Mechanism of Action of Lipophilic Hormones

Q. Steroid hormones work as

1. They enter into target cells and binds with speicific receptor and activates specific genes to form protein
2. They binds to cell membrane
3. They catalyse formation of cAMP
4. None of the above

Q. Which one of the following pairs of hormones can easily pass through the cell membrane of the target cell and bind to a receptor inside it?

1. Insulin and glucagon
2. Thyroxine and insulin
3. Somatostatin and oxytocin
4. Cortisol and testosterone

Q. Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and bind to a receptor inside is (mostly in the nucleus)?

1. Somatostatin, oxytocin
2. Cortisol, testosterone
3. Insulin, glucagon
4. Thyroxin, insulin

Q. How does steroid hormone influence the cellular activities?

1. Using aquaporin channels as second messenger
2. Changing the permeability of the cell membrane
3. Binding to DNA and forming a gene-hormone complex
4. Activating cyclic AMP located on the cell membrane

Q. Which of the following is not a secondary messenger in hormone action?

1. Sodium
2. Calcium
3. cAMP
4. cGMP

Q. Which of the following hormones can cross the cell membrane of the target cell?

1. Epinephrine
2. Follicle stimulating hormone
3. Progesterone
4. Prolactin