Which statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins are bound to the interior of the membrane. (b) Both proteins and lipids undergo transverse (flip-flop) diffusion from the inside to the outside of the membrane. (c) Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane. (d) Carbohydrates are covalently bonded to the outside of the membrane. (e) The term mosaic refers to the arrangement of the lipids alone.

Q: Why is the intermembrane space acidic?

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Q: State the functions of each of the following cell membrane processes. 1. mosaicity 2. fluidity 3.…

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Q: List six types of proteins found in the plasma membrane.

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A:

Q: Membranes consist of a bilayer of _______________.The five major categories of protein within the…

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Q: Why is the inner membrane so highly folded?

A:

Q: Functional types of transmembrane proteins?

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Q: What is  inner membrane?

A: The cell is the smallest and fundamental unit of life. Every living being made up of cells and it is…

Q: What is membrane?

A: The cell is the smallest and fundamental unit of life. Every living being made up of cells and it is…

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Q: Contrast how transmembrane proteines and membrane anchored proteins associate with the membrane?

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Q: Can water, carbon dioxide, oxygen and calcium ion can move freely across the plasma membrane?

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Q: Define the Structure and growth of the first plasmamembrane ?.

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Q: Concerning their permeability how are membranes classified?

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Q: What is  composition of the outer membrane?

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Q: Do proteins move in the plane of the membrane?

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Q: Why is the cell membrane not an absolute barrier between the cytoplasm and the external environment?

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Q: Do membranes form only the outer wrapping of cells?

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A: The answer is D

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.