Draw pictures and use words to explain the three functions listed below: 1. Cholesterol decreases membrane...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Draw pictures and use words to explain the three functions listed below: 1. Cholesterol decreases membrane fluidity at high temperatures. Explain how the addition of cholesterol to the lipid bilayer would decrease membrane fluidity at high temperatures. 2. Cholesterol prevents crystallization of hydrocarbons in the membrane at low temperature. Explain how the addition of cholesterol to the lipid bilayer prevents crystallization of the alkyl chains. 3. Sterols decreases the permeability of the cell membrane to small water- soluble molecules. Explain how the addition of cholesterol to the lipid bilayer would decrease the permeability of the bilayer to water and water- soluble compounds. Cholesterol in Cell Membranes The cholesterol molecule inserts itself in the membrane because it also has some amphiphilic character. . . Circle the polar end. Put a box around the non-polar end. The cholesterol molecule inserts itself in the membrane with the same orientation as the phospholipid molecules. Add a cartoon of the cholesterol to the lipid bilayer below. . ● OO There are several IMFs involved in the insertion of the cholesterol into the phopholipid bilayer of a cell membrane or liposome. For each of the following interactions, circle the predominant IMF. The head:head interaction is: dipole-dipole hydrogen bonding The tail:tail interaction is: a. b. C. d. HO London Dispersion ion-ion London Dispersion Cholesterol (steroid) dipole-dipole hydrogen bonding ion-ion The water:head of the cholesterol interaction is: dipole-dipole London Dispersion hydrogen bonding The water:tails of cholesterol is attractive repulsive ion-ion ion-dipole ion-dipole ion-dipole Draw pictures and use words to explain the three functions listed below: 1. Cholesterol decreases membrane fluidity at high temperatures. Explain how the addition of cholesterol to the lipid bilayer would decrease membrane fluidity at high temperatures. 2. Cholesterol prevents crystallization of hydrocarbons in the membrane at low temperature. Explain how the addition of cholesterol to the lipid bilayer prevents crystallization of the alkyl chains. 3. Sterols decreases the permeability of the cell membrane to small water- soluble molecules. Explain how the addition of cholesterol to the lipid bilayer would decrease the permeability of the bilayer to water and water- soluble compounds. Cholesterol in Cell Membranes The cholesterol molecule inserts itself in the membrane because it also has some amphiphilic character. . . Circle the polar end. Put a box around the non-polar end. The cholesterol molecule inserts itself in the membrane with the same orientation as the phospholipid molecules. Add a cartoon of the cholesterol to the lipid bilayer below. . ● OO There are several IMFs involved in the insertion of the cholesterol into the phopholipid bilayer of a cell membrane or liposome. For each of the following interactions, circle the predominant IMF. The head:head interaction is: dipole-dipole hydrogen bonding The tail:tail interaction is: a. b. C. d. HO London Dispersion ion-ion London Dispersion Cholesterol (steroid) dipole-dipole hydrogen bonding ion-ion The water:head of the cholesterol interaction is: dipole-dipole London Dispersion hydrogen bonding The water:tails of cholesterol is attractive repulsive ion-ion ion-dipole ion-dipole ion-dipole
Expert Answer:
Related Book For
Biochemistry Concepts and Connections
ISBN: 978-0321839923
1st edition
Authors: Dean R. Appling, Spencer J. Anthony Cahill, Christopher K. Mathews
Posted Date:
Students also viewed these chemistry questions
-
Explain the three functions of marketing research. Give example for each.
-
What are and is able to explain the three theoretical approaches to the topic of sexuality. What are important insights provided by the structural-functional, symbolic-interaction, and...
-
What are and is able to explain the three theoretical approaches to the topic of sexuality. What are important insights provided by the structural-functional, symbolic-interaction, and...
-
where a bank's liabilities can be withdrawn in the short-term while its assets are being repaid in the long-term.
-
Describe matters that the auditor must communicate to audit committees of public companies.
-
If estimate overhead is $500, total allocated overhead for the period was $525 and actual overhead for the period was $510, is overhead over or underapplied and by how much?
-
A lot of compensation information is available to employees today on the Web (e.g., www.salary.com), and much of it is inaccurate. How can an organization assure employees that they are fairly...
-
Identify the best answer for each of the following: 1. On July 1, 20X5, Lilydale Hospitals board of trustees designated $200,000 for expansion of outpatient facilities. The $200,000 is expected to be...
-
The graph below is a market demand curve for steaks. $8 A $6 B D C $4 E 0 3 6 Q (Million) a. Clearly label the consumer surplus associated with a market price of $6 using the letters on the graph...
-
Aaron, Deanne, and Keon formed the Blue Bell General Partnership at the beginning of the current year. Aaron and Deanne each contributed $110,000 and Keon transferred an acre of undeveloped land to...
-
Marie Singh is a resident of the republic. She is a nursing sister employed by a private hospital. She commenced working at the hospital on 1 June 2021. Prior to that, she had been unemployed for six...
-
Cathy Thomas, a single mother, has modified AGI of $82,000. In 2019, her daughter begins work on her bachelors degree at an accredited institution. Cathy pays $6,000 in qualified tuition for the...
-
Find the finance charges on a 7.5%, 18-month, single-payment loan when interest is computed using the simple interest method. Find the finance charges on the same loan when interest is computed using...
-
Use the information in the news clip to explain which side of the Laffer curve the Swiss economy is placed. In 2017, Swiss voters rejected the continued funding of the 2020 OldAge and Survivors...
-
What is the efficient number of students? If all colleges are private, how many people enroll in college and what is the tuition? The marginal cost is a constant $6,000 per student per year. The...
-
Medical boards have the authority to regulate the practice of medicine, in part through rulemaking. Technically speaking, administrative agencies cannot make new law through rulemaking. Rather,...
-
Illini Company issued $100,000 three-year 8% convertible bonds on 1/1/2016 for $100,000. Each $1,000 bonds can be converted into 50 shares of Illini's common stock. The fair value of Illini's common...
-
Define deferred revenue. Why is it a liability?
-
Why would phage need to synthesize more cI repressor during establishment of lysogeny, early in infection, rather than in maintenance of the lysogenic state?
-
What is the optimum pH to separate a mixture of lysine, arginine, and cysteine using electrophoresis? Draw the structures of the three amino acids in the protonation state that would predominate at...
-
A 500-mL sample of a 0.100 M formate buer, pH 3.75, is treated with 5 mL of 1.00 M KOH. What is the pH following this addition?
-
Use the data of Problem 3.8 to find the phase differences of the Loewy function for a double bladed rotor where only the distance between the blades are counted. Make the same computations for...
-
Find the sectional moment coefficient taken about the midchord of the Example 3.4. Plot the change with respect to angle of attack. Example 3.4 Find the sectional lift coefficient change for an...
-
An airfoil is given by a parabolic camber line, i.e., \(z_{a}=-\left(a / b^{2} ight) x^{2}\). Find: (i) sectional lift coefficient, (ii) center of pressure, (iii) aerodynamic center, at zero angle of...
Study smarter with the SolutionInn App