Question

question 34
which of the following statements about protein synthesis is false?
a the composition of amino acids in the proteins that we synthesize is determined by the composition of amino acids in the diet.
b the composition of amino acids in the proteins that we synthesize is determined by genetics.
c proteins fold into a three - dimension shape as a result of the amino acid side chains in the protein.
d none of the above statements are false.

Explanation:

• Option A: Protein synthesis is determined by genetics (DNA sequence), not the composition of amino acids in the diet. The diet provides amino acids (building blocks), but the genetic code dictates the sequence and thus the type of protein synthesized.
• Option B: The composition of amino acids in proteins we synthesize is determined by genetics. DNA has the code which through transcription and translation leads to a specific sequence of amino acids in a protein.
• Option C: Proteins fold into three - dimensional shapes as a result of interactions (like hydrogen bonds, hydrophobic interactions) involving the amino acid side chains.

Since option A is a false statement about protein synthesis.

Answer:

A. The composition of amino acids in the proteins that we synthesize is determined by the composition of amino acids in the diet.