Question

Hi. please answer all parts of the question. thanks.

1. Hormones and endocrine
   1. In general, what do hormones do?
   2. Describe how steroid hormone pathways are different from the pathways for water-soluble hormones.
   3. List the three ways in which the release of hormones is stimulated (and suppressed).
   4. Where do hormones released by the hypothalamus go?
   5. Looking at the list of hormones produced by the anterior pituitary gland, why do you suppose that it is often called the “master gland”?
   6. What two hormones produce opposite effects on blood calcium levels
   7. What two hormones are produced by the adrenal medulla, and what are their effects?
   8. What two hormones are produced by the pancreas, and what are their effects?

Answer 1

a. Hormones are the chemical messenger that travel through blood to different parts of the body and coordinating various function of the body like growth, fertility etc .

b. Steroid hormone interact with steroid receptor that is present within the cell. They do not bind with receptor present on the cell surface because cell membrane is lipid in nature, so they easily cross the membrane. On the other hand, non serious hormone have to bind with receptor present on the cell membrane surface and activate second messenger to deliver their chemical message.

c three ways are

I. Some hormone are stimulated when other glands release hormone.

II. Negative feedback mechanism

III. Depending on the body requirement

d. The hormone released by hypothalamus go to pituitary gland

e. It is known as master gland because it contro l the secretion of other gland.

f. Parathormone and calcitonin have opposite effect on blood calcium level.

g. Epinephrine and norepinephrine.

h. Insulin that decreases blood sugar level and glucagon that increases blood glucose.