What is an example of receptor/ligand binding?O Simple diffusionO A hormone binding to a receptorO None of these is correctFacilitated diffusionO Active transport

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

Answered: What is an example of receptor/ligand…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Epilepsy is a chronic disorder characterized by seizures that result whenneurons in the brain produce excessive action potentials. Channelopathiesare genetic disorders caused by mutations in ion channel genes, whichresult in ion channels that do not function normally. What kind of Na+ orCa2+channelopathies might contribute to epilepsy?
What drives K+ ions through voltage gated channels while funny channels are also open? O pifference in K+ concentration across the PM O pressure potential O Both difference in K+ concentration across the PM and Membrane potential (difference in charge across the membrane) O Osmotic potential O Membrane potential (difference in charge across the membrane)
What type of transport mechanism secretes molecules by fusion of vesicles with the plasma membrane? O receptor-mediated endocytosis O phagocytosis О ехосytosis O endocytosis
cells exchange small molecules and ions are probably connected by tight junctions true or false?
Cardiac muscle cells undergo a great deal of physical stress during contraction in order to pump blood throughout your body. Which of the following would you expect to see present in relatively large numbers within their plasma membranes to counter that physical stress acting like Velcro? O transport proteins O tight junctions O desmosomes O glycolipids O cholesterol
Which of the following statements about ion channels are true? all ion channels are selective for only one species of ion The only way ions can cross the membrane is through the actions of a transporter. ions can flow though the pores of ion channels faster than they can diffuse freely in solution the movement of ions through the pore of an ion channel does not require energy
The binding of sodium ions (Na+) to a membrane protein is one of the first steps in initiation of the sodium-potassium pump that moves these ions across the membrane. The picture shows the inital set up in this process. How does the protein get the energy needed to continue the process of moving the (Na+) across the cell membrane? Membrane Protein ONa+ Inside the Cell A. O O Nat oc Outside the Cell Con Mitochondria will attach to the protein and provide the energy to push the Na+ through the protein. Energy from ADP is released and a channel in the membrane protein permanently B. opens, resulting in the passage of the Nat. Energy produced from the difference in solute concentration on both sides of the O c. membrane pulls the Na+ through the protein. Con с ATP attaches to the protein and releases a phosphate, making energy available to OD. change the shape of the protein and allowing the passage of the Nat.
What causes NMDA receptors to open? Glutamate binding and depolarization of the membrane Glutamate binding O Depolarization of the membrane O GABA binding
27.
If a skeletal muscle has depleted its stores of ATP how will the altered transport properties of the following transporters affect cytosolic ion concentrations (increase, decrease, no change) relative to normal? Skeletal Muscle Cell With Depleted ATP Stores Ion transporter Cytosolic K+ Cytosolic Na+ Cytosolic Ca2+ NKA NCX SERCA
What is a synaptic vesicle? O Itis a membrane-bound package of neurotransmitters located in the pre-synaptic cell. It is a package of excitatory ions located in the post-synaptic cell. O t is a package of inhibitory ions located in the post-synaptic cell. O It is an organelle that stores calcium.
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What is an example of receptor/ligand binding? O Simple diffusion O A hormone binding to a receptor O None of these is correct O Facilitated diffusion O Active transport