Proteins comprise of ___________% of the total dry weight of a cell?
Correct answer: B. 50%
- A. 40%
- B. 50%
- C. 60%
- D. 70%
Explanation
Proteins make up approximately 50% of the dry mass of a typical cell, reflecting their roles as enzymes, structural materials, transporters and cell machinery. Students may choose 60% by confusing the proportion of protein in some tissues or organisms with the usual cellular dry-weight estimate.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Proteins
Proteins are polymers of amino acids joined by peptide bonds, and their function depends on primary, secondary, tertiary and quaternary structure. The topic covers fibrous and globular proteins, enzymes, antibodies, hormones and transport proteins, as well as denaturation by heat or extreme pH.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Proteins questions
Proteins are polymers of___________?
An insulin molecule consists of _________ polypeptide chains?
A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?
Peptide bond is_____________?
The one which is not a globular protein__________?
Primary structure of proteins determines__________?