Membrane carriers resemble enzymes except for the fact that carriersa. are not proteins.b. do not have binding sites.c. are not selective for particular ligands.d. change conformation when they bind a ligand.e. do not chemically change their ligands.

Membrane carriers resemble enzymes except for the fact that carriersa. are not proteins.b. do not have binding sites.c. are not selective for particular ligands.d. change conformation when they bind a ligand.e. do not chemically change their ligands.

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 3RE

See similar textbooks

Related questions

Q: Draw a sketch of a graph showing a complex AHP consisting of a first component AHP, an ADP, and a…

A: AHP is the afterhyperpolarization while ADP is afterdepolarization. In AHP the membrane potential…

Q: How much time would it take ATP to diffuse the following distances? (Use the equation for mean…

A: The diffusion coefficient D for ATP (at 25 o C) =3.54 cm2/s. The mean square displacement equation…

Q: Given these three statement- two of which are truths and one is a lie. Which of the following…

A: A and B are true while statement C is a lie.

Q: OProtein channels can embed in the cell membrane because they have: a. A hydrophobic central region…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Which is not a function of plasma membrane proteins? a. Recieving signals from outside the cell or…

A: The plasma membrane has the primary function of shielding the cell from its surroundings. Composed…

Q: The negatively charged intracellular environment and resulting resting membrane potential of neurons…

A: When a cell is not stimulated, its resting membrane potential is defined as the electrical potential…

Q: Enzyme(s) associated with the cytosolic face of the plasma membrane directly activated by G-proteins…

A: GPCRs are the largest and most diverse groups of membrane receptors. They convert extracellular…

Q: a. Molecule X is a soluble protein that is secreted in response to extracellular signal Y. Which…

A: Sorting is an important process in the transportation of the signalling molecules from one cell to…

Q: Proteins of the plasma membrane carry out all of the following functions except Select one: a.…

A: The membrane protein do all of the following functions above except

Q: Which of the following does NOT generally lead to a phosphate cascade? A. active transport pumps…

A: In our body, several types of cellular process occurs, which involves the cellular signalling…

Q: Explain the mechanism of action of the Na+/K+ pump. If these pumps became non-functional due to a…

A: Jens Christian Skou, a Danish physicist who won the Nobel Prize in 1997 for his work on the…

Q: Proteins in the plasma membrane are often the target of medicines.Discuss why you think this is the…

A: The plasma membrane which are present on consist of integral proteins or the peripheral proteins.…

Q: You apply a drug to neurons that blocks the KCC transporter. As a result, you have a rise in…

A: These are integral membrane proteins, typically formed as assemblies of several individual…

Q: The proteins that constantly transport sodium ions outside the membrane is called A. Membrane pump…

A: Hi, thank you for your question. Since we are entitled to answer only one question at a time, I…

Q: Cells transporting substances across their membranes is essential. Choose TWO of the following types…

A: Cell transport is the movement of materials across the cell membrane. It includes passive and active…

Q: Compare and contrast how an ion (e.g., Na+) is transported across the plasma membrane versus how a…

A: In the case of active transport, Na+ is transported via the sodium-potassium pump, which moves Na+…

Q: Sugars are transported in symport with Na+. Na+ upon some time accumulates causing the need to…

A: Sugar transported in symport with Na+ : Glucose

Q: Briefly explain how integral membrane proteins can participate in intracellular signaling.

A: The plasma membrane, also well known as the cell membrane is the membrane that separates the…

Q: To what part of a receptor molecule does a chemicalsignal attach? Explain how a chemical signal can…

A: A receptor protein has receptor sites on the surface that touches the extracellular area. These…

Q: Which statement are true? Constitutive secretion is the default pathway, primarily used to restore…

A: In eukaryotes, secretory pathway are used to send lipids and proteins to the plasma membrane. There…

Q: The sodium Na+/Glucose symport moves sodium and glucose across the plasma membrane. A) Describe was…

A: "Cells" communicate via their own chemical signaling system. Different chemicals, such as hormones…

Q: The membrane potential across a cell membrane can be thought of as a "blend" or weighted average of…

A: The membrane potential can be described as a potential gradient that enables the unidirectional flow…

Q: A signaling pathway is show below answer the following questions related to this pathway. What is…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Ion transporters are “linked” together—not physi-cally, but as a consequence of their actions. For…

A: Introduction Our body contains different types of ions such as Sodium, Potassium, Calcium, Chloride,…

Q: BRIEFLY DESCRIBE the difference between open channels and gatéś channels Ih the biological membranes…

A: Open channel and gate channels are types of transmembrane channel proteins that help to transport…

Q: ted fatty acids? why or why not, explain?

A: Plasma membrane Plasma membrane is a dynamic structure and forms the external boundary of cell. it…

Q: 1. Which properties are characteristic of ion channels? a. They are usually lipids. b. They exist on…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Fill in the blank: As a result of an additive phenomenon called _______________________, the…

A: An action potential can be defined as a quick rise and a subsequent decrease in voltage or membrane…

Q: What is an example of receptor/ligand binding? O Simple diffusion O A hormone binding to a receptor…

A: Simple diffusion : a molecule simply dissolves in the phospholipid bilayer, diffuses across it. No…

Q: A change in membrane potential which is due to ion influx or efflux in a single region with the ions…

A: Membrane potential is a key aspect of cellular function and cell-to-cell signaling, and thereby…

Q: Which of the following is not a function of the integral membrane proteins? O a. Acting as receptors…

A: Integral membrane protein that functions as receptors includes insulin receptor. They are actively…

Q: What is the resting membrane potential

Q: What are the three types of coated vesicles involved in membrane trafficking. Name three types and…

A: The three types of coated vesicles involved in membrane trafficking are clathrin-coated,…

Q: a) Give the two main membrane proteins. b) State a function each of the mentioned protins.

A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering the first…

Q: Below find the structures for ibogaine and cocaine. Ibogaine and cocaine inhibit the dopamine active…

A: A secondary active transport couples the uphill (against the concentration gradient) transport of a…

Q: The sodium–potassium pumpa. helps establish an electrochemical gradient across the membrane.b.…

A: The electrochemical gradient can be defined as the gradient of electrochemical potential, usually…

Q: 1. Which properties are characteristic of ion channels? a. They are usually lipids. b. They exist on…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Name and define (briefly) two of the different possible mechanisms of a plasma membrane proteins

A: Proteins form an association with the cell membrane in various ways: The intrinsic proteins are…

Q: b) Complete the following flow chart| (a membrane phospholipid)_ Hydrolysed by phospholipase C, to…

A: Inositol Triphosphate is a second messenger in the IP3 - DAG pathway. This pathway regulates many…

Q: Some cytoplasmic kinases, enzymes that phosphorylate substrates at the expense of ATP, bind to…

A: Signal Transduction A basic process involving the conversion of a signal from outside the cell to a…

Q: Pancreatic beta cells secrete the protein hormone insulin in response to various signals. Which of…

A: Pancreas has dual function. It secretes digestive enzymes as well as hormones.

Q: Membrane proteins play the following roles: Select one: a. All of the answers b. Enzymes c. Cell…

A: Membrane proteins are the proteins that are present in the cell/organelles membranes. Depending on…

Q: GABA receptors play an essential role in neurotransmission in the central nervous system. In…

A: Gamma-aminobutyric acid (GABA) is a neurotransmitter amino acid used by the brain to decrease brain…

Q: A cell biologist is performing an experiment using the voltage clamp method in which they are…

A: Voltage Clamp Techniques are an electrophysiological technique to measure ion's current across the…

Concept explainers

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.

Question

Membrane carriers resemble enzymes except for the fact that carriers
a. are not proteins.
b. do not have binding sites.
c. are not selective for particular ligands.
d. change conformation when they bind a ligand.
e. do not chemically change their ligands.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.

Similar questions

Na+ moves from high to low concentration, across the plasma membrane, through a protein channel that is permenantly open. Which statement is true about this process? a. It does not require ATP b. It is a form of active transport c. Movement is against the concentration gradient of Na+ d. The channel probably allows many different molecules and ions to cross
Compare channels and transporters. Channels are __________, and transporters are __________. Select one: a. slower, more selective b. Less selective, slower c. faster, less selective d. slower, less selective e. more selective, faster
The sodium–potassium pumpa. helps establish an electrochemical gradient across the membrane.b. concentrates sodium on the outside of the membrane.c. uses a carrier protein and chemical energy.d. is present in the plasma membrane.e. All of these are correct.
The negatively charged intracellular environment and resulting resting membranepotential of neurons and muscle cells fundamentally develops because of:A. the presence of a high extracellular potassium concentration.B. the presence of negatively charged intracellular proteins.C. the high electron concentration found in the extracellular fluidsD. the presence of voltage-gated-sodium channells
The inside negative membrane potential is a force that helps support... a.) the movement of (neutral) nonelectrolytes into the cell b.) the movement of cations into the cell c.) the movement of (neutral) nonelectrolytes out of the cell d.) the movement of anions into the cell
Assume that a membrane permeable to Na+ but not to Cl- separates two solutions. The concentration of sodium chloride on side 1 is higher than on side 2. Which of the following ionic movements would occur? a. Na+ would move until its concentration gradient is dissipated (until the concentration of Na+ on side 2 is the same as the concentration of Na+ on side 1). b. Cl- would move down its concentration gradient from side 1 to side 2. c. A membrane potential, negative on side 1, would develop. d. A membrane potential, positive on side 1, would develop. e. None of the preceding is correct.
Among the membrane transporters, the channels require energy and therefore are involved in active transport. * D. Disagree, because channels are not proteins and therefore are not involved in active tranport. A. Agree, because channels are associated with H+-ATPase. B. Disagree, because the pumps are the ones involved in active transport. C. Agree, because channels are proteins involved in active transport.
Inhibition of the Na,K-ATPase might reasonably result in which of the following: a.) gradual cellular accumulation of K+ b.) gradual decrease in cytoplasmic Na+ c.) cell shrinkage d.) hyperpolarization of the membrane potential e.) reduced activity of many secondary active transporters
Draw a sketch of a graph showing a complex AHP consisting of a first component AHP, an ADP, and a second component AHP before repolarization to resting membrane potential
Which 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.
Describe the difference between carrier proteins and channel proteins. What is required for the passive transport of molecules through these membrane proteins?
How are vesicles with neurotransmitter transported to the synaptic cleft? A. Retrograde, slow transport. B. Anterograde, slow transport. C. Retrograde, fast transport. D. Anterograde, fast transport.