how does the cell membrane protect the cell

The structure most responsible for maintaining cell homeostasis is the cell membrane.

What is one reason that a cell needs to regulate flow across the membrane?

It is square. What is one reason that a cell needs to regulate flow across the membrane? The nucleus needs to bring in DNA. The cell needs carbon dioxide as a source of energy.

What effects on the function of the membrane might the cell experience if the cell membrane is damaged?

Plasma membrane damage results in loss of osmotic balance and influx of fluids and ions, as well as loss of proteins, enzymes, coenzymes, and ribonucleic acids. The cells may also leak metabolites, which are vital for the reconstitution of ATP, thus further depleting net intracellular high-energy phosphates.

Why is the cell membrane flexible?

The fatty acids of most natural phospholipids have one or more double bonds, which introduce kinks into the hydrocarbon chains and make them difficult to pack together. The long hydrocarbon chains of the fatty acids therefore move freely in the interior of the membrane, so the membrane itself is soft and flexible.

How does the cell membrane control what goes in and out?

The cell membrane controls what goes in and out by having protein channels that act like funnels in some cases and pumps in other cases. Passive transport does not require energy molecules and happens when a funnel opens in the membrane, letting molecules flow through.

Why is the cell membrane important quizlet?

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer from tail to tail with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

How does the structure of the cell membrane affect its function?

It forms a physical barrier and as a barrier between the cell and the external environment as it allows only selected necessary molecules to pass through it and at the same time prevents entry of unwanted / unnecessary substances. It also regulates the entry and exit of molecules into and out of the cell.

What would happen if a cell membrane is damaged?

If the plasma membrane ruptures or breaks down, the cell will not be able to exchange material from its surroundings by diffusion or osmosis because it acts as a mechanical barrier. Thereafter, the protoplasmic material will be disappeared, and the cell will die.

Inside the Cell Membrane

Cell membranes are way more complicated than you think – Nazzy Pakpour

Cell membrane-Structure and Function

Insights into cell membranes via dish detergent – Ethan Perlstein

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