NEET Solved Paper 2019 Question 7
Question: How does steroid hormone influence the cellular activities? [NEET 5-5-2019]
Options:
A) Activating cyclic AMP located on the cell membrane
B) Using aquaporin channels as second messenger
C) Changing the permeability of the cell membrane
D) Binding to DNA and forming a gene-hormone complex
Show Answer
Answer:
Correct Answer: D
Solution:
- Steroid hormones influence cellular activities primarily by binding to specific intracellular receptors, which then interact with DNA to regulate gene expression. This process involves the formation of a gene-hormone complex that can either activate or repress the transcription of specific genes, leading to changes in protein synthesis and, consequently, cellular function.