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Q: Which of these processes are membrane-crossing mechanisms that require no energy input? Select all…

A: Transport mechanisms are of two types - active transport that requires energy expenditure and…

Q: Explain why 02 can pass through the plasma membrande but ions must use transmembrane proteins

A: Oxygen & carbon dioxide get across cell layers by means of simple diffusion, a cycle that needs…

Q: The cells lining the small intestine rapidly move large quantities of glucose from the glucose-rich…

A: The energy of the cell, usually in the form of adenosine triphosphate, is required for active…

Q: Compare and differentiate the three transport systems in bacteria (simple transport,…

A: Simple transport is a form of passive transport that does not require ATP to be utilized to…

Q: The primary function of the kidney is to exchange molecules across a membrane between the blood and…

A: The projections increase the surface area–to-volume ratio of the cell, which allows for more…

Q: Membrane carriers resemble enzymes except for the fact that carriersa. are not proteins.b. do not…

A: A membrane carrier is a molecule that is involved in the movement of ions, small molecules, and…

Q: solute passively diffuses through a transport protein out of the cell, therefore, ____. a. the…

A: Diffusion is a passive process in which transport of molecules takes place across the plasma…

Q: The plasma membrane of all animal cells contain the Na+/K+ pump. If you consider the clathrin-coated…

A: The protein-coated vesicles function to transport protein molecules within the cell. The three types…

Q: Here is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC =…

A: Co transporters are a type of membrane proteins and they are capable of moving solutes up or down…

Q: Which of the following types of transporters would be utilized to move two different types of…

A: Cell transport is defined as the process of the movement of substances across the cell membrane.…

Q: Here is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC =…

A: Marine animals are living in an environment in which the salt concentration is very high. They are…

Q: Here is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC =…

A: The chloride cells are present in the gills of freshwater and seawater fishes. In the seawater fish,…

Q: Glucose can be transported into cells with a glucose/sodium symporter. If the extracellular…

A: Glucose is the major nutrient in the animals obtained after the digestion of carbohydrates. The…

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: 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: Is the function of pump membrane direct or indirect?

A: It may be direct or indirect .

Q: Active transport pumps are used to move sodium ions across the membranes of gill cells in freshwater…

A: Active Transport:  Active transport is the movement of molecules across a cell membrane across a…

Q: what would happen to the transport of sater across a membrane if the aqua poring were…

A: The aqua porings are the pores that are present on the cell membrane. They are essential to…

Q: A. Is ATP required for this transport process to occur? Explain why or why not. B. Consider only…

A: Skeletal muscles cells:  The connective tissue layer that provides support and protection for the…

Q: What distinguishes P-type transporters from ABC transporters? P-type transporters are primary active…

A: The plasma membrane is semipermeable that allows only the selected substances to move across the…

Q: What is the purpose of the "sodium/potassium pump" A. to perform endocytosis. B. to move sodium and…

A: The plasma membrane is selective barrier of the cell that regulates the transportation of different…

Q: Which of the following statements about "leak channels" in the plasma mem- brane is correct? A.…

A: Introduction - The sodium ions concentration inside the cell is low, while the sodium ions…

Q: Which of the following statements, regarding the figure below, is correct? (Glucose]jow Glu Na…

A: Digestion occur in the small intestine where breakdown of food occur and thus absorption occur by…

Q: Briefly describe, how  P-type transporters helps in transporting ions?

A: The cell membrane is impermeable to many substances, except small molecules such as oxygen and CO2.…

Q: Which of these statements about ion movement through the plasmamembrane is true?a. Movement of Na+…

A: The cell is the basic structural, functional, and biological unit of all known organisms. The plasma…

Q: In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against…

A: Indirect active transport uses the downhill flow of an ion to pump some other molecule or ion…

Q: The protein shown below is an example of a(n). Sodium-calcium 3Na+ exchanger Plasma membrane Ca²+…

A: Transport protein is of 2 types: - Channel and carrier  protein - carrier protein is further of 2…

Q: All of the following correctly describe the sodium-potassium pump EXCEPT: O a. Molecules are pumped…

A: The correct Option is C . Potassium ions are pumped into the cell, where they are present in lower…

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: Does sodium chloride dissociate before going through the membrane? I am wondering because in…

A:

Q: Compare and contrast the different transport mechanisms: Electrochemical gradient…

A: Factor Passive Diffusion Facilitated Diffusion Active Transport Electrochemical Gradient Present…

Q: Which of the following is CORRECT concerning the ABC transporter proteins? O They do not undergo…

A: ABC transporters belongs to the ATP binding cassette transporters superfamily.

Q: Investigate the processes of diffusion and osmosis and how they relate to kidney dialysis. You may…

A: The osmosis can be defined as the process of movement of solvent molecules from a lesser…

Q: Both active and passive transports can be subdivided further. Distinguish between the different…

A: According to our guideline we can answer maximum three subparts of a question. So upload the last…

Q: look like for active transport (pumps) usin

A: ATP generated using Electron transport chain is called oxidative phosphorylation.

Q: The contraction of cardiac muscle cells results from the increase in calcium ion levels in the…

A: Membrane transport is the mechanism which regulate the transport of ions and micro molecules through…

Q: Give answer all questions with explanation

A: The cell membrane is a structure which protects the cell and acts as a barrier and transports the…

Q: A) Based on the drawings above, which molecules were able to diffuse through the 150 MWCO membrane?…

A: Introduction  MWCO means Molecular weight cutoff. This term is used to describe the pore size and…

Q: A cell creates a H+ gradient across a membrane- in other words, a situation is created were the…

A: Answer: PROTON GRADIENT = It is the concentration of H+ ions across the membrane where one side has…

Q: One of the following is TRUE? A. The transport of Na+ across cell membranes depends solely on…

A: An electrochemical gradient is defined as a gradient of the electrochemical potential. It is…

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 correct statements regarding the transport of proteins to the ER shown in the diagram below.

A: The signal recognition particle dependent targeting pathway helps in the rapid and efficient…

Q: All of the following correctly describe the sodium-potassium pump EXCEPT: O a. A total of five…

A: Plasma membrane is a selectively permeable membrane which means it allows the entry and exit of only…

Q: Explain why Na+ is low inside cells despite a large concentration gradient inward

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

Q: The sodium-calcium-exchanger (NCX) protein is an antiport protein that is located in the membranes…

A: The sodium-calcium exchanger is the dominant Ca2+ efflux mechanism in cardiac cells. The…

Q: The antibiotic valinomycin is an ionophore that forms a specific complex with potassium ion. Because…

A: Valinomycin is a powerful antibiotic as it facilitates the rapid movement of K+ ions across the cell…

Q: Here is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC =…

A: The gills of teleost fishes consists of cell which is called a chloride cell. The function of…

Q: Lysozyme is placed in a dialysis tube. The protein has a charge of +18 at pH 7.0. If the protein is…

A: Lysozyme is a an antimicrobial enzyme (also called as muramidase / N-acetylmuramide glycanhydrolase)…

Q: Compare and contrast simple transporters, thephosphotransferase system, and ABC transporters in…

A: The plasma membrane is a selectively permeable covering composed of phospholipids and proteins. It…