Which Best Describes a Selectively Permeable Plasma Membrane

It consists mainly of phospholipids and proteins. Question 2 1 point Which of the following best describes the plasma membrane of plant cells.

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The answer I think is D.

. B It is a selectively permeable phospholipid bilayer membrane embedded with proteins which confers to the fluid mosaic model. It is because it allows some. Permeable refers to whether something is allowed or can go through the plasma membrane in this example.

Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. The plasma membrane is selectively permeable. A selectively permeable membrane allows all molecules to cross.

This is important for the cell to maintain its internal order irrespective of the changes to the environment. The phospholipid molecule contains a polar head and non-polar tail. Randomly Porous Systematically Solid Highly dignified Selectively permeable Simply Irresistable Very lignified Indiscriminately permeable Completely impenetrable.

The solubility theory of membrane permeability simply describes that a membrane can only be freely permeable to substances that can dissolve in it. Selectively describes the way in which things is selected some may of may not be selected. Thus D is the answer that corresponds most strongly to this question whereas the others do not.

For example water ions glucose and carbon dioxide may need to be imported or exported from the cell depending on its metabolic activity. Hence the correct answer is option D. It is non permeable as it does not allows the movement of each and every substance.

Which BEST describes the plasma membrane of all living things. Which phrase best describes the property of selective permeability. The polar head is composed of a phosphate group and glycerol.

Plasma membrane is selectively permeable and it allows the movement of only some particles and molecules which is essential for the cell. A It is a highly impermeable phospholipid bilayer membrane embedded with proteins which does not confer to the fluid mosaic model. A plasma membrane is a phospholipid bilayer in which phospholipid molecules are arranged in two parallel rows.

This was the most basic theory posed to explain.

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