QUESTION 11 What property of the voltage-gated potassium channels allows K ions to pass? O a. Two polypeptide subunits are synthesized when the membrane is depolarized, allowing K+ ions to pass. O b. Depolarization causes the subunits to temporarily disintegrate so that K* ions can pass through the membrane O c. The voltage-gated potassium channels open when the polypeptide subunits are disinhibited O d. Depolarization causes the four polypeptide subunits specific to the voltage-gated K channel to twist into a shape that allows K ions to pass QUESTION 12 Why does ACh slow the heart rate? O a. It stimulates muscarinic receptors that open potassium channels O b. It stimulates muscarinic receptors that close potassium channels O c. It stimulates nicotinic receptors that open potassium channels O d. It stimulates nicotinic receptors that close potassium channels 4

Q: Which of the following is a genetic disorder resulting in defective assembly of a chloride transport…

A: A genetic disorder is a disease that is caused by a change, or mutation, in an individual's DNA…

Q: inferior surface of a neuron’s plasma membrane at resting membrane potential will have--- A)…

A: We can sense, taste,see and do other activities by the help of signalling system of nervous…

Q: Question 4. Which of the following statements are true of tyrosine kinases? A. They always bind to a…

A: Introduction : Enzymes called tyrosine kinases phosphorylate the amino acid tyrosine on particular…

Q: QUESTION 50 In a signal transduction pathway involving a G protein-coupled receptor, the receptor…

A: Introduction Signal transduction pathway involves the binding of  the extracellular signaling…

Q: QUESTION 56 PDGF 100 740 751 L.. PI3K 50 GAP O GAP 771 protein P-site PTP O 4 1009 O PTP PI3K 740,…

A: Genes store genetic information in the form of DNA, which may be converted into functional proteins…

Q: You inject a large fluorescent dye with a molecular weight >10,000 Da into a cell that is connected…

A: Gap junctions are intercellular channels that allow direct communication between the cytoplasm of…

Q: Question 32 1 pts In the operation of the sodium-potassium ATPase transporter this transporter (or…

A: Step 1 : Step 2 :

Q: Question 4 0/1 pts The bacterial Na+-H+ symporter is a secondary active transport protein that pumps…

A: Approach to solving the question: Detailed explanation:The correct choice is "As a symporter, H+,…

Q: Which of the following is not a potential biological role of the lipid asymmetry of the plasma…

A: The plasma membrane is also known by the name cell membrane. This membrane is found in all the major…

Q: Thinking Question #1 You have been asked to design some drugs for the purposes described below.…

A: Enzymes are the biological catalyst. It has efficiency, specificity, and mode of regulation. It…

Q: Which effect is a response to glucagon secretion? OA. Inhibition of skeletal muscle VLDL transport…

A: Glucagon is a peptide hormone. It is secreted by the pancreatic cells in response to low levels of…

Q: Question 3. Someone conducted a kinetic study on insulin and insulin receptor binding. It is found…

A: The binding affinity can also be determined by the dissociation constant.

Q: Which of the following statements is not correct? +30! -F Membrane Potential (mV) H D. .B -70- A C…

A: The picture is showing the action potential curve. The action potential is generated on receiving…

Q: What is the three ketter code for each peptide (a)  KFYV (b)  ERSC (c)  PIMF The 3-letter code…

A: Amino acids are the fundamental units of proteins. The amino acids are linked together by means of…

Q: Which of the following is a property of signaling for epinephrine, growth hormone, GIP and…

A: Cell communication in biology is referred to as cell signaling which is the ability of a cell to…

Q: QUESTION 13 What is the mechanism by which microtubules can rapidly shrink, or undergo â…

A: Introduction  The cytoskeleton is the intracellular network of the proteins fibers that helps in…

Q: Choose the correct statement. O Two of these are correct O Secondary active transport consists in…

A: Even the process of transport across the cr membrane is governed by the law of thermodynamics .

Q: Question 4. Which of the following statements are true of tyrosine kinases? A. They always bind to a…

A: Tyrosine kinase is a special enzyme that selectively phosphorylates the tyrosine residues. Their…

Q: Predict the effect of a substance that inhibits sodium channels from opening. How might this…

A: Introduction The neuron is the small but important functional unit of the central nervous system…

Q: An advantage of membrane proteins is that they may be released from the membrane in a regulated…

A: Membrane proteins are a family of proteins that are found in biological membranes, whose primary…

Q: Question 1 A new receptor has been discovered in the cells of the human liver. The following…

A: A protein called mitochondrial antiviral-signaling protein (MAVS) is required for innate antiviral…

Q: Digoxin, a toxin derived from the foxglove (shown), can be used to treat heart disorders such as…

A: Digoxin is a sort of cardiovascular glycoside that increases the contraction of the heart by…

Q: Question 35 Which of the following components is attached to lipids and proteins on the…

A: The plasma membrane, also called the cell membrane, is the membrane found in all cells and consists…

Q: iestion 13 of 18 ad and analyze the statements below: The resting membrane potential (RMP) can be…

A: The concentration of sodium ions is always greater than the extracellular fluid which is present…

Q: QUESTION 6 Which of the following statements is correct? -40 -50 -60- DE F -70- A B C -80 - -90 Time…

A: Graded potentials are small changes in membrane potential corresponding to the intensity and…

Q: QUESTION 3 Pumps (select all that apply) O Couple transport against electrochemical gradient to ATP…

A: ---Pumps are kind of protein that is capable of pumping out compounds that could pose a threat to…

Q: The inferior surface of a neuron’s plasma membrane at resting membrane potential will have--- A)…

A: Resting Membrane potential is a state when the cell do not get impulse and is not excited. It is…

Q: Two solutions are separated by a membrane that is impermeable to glucose. Solution A is 5 percent…

A: hypotonic solution is one which have a less solute concentration than surrounding while hypertonic…

Q: - What effect does high temperature have on the fluidity of the plasma membrane?

A: as per our company guidelines we are supposed to answer only first 1 question. Kindly repost other…

Q: The concentration of solutes in Cell X is 13%, but Cell X contains no potassium or magnesium. CelI X…

A: Molecules move across the plasma membrane on the basis of the concentration gradient, from region of…

Q: Describe the role of differential electrical charge across the cell membrane in both non-excitable…

A: Neurons and muscle cells are excitable cells because their membranes are in a polarised state. On…

Q: Which of the following are features of the basement membrane but not the ECM?   A Contains both…

A: Introduction:- The basement membrane (BM) is an extracellular matrix that lines the base of…

Q: Question 6 Which of the following statements about graded potentials and action potentials is true?…

A:

Q: Immediately after an action potential has peaked, which of the following channels will open?

A: A neuron will accept feedback from other neurons and transmit the signal to downstream neurons if…

Q: Question 9. When the rate of loss of actin subunits from the pointed end of an actin filament is…

A: Actins are the microfilaments. It is made up of G sub units. It is found in the muscles.

Q: When a cell membrane potential shifts from -70mV to -90mV we say the membrane has:

A: Neurons typically show a resting membrane potential at -70 mV. This resting potential is disturbed…

Q: Question 47 Which of the following statements best describes the movement of molecules in a cell if…

A: Diffusion is the movement of molecules from an area of high concentration to an area of lower…

Q: In osmosis, water moves from a region of low, low O high, low O high, high O low, high solute…

A: Membrane transport mechanism is a phenomenon which describes how the substances / materials are…

Q: In a voltage clamp: O A. A constant current across the membrane is maintained in order to counter…

A: Difference of ionic potential is present across the membranes. This results in the flow of ions from…

Q: tf we have a cell floating in a solution and the intracellular fluid is measured at 1000.0 mOsm and…

A: Answer: HYPOTONIC SOLUTION : It is the solution which contains lesser amount of salt/sugar…

Q: During the absolute refractory period for a neuron, most voltage-gated Na+-channels are in which…

A: Introduction Action potential is a short-lasting event in which the electrical membrane potential of…

Q: Leak ion channels Select the correct response: open in response to small voltage changes. open when…

A: Leaky channels are those which are not regulated by the potential change in the membrane, so, any…

Q: You treat a biological membrane with an enzyme that degrades proteins. Do you expect this treatment…

A: Membrane is the outer covering of cell. It is responsible for transporting the solutes, solvent…

Q: Question 4. Which of the following statements are true of kinases? A. They always bind to a dimeric…

A: Protein tyrosine kinases (PTKs) are enzymes that act as a biochemical switch that controls the…

Proteins

We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.  

Protein Expression

The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.