In general, membrane proteins: A. Must all act as enzymes B. Will have one or more...

In general, membrane proteins:

A. Must all act as enzymes

B. Will have one or more regions with hydrophobic side chains

C. Have no polar functional groups on them

D. Must be attached to carbohydrates

Expert Solution

Ans) In general, membrane proteins

A) must act as enzymes because these proteins perform enzymatic activity such as aid in metabolic pathways, signal transduction and relay chemical messages.

B) membrane proteins are widely divided into cateogories :- integral or intrinsic and peripheral or extrensic membrane proteins. The integral membrane proteins contain residues with hydrophobic side chain which interact with fatty acyl groups of the membrane phospholipids whereas the peripheral membrane proteins donot interact with hydrophobic core.

C) this statement that the membrane proteins donot contain any polar functional groups on them is correct because when examined the primary structure of protein, it brings to a conclusion that most amino acids present in the membrane proteins are non polar and very few of them contain any charge.

D) Nearly all membrane proteins have carbohydrates and these are calles as glycoproteins. The main function of presence of carbohydrate with membrane protein is that it helps a cell to be recognized as a certain type of cell is also helpful in holding the cells together.

gladiator answered 2 years ago

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