Question

the ____ uses iodine in a synthesis reaction. a spleen b liver c thymus d thyroid gland question 30 proteins denature when a bonds between carbon and oxygen break. b hydrogen bonds break. c peptide bonds break. d peptide bonds form.

Explanation:

First Question (The ____ uses iodine in a synthesis reaction)

The thyroid gland uses iodine to synthesize thyroid hormones (like T3 and T4) through a series of reactions. The spleen is involved in blood filtration, the liver in metabolism/detoxification, and the thymus in immune cell development—none use iodine for synthesis.

Protein denaturation involves the disruption of the secondary, tertiary, or quaternary structure, which is mainly stabilized by hydrogen bonds (along with other weak interactions). Breaking peptide bonds is proteolysis (not denaturation), breaking C - O bonds is not related to denaturation, and peptide bond formation is protein synthesis, not denaturation.

Answer:

D. thyroid gland

Second Question (Proteins denature when)