BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 7RQ
A scientist compares the plasma membrane composition of an animal from the Mediterranean coast with one from the Mojave Desert. Which hypothesis is most likely to be correct?
- The cells from the Mediterranean coast animal will have more fluid plasma membranes
- The cells from the Mojave Desert animal will have a higher cholesterol concentration in the plasma membranes
- The cells’ plasma membranes will be indistinguishable
- The cells from the Mediterranean coast animal will have a higher glycoprotein content, while the cells from the Mojave Desert animal will have a higher lipoprotein content.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Below are listed molecules with different chemical characteristics. Knowing that all molecules will eventually diffuse across a phospholipid bilayer, select the list that most accurately predicts the relative rates of diffusion of these molecules (fastest to slowest) across a biological membrane.
alanine, propanol, sodium, estrogen
sodium, propanol, alanine, estrogen
estrogen, propanol, sodium, alanine
estrogen, propanol, alanine, sodium
Which of the following describes the function of cholesterols in plasma membranes to help regulate
cell transport?
Cholesterols are mainly responsible for cell signaling and cell recognition.
Cholesterols act as fluidity buffer that make the membranes more fluid at higher
B)
temperatures and less fluid at lower temperatures.
Cholesterols act as fluidity buffer that make the membranes less fluid at higher
temperatures and more fluid at lower temperatures.
Cholesterols in the phospholipid bilayer increase the membrane's permeability to ions and
small molecules.
Some antibiotics act as carriers that bind an ion on one side of a membrane, diffuse through the membrane, and release the ion
on the other side. The graph shows the conductance of a lipid-bilayer membrane with a carrier antibiotic as a function
of temperature.
Conductance
40
39
38
Temperature (°C)
37
36
What can you conclude about the effect of a carrier antibiotic on the conductance of the lipid-bilayer membrane?
A carrier antibiotic decreases the conductance of a lipid bilayer, regardless of temperature.
A carrier antibiotic can shuttle ions across a membrane only when the lipid bilayer is quite rigid.
A carrier antibiotic increases the conductance of a lipid bilayer, regardless of temperature.
O A carrier antibiotic can shuttle ions across a membrane only when the lipid bilayer is highly fluid.
Chapter 5 Solutions
BIOLOGY 2E
Ch. 5 - Figure 5.12 A doctor injects a patient with what...Ch. 5 - Figure 5.16 Injecting a potassium solution into a...Ch. 5 - Figure 5.19 If the pH outside the cell decreases,...Ch. 5 - Which plasma membrane component can be either...Ch. 5 - Which characteristic of a phospholipid contributes...Ch. 5 - What is the primary function of carbohydrates...Ch. 5 - A scientist compares the plasma membrane...Ch. 5 - Water moves via osmosis. throughout the cytoplasm...Ch. 5 - The principal force driving movement in diffusion...Ch. 5 - What problem is faced by organisms that live in...
Ch. 5 - In which situation would passive transport not use...Ch. 5 - Active transport must function continuously...Ch. 5 - How does the sodium-potassium pump make the...Ch. 5 - What is the combination of an electrical gradient...Ch. 5 - What happens to the membrane of a vesicle after...Ch. 5 - Which transport mechanism can bring whole cells...Ch. 5 - In what important way does receptor-mediated...Ch. 5 - Many viruses enter host cells through receptor-...Ch. 5 - Which of the following organelles relies on...Ch. 5 - Imagine a cell can perform exocytosis, but only...Ch. 5 - Why is it advantageous for the cell membrane to be...Ch. 5 - Why do phospholipids rend to spontaneously orient...Ch. 5 - How can a cell use an extracellular peripheral...Ch. 5 - Discuss why the following affect the rate of...Ch. 5 - Why does water move through a membrane?Ch. 5 - Both of the regular intravenous solutions...Ch. 5 - Describe two ways that decreasing temperature...Ch. 5 - A cell develops a mutation in its potassium...Ch. 5 - Where does the cell get energy for active...Ch. 5 - How does the sodium-potassium pump contribute to...Ch. 5 - Glucose from digested food enters intestinal...Ch. 5 - The sodium/calcium exchanger (NCX) transports...Ch. 5 - Why is it important that there are different types...Ch. 5 - Why do ions have a difficult time getting through...
Additional Science Textbook Solutions
Find more solutions based on key concepts
A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius...
College Physics
Define histology.
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
In cats, tortoiseshell coat color appears in females. A tortoiseshell coat has patches of dark brown fur and pa...
Genetic Analysis: An Integrated Approach (3rd Edition)
Your bore cells, muscle cells, and skin cells look different because a. different kinds of genes are present in...
Campbell Essential Biology (7th Edition)
Define histology.
Fundamentals of Anatomy & Physiology (11th Edition)
Fibrous connective tissue consists of ground substance and fibers that provide strength, support, and flexibili...
Human Biology: Concepts and Current Issues
Knowledge Booster
Learn more about
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
- The tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobicarrow_forwardGlycolipids in the plasma membrane are located at: 1.Inner leaflet of the plasma membrane 2.The outer leaflet of the plasma membrane 3.Evenly distributed in the inner and outer leaflets 4.It varies according to cell typesarrow_forwardBacteria can change the number of saturated and unsaturated lipids and then plasma membrane if a membrane is too solid it will not allow proteins to flow if a member is to loose it will not held together, what should bacteria do to the relative amount of saturated and unsaturated lipids in the plasma membrane if the bacteria moves from 25° to 37° . Consider what happens to butter when the temperature increases.arrow_forward
- What is the role of lysozyme and a low ionic strength extraction buffer? Select all that apply. Cells absorb water from a low ionic strength extraction buffer, by osmosis, swell and lyse, releasing their contents Lysozyme breaks down bonds in the cellulose cell wall of plants, weakening the structure Cells release water into a low ionic strength extraction buffer by osmosis, shrink and lyse, releasing their contents Lysozyme is an enzyme found in lysosomes in cells Lysozyme breaks down bonds in the peptidoglycan cell wall of bacteria, weakening the structure Lysozyme is an antibiotic found in tears, saliva, human milk and mucus.arrow_forwardWhat is the role of cholesterol in the cell membrane? It converts cis bonds of fatty acids to trans. It allows for the formation of micelle structures. It attracts to the polar phospholipid heads. It reduces membrane fluidity.arrow_forwardThe primary function of the kidney is to exchange molecules across a membrane between the blood and the urine. One type of kidney cell has a basic rectangular shape, except for a single surface, which is lined with tiny, finger-like projections that extend into the surrounding extracellular space. Which of the following best explains the advantage these projections provide the cell? The projections increase the selectivity of the membrane because the small size of the projections limits the number of transport proteins that can be embedded in the membrane. The projections increase the volume of the cell without affecting the surface area, which increases the metabolic needs of the cell. The projections increase the surface area–to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment. The projections increase the speed at which an individual molecule can move,…arrow_forward
- Which of the following is a true statement? Sphingolipids contain 2 hydrophobic, acyl chains Phospholipids contain 3 hydrophobic acyl chains Sphingolipids are completely no-polar, hydrophobic molecules The different types of phospholipids do not have different physical properties when in the membranearrow_forwardmultiple choicearrow_forwardWhich of the following statements are TRUE about the phospholipid bilayer? Select all that apply. Integral proteins have at least one part touching the inner 'tails' of the membrane. Peripheral proteins span the entire membrane. Cholesterol can be used to make the membrane more OR less fluid, depending on the temperature. Glycolipids and glycoproteins face the inside of the cell.arrow_forward
- Which of the following statements are correct about how the complex biological matrix of the cell may affect protein folding, stability and function (select all that appy)? A. ATP tends to "bounce" along the surfaces of many proteins without forming a stable complex B. Proteins make up approximately 30% of the total volume of the cytoplasm in a typical cell C. Compettition between drug molecules and metabolites in the cytoplasm may cause unexpected drug side effects not seen with individual proteins in solution. D. Large protein complexes move faster through the cytoplasm than small metabolites. E. Complex intercations between proteins in the cell may significantly destabilize a protein compared to the isolated protein in waterarrow_forwardDescribe the movement of the blue molecule and explain why this is considered passive transport.arrow_forwardWhat is the order of the molecules on the following list according to their ability to diffuse through a lipid bilayer, beginning with the one that crosses the bilayer most readily. 1. Ca²+ 2. CO₂ 3. Ethanol 4. Glucose 5. RNA 6. H₂O A. Ethanol, Glucose, CO₂, H₂O, RNA, Ca²+ B. CO₂, Ethanol, Glucose, H₂O, Ca²+, RNA C. RNA, Glucose, Ethanol, H₂O, CO₂, Ca²+ D. Ca²+, CO₂, H₂O, Ethanol, Glucose, RNA *Recall that RNA stands for ribonucleic acids, and acids are negatively charged molecules in solutionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license