3. In the space below, draw a model of diffusion, facilitated diffusion and activetransport.Include an example of an appropriate compound for each figure.outinDiffusionoutinFacilitated DiffusionoutinActive Transport

Human body is dynamic as there is continuous exchange and transport of materials from one cell to…

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3. In the space below, draw a mo transport. Include an example of an appr out in Diffusion out in

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 5UC

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Question

3. In the space below, draw a model of diffusion, facilitated diffusion and active
transport.
Include an example of an appropriate compound for each figure.
out
in
Diffusion
out
in
Facilitated Diffusion
out
in
Active Transport

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The principal force driving movement in diffusion is______. a. temperature b. particle size c. concentration gradient d. membrane surface area
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.
A characteristic of carrier molecules in a primary active transport pump is that: a. they cannot transport a substance and also hydrolyze ATP. b. they retain their same shape as they perform different roles. c. their primary role is to move negatively charged ions across membrances. d. they move Na+ into a neural cell and K+ out of the same cell. e. they act to establish an electrochemical gradient.
25.
1. List the differences between passive diffusion and facilitated diffusion.
1. Define osmosis, simple diffusion, facilitated diffusion. 2.. Identify why each of these is a form of passive transport. 3. Give examples of each type of passive transport.
1. Circle all of the following that are examples of diffusion. Explain why each is an example of diffusion. a. water moving through a hose c. the smell of chocolate chip cookies d. a rock sinking in a lake e. haze in the sky from a wildfire b. a drop of ink spreading through water F. coffee dripping through a filter.
The comparison of the simple diffusion, facilitated diffusion and active transport are shown in the table below: * Which comparisons are TRUE? Simple Diffusion Facilitated Diffusion Active Transport I Require ATP Does not require ATP Require ATP II Does not involve a Involve a transport Involve a transport transport protein protein protein From a region of higher III From a region of higher concentrațion of substance to a region of lower concentration of From a region of lower concentration of concentration of substance to a region of lower concentration of substance. substance to a region of higher concentration of substance. substance. O I and II only I and III only O Il and III only O I, Il and III
Which of the following statements is correct about passive facilitated diffusion? (select all that apply) V It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient). O It requires a transport protein. O It requires an expenditure of energy by the cell. O 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). O It involves movement of molecules up a concentration gradient and requires a transport protein.
1. The specific molecule that pass through the cell membrane by osmosis . *2. What is one characteristic of a substances that can pass through the cell membrane by simple diffusion?3. A type of active transport that uses the energy stored in the movement of one molecule along its concentration gradient to move another substances against their own gradients.4. The source of energy for the conformational change of membrane proteins in primary active transport.
17. Muscle. Contractions which move the body depend heavily on diffusion. Why do we have difficulty moving our fingers etc. when they are cold ?
Provide 2 examples of Diffusion, Osmosis, and Semi-Permeable Membrane (1 from the "Diffusion Through a Membrane" lab and 1 from any biological situation) and explain how those examples illustrates the concept.