transporter, requires ATP, against the solute's concentration gradient
Which of the following statements is correct about diffusion? a) It is an active process in which molecules move from a region of lower concentration to one of higher concentration. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration. c) it requires integral proteins d) It is a rapid process
In terms of their effect on the rate of diffusion, which of the following is the odd one out? a) increasing surface area of the membrane b) increasing the permeability of the membrane c) increasing the concentration gradient of the diffusing molecule d) increasing the molecular weight of the diffusing molecule
What do facilitated diffusion, primary active transport and secondary active transport have in common? a) their ability to transport molecules depends on a membrane protein b) they utilize energy in the form of ATP to move molecules c) they move small, lipophilic molecules across the membrane d) they can move molecules against a concentration gradient
Diffusion means that a) smaller particles move across the membrane faster. b) all particles cross a membrane. c) particles move around until they are distributed evenly. d) particles stop when they are halfway across the membrane.
Compare and contrast the following methods of a passing cell membrane in terms of movement with respect to the concentration gradient, use of ATP, and the use of transporters with examples. (Simple) diffusion vs Facilitated diffusion
Which out of the following is not a mediated transport?a) Facilitated diffusionb) Primary active transportc) Secondary active transportd) Simple diffusion