Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 3, Problem 13RQ
The principal force driving movement in diffusion is______.
a. temperature
b. particle size
c. concentration gradient
d. membrane surface area
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For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag
A. Passive Diffusion
B.Faciliated Diffusion
C.Active Transport
The main force driving movement in diffusion across membranes is due to
A. concentration gradients
B. Size of the molecules
C. Membrane surface area
D. Temperature Question
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
Chapter 3 Solutions
Concepts of Biology
Ch. 3 - Figure 3.7 What structures does a plant cell have...Ch. 3 - Figure 3.13 Why does the cis face of the Golgi not...Ch. 3 - Figure 3.22 A doctor injects a patient with what...Ch. 3 - When viewing a specimen through a light...Ch. 3 - The ____________ is the basic unit of life. a....Ch. 3 - Which of these do all prokaryotes and eukaryotes...Ch. 3 - A typical prokaryotic cell ________ compared to a...Ch. 3 - Which of the following is found both in eukaryotic...Ch. 3 - Which of the following is not a component of the...Ch. 3 - Which plasma membrane component can be either...
Ch. 3 - The tails of the phospholipids of the plasma...Ch. 3 - Water moves via osmosis _______. a. throughout the...Ch. 3 - The principal force driving movement in diffusion...Ch. 3 - Active transport must function continuously...Ch. 3 - What are the advantages and disadvantages of...Ch. 3 - Describe the structures that are characteristic of...Ch. 3 - In the context of cell biology, what do we mean by...Ch. 3 - Why is it advantageous for the cell membrane to be...Ch. 3 - Why does osmosis occur?Ch. 3 - Where does the cell get energy for active...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement? A. Exact concentration of solution is not given B. Character of semi permeable membrane is not given C. The flow of solution is not possible through semi permeable membrane D. All are incorrectarrow_forwardWhat is the Description and Examples in the body of these Cell transport? Explain in 2-3 sentencesDescription:Examples in the body: a. Diffusion b. Osmosis c. Facilitated Diffusionarrow_forwardWhich of the following is incorrect regarding facilitated diffusion?a. It is a passive process.b. It allows the movement of molecules from areas of lowconcentration to areas of high concentration.c. It may use either channel or carrier proteins.d. It allows the rapid transport of glucose across the membrane.arrow_forward
- The image illustrates passive and active transport across the cell membrane. (Use the diagram to answer questions A-D) A. 1. Which section represents facilitated diffusion?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not?5. What type of solute molecules may be moved by this type of transport? B. 1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not? C. 1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport? D. Which of these sections are considered passive transport? Explain.arrow_forwardWhich of these processes are membrane-crossing mechanisms that require no energy input? Select all that apply. A. Osmosis B. Facilitated diffusion C. Sodium-potassium pumparrow_forwardWhich of the statements about diffusion are true? Select all that apply. A. Solutes diffuse from a region of higher concentration to a region of lower concentration. B. Negatively charged solutes diffuse toward regions of positive charge. C. Positively charged solutes diffuse toward regions of positive charge. D. Solutes diffuse from regions of low concentration to regions of high concentration. E. Lower temperatures will slow rates of diffusion.arrow_forward
- Ion pumps and phagocytosis are both examples of________.a. endocytosisb. passive transportc. active transportd. facilitated diffusionarrow_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_forwardWhich of these statements about carrier-mediated facilitated diffusion is true? a. It uses cellular ATP. b. It is used for cellular uptake of blood glucose. c. It is a form of active transport. d. None of these are true.arrow_forward
- Choose among the following the two properties of a particle influence whether it can permeate the plasma membrane? A. lipid solubility of the particle B. particle mass C. particle size D. water solubility of the particle E. particle color F. particle weightarrow_forwardThe image illustrates passive and active transport across the cell membrane. (Use the diagram to answer questions A-C) A. 1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not? B. 1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport? C. Which of these sections are considered passive transport? Explain.arrow_forwardDuring 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 reachedarrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license