How Does a Plasma Membrane Protein Become Imbedded in the Membrane

question 45

Multiple Choice

How does a plasma membrane protein become imbedded in the membrane?

• A)Ribosomes attach to the plasma membrane and translation of the peptide occurs directly on the PM.
• B)Ribosomes enter the endoplasmic reticulum and make the proteins within the ER.
• C)Once the signal peptide is translated, the ribosome complex is escorted to the PM, translation continues and the peptide is inserted through a pore in the membrane.
• D)Once the signal peptide is translated, the ribosome complex is escorted to the ER, translation continues and the peptide is inserted through a pore in the membrane.
• E)Once completed, the protein is escorted to the PM and a chaperone protein pushes it in.

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Definitions:

Average Revenue

The total revenue earned by a firm per unit of output sold.

Competitive Market

A market structure characterized by a large number of buyers and sellers, where no single entity controls the market price.

Marginal Cost

Marginal cost is the change in total cost that arises when the quantity produced changes by one unit. It's pivotal in decision-making processes regarding increasing or decreasing production.

Marginal Revenue

The extra financial gain from selling an additional unit of a product or service.