Question

1.What is the target cell and response for thyroid hormone (TH)?

	a.	TH binds to smooth muscle cells in the uterus, which causes contraction of the organ and a further increase in TH release.
	b.	TH binds to bone tissue and increases destruction of bone cells to release calcium into the blood.
	c.	TH binds to blood vessel walls in intestinal capillary beds, causing them to constrict and reduce blood flow to the gut.
	d.	TH binds to nearly every body cell and increases the basal metabolic rate of the cell.

2.Which combination of hormones helps a mother to produce milk and nurse her baby?

	a.	luteinizing hormone and oxytocin
	b.	oxytocin and follicle-stimulating hormone
	c.	follicle-stimulating hormone and luteinizing hormone
	d.	prolactin and calcitonin
	e.	oxytocin and prolactin

3.

Which of the following statements about hormones is incorrect?

	a.	They elicit specific biological responses from target cells.
	b.	They are modified amino acids, peptides, or steroid molecules.
	c.	They are produced by endocrine cells.
	d.	They are all water soluble, so they can dissolve in the circulatory system.

Answer 1

1. D) thyroid hormones acts on almost every cell of body and increases their basal metabolic rate since they acts on almost every metabolic pathways involved in body

2. E) in post partum mother its prolactin hormone from pitutary gland that leads to milk formation in breast tissues and Oxytocin hormone heps in ejection of milk when baby feeding over breast via stretch receptors present on myoepithelial cell.

3. D)NOT all homones are water solubles for e.g. thyroid, testosterone,estrogens and many are also fat solubles.