Choose which substances cannot pass through the phospholipid bilayer of the plasma membrane.  A. Gasses B. Charged molecules  C. Hydrophobic molecules  D. Lions E. Water F. ATP

Q: Magnesium ions are in higher concentration inside the cell. What process would the magnesium ions…

A: Diffusion allows molecules and ions to travel down their concentration gradient on their own.…

Q: Active transport of a substance across a membrane requiresa. a gradient b. the expenditure of ATP c.…

A: Cellular transport is the movement of molecules and ions across the cell membrane. Cells have two…

Q: A scientist compares the plasma membrane compositionof an animal from the Mediterranean coast with…

A: Answer- The cells from the Mojave Desert animal will have ahigher cholesterol concentration in the…

Q: What variable(s) influence(s) whether a nonpolar molecule can move across a membrane by passive…

A: All the above choices are correct as all these variables influenced a non polar molecule to move…

Q: Which statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins…

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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…

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Q: d) hypertonic

A:

Q: Which of the named factors might induce bending of membranes? Select one: a. Cylindrically shaped…

A: C- Conically shaped proteins induce bending of membranes The options A,B,D do not  induce bending of…

Q: Make an illustration/representation that will show how cell membrane carry out the following…

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Q: The sodium-potassium pump helps to maintain electrolyte gradients through use of ATP. Which of the…

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Q: Which form of transport through the plasma membrane requires the expendi- ture of energy by the…

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Q: Choose answer of the following The extracellular matrixa. assists in the movement of substances…

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Q: Proteins like albumin in the blood maintain water inside the blood vessels using A. Osmotic pressure…

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Q: Facilitated diffusion differs from active transport in thatfacilitated diffusiona. expends no ATP.b.…

A: The cell membrane is semipermeable and allows only certain molecules transportation from in and out…

Q: As molecular weight increases.a). the rate of diffusion remain unchanged.b). the rate of diffusion…

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Q: Which of these statements about carrier-mediated facilitated diffusion is true? a. It uses cellular…

A: There is a need for the movement of substances in and out of the cell for cellular exchange. It is…

Q: Which is common between active transport and facilitated diffusion A Both uses metabolic energy B…

A: Bothe process happen with the aid of transport proteins. Facilitated diffusion is a passive…

Q: Which of the following is incorrect regarding facilitated diffusion?a. It is a passive process.b. It…

A: Molecules can move via biological membranes via 2 main methods : active and passive transport.…

Q: If magnesium ions are in higher concentration outside the cell, they would move into the cell by the…

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Q: Our cells need glucose for energy. When blood glucose is low, glucose must still be moved into our…

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Q: a) What are the forces that maintain structural integrity of biological membranes?

A: Hi. Thank you for the questions. As you have posted multiple questions, I will be answering the…

Q: A cell engulfing a relatively large particle will likely utilize a.exocytosis b.receptor-mediated…

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Q: Would substances be able to pass through the plasma membrane if the phospholipid tails of the plasma…

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Q: A researcher is studying White Blood Cells (Leukocytes) of a patient infected with Tuberculosis…

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Q: A transmembrane protein contains a stretch of amino acids that crosses the plasma membrane. The side…

A: Transmembrane protein It is an integral protein that is embedded in the cell membrane.  The plasma…

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: A young man in his 20s has a heart attack and is rushed to the hospital. Blood is drawn, and his…

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Q: The cells making up the epithelial linings of organs that contain liquid, e.g., the bladder and…

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Q: Receptor mediated endocytosis requires the presence of a) primary active transport pumps. D) carrier…

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Q: |A Are plasma membranes; B Are impermeable; |C Are, such as micelles, lipid bilayers; Are lipid…

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Q: Which of the following factors would tend to increasemembrane fluidity?(A) a greater proportion of…

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

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Q: Which statement about the plasma membrane is INCORRECT ect one: a. It is selectively permeable. b.…

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Q: Which of the following statements is true of membrane proteins? a) They are suspended on the…

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Q: otein Which of following statements is true? A. Polar molecules cannot simply diffuse across the…

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

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Q: Plasma cells are key to the immune response because they secrete antibodies. Given that antibodies…

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Q: If you added many phospholipids to some water, they would spontaneously orient themselves into…

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Q: We have seen that biological membranes have both lipid and protein components. How do these two…

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Q: How do bile salts remove excess cholesterol from the body a) Bile salts stabilize deposited…

A: Cholesterol is a material present in your body which is fatty. Too much cholesterol in your arteries…

Q: Which of the following is not a function of the extracellular matrix   Select one: A.  Prevents…

A: An extracellular matrix (ECM) is a network of macromolecules such as collagen, glycoproteins, and…

Q: Choose which substances can pass freely through the plasma membrane  A. Gasses B. Charged molecules…

A: The cell membrane is selectively permeable which means it allows specific molecules to pass through.…

Q: Which statement about the plasma membrane is INCORRECTR Select one: O a.lt is selectively permeable.…

A: A cell is composed of different structures such as cell wall, cell membrane or plasma membrane and…

Q: Membrane proteins play the following roles: Select one: a. All of the answers b. Enzymes c. Cell…

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Q: Which form of transport through the plasma membrane requires energy by the cell? Select one: a.…

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Q: Which of these REQUIRES active transport in order to cross the plasma membrane? A. a sodium ion…

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Q: Molecules that are too large to be moved across a cell membrane can enter the cell by? A. Diffusion…

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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.