An imbalance in the concentration of protons across a membrane? a. proton gradient b. proton pump c. membrane polarization d. proton channel  e. Equilibrium

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: Which of the statements about diffusion are true? Select all that apply.     A. Solutes diffuse from…

A: The movement of particles is dependent on multiple factors including the charge on particle,…

Q: Why does the plasma membrane of a cell present a barrier to the movement of electrolytes through it?…

A: Introduction - The plasma membrane is a thin lipid bilayer that surrounds and protects the cell's…

Q: Question 7. A channel that opens in response to the binding of a specific molecule, which is usually…

A: Introduction :- Ion channels that are activated by changes in the electrical membrane potential…

Q: A cell in placed in a beaker of water, and the cell shrinks. What can you infer about the relative…

A: Osmosis is the movement of water across a semipermeable membrane from an area of lower solute…

Q: Cell membranes can maintain a difference in electrical charge between the inte- rior of the cell and…

A: Cell membrane is negatively charged from inside in comparison to outside. But at the time of impulse…

Q: Which of the following statements is true about active transport? A. The transported species always…

A: Active transport is a mode of transport of molecules against the concentration gradient using…

Q: Molecules in a fluid diffuse over time because A. they are pumped toward areas of higher…

A: Need to find why molecules in a fluid diffuse over time from the four given options.

Q: The movement of glucose across the plasma membrane is determined by: a. Electrochemical gradient O…

A: Plasma membrane is the selectively permeable membrane, which allows the movement of only selective…

Q: Cholera affects millions of people around the world. It causes diarrhea, which can lead to…

A: Cholera toxin also called as choleragen which is abbreviated as CTX, it is AB5 multimeric protein…

Q: Which of these is not a function of the lipid bilayer? A. Changes the temperature B. Provides a…

A: The lipid bilayer is a universal component of all cell membranes. Its role is critical because its…

Q: A concentration gradient is used as an energy source for____________. Select one: a. Secondary…

A: The movement of molecules occurs across plasma membrane in a regulated manner.

Q: How does ATP relate to membrane transport?a. The movement of a substance down its concentration…

A: Adenosine triphosphate (ATP) is defined as an energy-carrying molecule that is present in all living…

Q: Which of these transport pathways require ATP? Select all that apply.     A. Sodium-potassium pump…

A: Primary active Transport utilizes External energy like ATP. Examples -Sodium Potassium pump .In this…

Q: What can you infer regarding the function of Aquaporin 3? b. How will the drug treat constipation?…

A: Aquaporins are intrinsic proteins that produce pores in biological cell membranes. These pores allow…

Q: The correct enzyme involved in synthesizing atp from adp is: a. Kinase  b. Protease  c.…

A: The production of ATP is very much important in case of a living organism. This ATP provides…

Q: . A TRANSPORT MECHANISM ACROSS A MEMBRANE WHERE THE MOVEMENT OF THE SOLUTION IS FROM HIGHER TO LOWER…

A: Since you have posted multiple questions we will solve the first question for you. If you want any…

Q: What type of energy helps drive the passive processes of diffusion, osmosis, and facilitated…

A: Energy is in fact required for all metabolism. Metabolism refers to the total of all the chemical…

Q: Which type of transporter chemically alters glucose during passage across the membrane?. a. ABC…

A: In cellular biology, the regulation of glucose uptake and utilization is a fundamental process that…

Q: 18. Adenosine triphosphate or ATP is the energy currency of the cell. Which of the following…

A: According to our guideline we can answer only the first three subparts of a question and we must…

Q: The osmolarity of a solution of 100 mM CaCh, is closest to the osmolarity of which of the following…

A: The correct answer is option d. 150 mM NaCI.

Q: Which of those ions do not have specific pumps in membrane? Select one: O a. K O b. H O c. CI O d.…

A: Membrane transport refers to the movement of molecules across the cell membrane. The lipid bilayer…

Q: How does cholesterol affect membrane fluidity? Group of answer choices a. It tends to increase the…

A: Introduction: Cholesterol is a significant determinants of layer permeability properties as it is a…

Q: Movement of glucose down its concentration gradient into cells is facilitated by Select one: a.…

A: We know that a plasma membrane is a selectively permeable structure. Most biomolecules are unable to…

Q: Which of the following is always at the same concentration inside and outside the cell? a. potassium…

A: Answer is option b .) water.

Q: Regarding membrane transport, which of the following is related with osmosis a. movement of water b.…

A: Membrane transport is the movement of  molecules and ions across the biological membranes, that…

Q: Determine whether you would expect the interior of an H+transport protein to be positively or…

A: The transport proteins are transmembrane proteins that mediate the active or passive transport of…

Q: Which of the following best describes a hyperosmotic solution? A. a solution with a higher…

A: Given: A solution is a homogenous mixture  which is madeup of a solute dissolved within a solvent.…

Q: substances be transported across a membrane against their concentration gradient?

A: Some membrane proteins are ATP-dependent carrier molecules.

Q: Which of the following statements concerning ionophoresare true?a. Ionophores form channels through…

A: The cell's internal composition is regulated by the plasma membrane which provides the permeability…

Q: Suppose one of your cells has a solute concentration of 10%. If we put it in a glass of sugar water…

A: Osmosis is a process that involves the passive transport of solvent (water). In osmosis, water moves…

Q: Which of the following ion transport functions must be carried out by a pump? a. transport of Na+…

A: The flow or movement of ions across membranes is dependent on establishment of ion gradient. Every…

Q: Based on the features of the cell membrane explain why water molecules require channel proteins e.g.…

A: Plasma membrane is the outermost covering in both prokaryotic and eukaryotic cells.

Q: What type of transporter moves glucose into the cell against its concentration gradient? A.…

A: The plasma membrane of the organism is a selectively permeable one which only allows restricted…

Q: Why should it not be surprising that for many cells water requires a protein for its transport…

A: A basic activity required for cellular homeostasis and different biological processes is the…

Q: Where will the energy for active transport be derived from? A. Hydrolysis of ATP B. Co-transport of…

A: Active transport is the movement of ions and molecules from a region of low concentration to a…

Q: Suggest the mechanism(s) by which each of the following substances is transported across cell…

A: The transportation of a typical biomolecules across the plasma membrane depends on the chemical…

Q: If the fluid inside a cell has a 1.5% solute concentration, which of the following solution(s) would…

A: A type of homogeneous mixture that consist of two or more components is referred to as a solution. A…

Q: What type of energy helps drive the passive processes of diffusion, osmosis, and facilitated…

A: Diffusion and osmosis and facilitated diffusion are all passive processes that rely on molecules…

Q: Based on the figure attached, this system represents:   a.  primary active transport b.  passive…

A: There are two main types of transport that occurs in cells, active transport and passive transport.…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.