What is the role of peptide hormones in regulating protein metabolism?

A They stimulate protein synthesis by activating transcription factors ✓
B They inhibit protein degradation by suppressing proteolytic enzymes
C They regulate glucose metabolism and indirectly affect protein synthesis
D They stimulate protein degradation by activating ubiquitin-proteasome pathway

Explanation

Peptide hormones, such as insulin and growth hormone, play a crucial role in regulating protein metabolism by stimulating protein synthesis and inhibiting protein degradation.

Mnemonic

PHR = Peptide Hormones Regulate

Source

Lehninger Principles of Biochemistry
Protein Metabolism Biochemistry Hormonal Regulation of Protein Metabolism Medium MEDICAL Confidence: high