1) Which of the following is a lipid-soluble hormone?

a.T3

b.thyroxine

c.corticosterone

d.DHEA

e.all of the above

2.Choose the steroid hormone.

a.cortisol

b.aldosterone

c.testosterone

d. estrogen

e. all of the above

3.Choose the hormone that MUST bind to a cell membrane receptor.

a.corticosterone

b.estrogen

c.calcitonin

d.PTH
e.all of the above

f.C and D

4.All hormones from the ______________ are considered steroids.

a.thyroid gland

b.adrenal medulla

c.adrenal cortex

d.hypothalamus

Question 1; e. all of the above

Question 2; e. all of the above

Question 3, all of the above

Question 4 ; c. adrenal cortex

Step-by-step explanation

Plasma membrane hormone receptors bind lipid insoluble hormones to receptors on the plasma membrane's outer surface. Lipid insoluble hormones, unlike steroid hormones, do not directly influence the target cell because they are unable to enter the cell and operate on DNA.

A steroid hormone is a steroid that has hormone-like properties. Corticosteroids (usually generated in the adrenal cortex, hence cortico-) and sex steroids are two types of steroid hormones (typically made in the gonads or placenta). Within those two classes, there are five kinds based on the receptors they bind to  glucocorticoids and mineralocorticoids (both corticosteroids) and androgens, estrogens, and progestogens (androgens, estrogens, and progestogens) (sex steroids). Vitamin D derivatives are a sixth hormone system with homologous receptors that is closely connected to the others. As receptor ligands, they share some of the features of real steroids.

The receptor for lipid-soluble hormones is usually found in the cell's cytoplasm or nucleus. The hormone's binding permits the receptor to regulate nucleoplasmic transcription, either alone or in combination with other transcription factors.

The three steroid glands, the adrenal cortex, testes, and ovaries, as well as the placenta during pregnancy, release a set of hormones that belong to the steroid class of chemical substances.