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There are many uses for proteins in a cell membrane but the most common ones are:

1. Facilitated diffusion- a protein acts almost like a channel to allow molecules that cannot fit across the phospholipid bilayer to diffuse into/out of the cell

2. Active transport- proteins are used to move particles across the membrane from low to high concentration, using energy.

3. As receptor molecules which take signals from things like hormones.

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Angus Koepp

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2y ago
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AnswerBot

4mo ago

Proteins have many important functions in a cell, including serving as structural components, enzymes that catalyze reactions, transportation of molecules within the cell, cell signaling, and regulation of gene expression. They are essential for the proper functioning and maintenance of the cell.

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12y ago

Proteins are building blocks of the cells. It is needed to build new cells.

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14y ago

They help the cell membrane

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Q: What do proteins do for the cell?
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Related questions

Are proteins assembled in the cell?

Ribosomes are the cell organelles that assemble proteins. They function as factories to produce usable proteins for a cell.


What kinds of proteins can be found in cell membranes?

Proteins found in cell membranes can include transport proteins, receptor proteins, cell adhesion proteins, and enzymes. These proteins play crucial roles in maintaining the structure and function of the cell membrane, as well as facilitating various biological processes such as cell signaling, molecule transport, and cell-cell interactions.


What are the proteins that control reactions in a cell?

The proteins that control reaction in a cell are enzymes.


What cell builds lysosomes?

proteins


The part of the cell that constructs the proteins that your cell needs is the?

ribosomes are the organelles responsible for constructing proteins in the cell.


How can proteins fit in the cell?

Proteins are MUCH tinier (by a million times) than a cell.


Where are the ribosomes the manufacture proteins for transport out of the cell located?

Ribosomes which make extracellular proteins (proteins which are used outside of the cell) are located on the rER (rough ER). Ribosomes which make proteins which remain in the cell are free floating in the cell's cytoplasm.


Proteins in the cell membrane that identify the cell are called?

These proteins are called self markers. They tell the immune cells that they belong in the body and they should be attacked.Cell receptors (proteins) on the cell membrane mediate the inter cellular communications.


How the cell synthesizes proteins?

the ribosome makes proteins


What does the cell use proteins for?

A cell uses Proteins for repairing and building up muscles injuries.


What is a passageway in a cell for proteins?

Proteins enter and leave the cell through endocytosis and exocytosis, respectively.


The kinds of proteins produced you a cell are related to what?

The types of proteins produced by the Cell are those that are allowed by the Expression of the Genes in a cell's Dna.