substances be transported across a membrane against their concentration gradient?

Q: Among the membrane transporters, the channels require energy and therefore are involved in active…

A: Channel protein form pores through membrane allowing the free diffusion of any molecule of the…

Q: Below are three statements - two of which are truths and one is a lie. Which of the following…

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

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: Can you please answer question 26, 34 and 35

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Which of the following will saturate as solute concentration increases?   a. Transport of sucrose…

A: Saturation kinetics describes the situation in which an enzyme reaction achieves its maximum…

Q: If the concentration of a solute is the same both inside and outside the cell, what might you expect…

A: Note: Please note that keeping with the site regulations and in order to provide detailed and…

Q: Which statement best describes how cholesterol affects cell membrane fluidity? * a.Cholesterol…

A: Depending on the temperature, cholesterol has distinct effects on membrane fluidity.

Q: If a cell is hypertonic to its environment, what may happen as a result of osmosis? A. its volume…

A: Introduction  Plants cells maintains the Turgor pressure in order to control the cell shape. Turgor…

Q: Match the definition with the term. a. to shrink or shrivel b. water moving through selectively…

A: In order to understand a particular process or substance, specific terms are used to define them,…

Q: What features of a membrane are major contributors to its selectivepermeability?a. phospholipid…

A: The plasma membrane is the outer covering in the cells with no cell wall or any other outer covering…

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: What does asymmetry of the membrane refer to? A. Differences in the arrangements and structures of…

A: Phospholipid bilayer is an asymmetric membrane in which asymmetry is contributed by a number of…

Q: What determines which way materials move during diffusion and osmosis? a. concentration gradient…

A: Water is a polar molecule, constituent molecules of water remain attached by forming hydrogen bonds.…

Q: Which statement is NOT true of membrane transport • proteins? A. Their specificity depends on their…

A: They are integral membrane proteins that facilitates the movement of various substances across the…

Q: Draw a diagram that compares and contrasts types of passive and active transport.

A: Molecules move from outside of cell to inside of the cell and vice versa .via this transport…

Q: I. Metabolism is the elimination of metabolic wastes including nitrogenous wastes produced from the…

A: Metabolism is the process by which the body produces energy by utilizing the food that is consumed.…

Q: Which of the following describes how osmosis occurs across a cell membrane/   A. Solutes move from…

A: Cell membrane is also called as plasma membrane which acts as a shield and selectively permeable…

Q: Give typing answer with explanation and conclusion    Which of the following will increase the…

A: Plasma membrane consists of a fluid combination that include phospholipids, protein and cholesterol.…

Q: Which of the following statements is correct? A. A transmembrane integral protein is required…

A: The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate…

Q: Which of the following statements regarding the selective permeability of the lipid bilayer is…

A: The plasma or cell membrane contains a bimolecular phospholipid layer with polar heads and non polar…

Q: Active transport must function continuously because. a. plasma membranes wear out b. not all…

A: While passive transport keeps moving the solutes along the concentration gradient to maintain…

Q: Match each of the following with the best answer choice: B. the diffusion of water across a membrane…

A: Cell membrane transport refers to the movement of substances across the cell membrane, which…

Q: When you jump in the bath, water does not run around all your cells and directly into your body.…

A: These are water channels,  are channel proteins from a larger family of major intrinsic proteins…

Q: Which of these statements about facilitated diffusion is true?a. In facilitated diffusion, net…

A: The transport of biological molecules across the eukaryotic cells depends upon the plasma membrane,…

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

A: The cells are covered by a plasma membrane which forms a barrier between the cell interior and the…

Q: Why are ion channels necessary to transport ions into or out of a cell? a. Ions are too large to…

A: The answer to the above question is option (b) (b) Ions are charged particles and cannot diffuse…

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: Why can't ions like sodium (Na+) or potassium (K+) diffuse directly through the phospholipid…

A: The cell membrane is a quasi-fluid structure, meaning it provides stability to the cell and holds…

Q: Active transport is different from passive transport because a. no additional energy is required.…

A: Transport is defined as the process of transfer in the molecules from the one side of the membrane…

Q: Imagine a cell can perform exocytosis, but only minimalendocytosis. What would happen to the cell?a.…

A: The term endocytosis was coined by Christian de Duve. It is divided into phagocytosis and…

Q: What do active transport and facilitated diffusion have in common? a. They both create membrane…

A: Active transport is the transportation of solutes from lower concentrations to higher…

Q: compare and contrast the four in tables 1. active and passive transport

A: "Since you have posted multiple questions, we will provide the solution only to the first question…

Q: If a membrane protein in an intact erythrocyte reacts with a membrane-impermeable reagent, what can…

A: Introduction: Although the lipid bilayer provides the fundamental structure of biological membranes,…