1 SEM CARDLESS ACC W/RAVEN TEXT
12th Edition
ISBN: 9781265321062
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 5, Problem 3U
The transmembrane domain of an integral membrane protein
a. is composed of hydrophobic amino acids.
b. often forms an α-helical structure.
c. can cross the membrane multiple times.
d. All of the choices are correct.
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Students have asked these similar questions
Ion channels are formed by a particular kind of membrane protein that allows the passage of a specific ion (or ions) under certain conditions. This type of protein is most likely a(n)
a. peripheral membrane protein with additional hydrophobic domains
b. integral membrane protein with a transmembrane domain
c. a cholesterol-like molecule that is positioned in the phospholipid bilayer
d. membrane phospholipid with hydrophilic head group
e. soluble enzyme anchored to a scaffolding protein on the cytoplasmic side of the plasma membrane
What is the primary characteristic of peripheral membrane proteins?
A: They cannot be post-translationally modified.
B: They span the entire lipid bilayer, sometimes multiple times.
C: Detergents or nonpolar solvents are necessary to remove them from the lipid bilayer.
D:Weak intermolecular forces keep them attached to the lipid membrane.
Membrane proteins perform the following functions EXCEPT one. Which
One?
A. form the glycocalyx
B. act as receptor proteins
C. form pores to allow the passage of small solutes
D. behave as enzymes.
Chapter 5 Solutions
1 SEM CARDLESS ACC W/RAVEN TEXT
Ch. 5.1 - Prob. 1LOCh. 5.1 - Explain the fluid mosaic model of membrane...Ch. 5.2 - List the different components of phospholipids.Ch. 5.2 - Prob. 2LOCh. 5.2 - Prob. 3LOCh. 5.3 - Illustrate the functions of membrane proteins.Ch. 5.3 - Prob. 2LOCh. 5.3 - Prob. 3LOCh. 5.4 - Compare simple diffusion and facilitated...Ch. 5.4 - Prob. 2LO
Ch. 5.4 - Prob. 3LOCh. 5.5 - Prob. 1LOCh. 5.5 - Prob. 2LOCh. 5.5 - Prob. 3LOCh. 5.6 - Distinguish between endocytosis and exocytosis.Ch. 5.6 - Illustrate how endocytosis can be specific.Ch. 5 - According to the fluid mosaic model, membranes are...Ch. 5 - Prob. 2IQCh. 5 - The fluid mosaic model of the membrane describes...Ch. 5 - What chemical property characterizes the interior...Ch. 5 - The transmembrane domain of an integral membrane...Ch. 5 - The specific function of a membrane within a cell...Ch. 5 - The movement of water across a membrane is...Ch. 5 - Prob. 6UCh. 5 - Which of the following is NOT a mechanism for...Ch. 5 - A bacterial cell that can alter the composition of...Ch. 5 - What variable(s) influence(s) whether a nonpolar...Ch. 5 - Which of the following does NOT contribute to the...Ch. 5 - How are active transport and coupled transport...Ch. 5 - A cell can use the process of facilitated...Ch. 5 - figure 5.5 describes a classic experiment...Ch. 5 - Each compartment of the endomembrane system of a...Ch. 5 - The distribution of lipids in the ER membrane is...
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- Which of the following is NOT a function of membrane proteins? a.Regulate the passage of ions b.Act as carrier molecules for various solutes c.Act as anchors or stabilizers for the cell membrane d.Storage of cellular nutrientsarrow_forwardTransmembrane proteins span the width of the cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane. Although these proteins have different specific functions, they all -- a. help the cell interact with its external environment b. stop chemical reactions within the cell c. synthesize molecules that signal other cells d. remove large waste particles from the cytoplasm of the cell.arrow_forwardProtein X is an unknown membrane protein found in erythrocytes that cannot be extracted from plasma membranes using a concentrated salt solution but can be extracted by detergents. What type of membrane protein is protein X? O A. Protein X is an integral membrane protein. O B. Protein X is an amphitrophic membrane protein. OC. Protein X could be a peripheral membrane protein or an integral membrane protein. D. Protein X is a peripheral membrane protein. O E. Protein X could be a peripheral membrane protein or an amphitrophic membrane protein.arrow_forward
- In the plasma membrane, form(s) the lipid bilayer,determine(s) the fluid nature of the membrane, andmainly determine(s) the function of the membrane.a. phospholipids, cholesterol, proteinsb. phospholipids, proteins, cholesterolc. proteins, cholesterol, phospholipidsd. cholesterol, phospholipids, proteinse. cholesterol, proteins, phospholipidsarrow_forwardIntegral membrane proteins can exist as all of the following, except: a. A single helix b. A beta barrel A single beta strand d. A group of seven helices C.arrow_forwardMembrane proteins play the following roles: Select one: a. All of the answers b. Enzymes c. Cell communication d. Transportarrow_forward
- a. integral memebrane protein that crosses membrane multiple time b. lipid-linked membrane proteins c. peripheral memebrane protein d. integral memebrane protein that crosses membrane incearrow_forwardThe 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_forwardWhich plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipidarrow_forward
- Which of the following can most easily pass through the phospholipid bilayer of the cell plasma membrane without the involvement of proteins? A. small non-polar molecules B. small polar molecules C. large non-polar molecules D. large polar moleculesarrow_forwardWhich of the following does not apply to a transmembrane receptor? a. It lacks ER signal sequence. b. It contains one or more hydrophobic stop-transfer sequence. c. It is important for cells to receive and transmit extracellular signals. d. It is an example of integral membrane protein.arrow_forward+H₂N-CH-COO™ 1 CH₂ I CH₂ 1 CH₂ I +H₂N-CH₂ A. amino acid D O amino acid B amino acid C O amino acid A +H₂N-CH-COO™ 1 amino acid E C=O B. Of the four amino acids shown, this amino acid would most likely be located in the transmembrane domain of an integral membrane protein. +H₂N-CH-COO™ 1 CH₂ 1 OH C. +H₂N-CH-COO™ I CH H₂C CH₂ D.arrow_forward
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