Multiple-Choice Choose the one alternative that best completes the statement or

Question

Multiple-Choice Choose the one alternative that best completes the statement or answers the question 1. Which of the following systems work closely with the endoerine system to-coordinate the body's functions? A) Cardiovascular system B) Respiratory system C) Reproductive system D) Nervous system E) Lymphatic system 2. All of the following are endocrine glands EXCEPT A) adrenal glands. B) sebaceous glands. C) parathyroid glands. D) pineal glands. E) pituitary glands. 3. Which of the following organs contain hormone producing cells? A) stomach B) liver C) skin D) All of the above. E) None of the above A second messenger in the action of many water-soluble hormones such as peptides is A) tRNA. B) ATP C) CAMP. D) PTH. E) CoA. 4. Prostaglandins chemically belong to the class of A) steroid hormones. B) eicosanoids. C) peptides D) proteins. E) amines. 5.

Explanation / Answer

1.D.Nervous system

2.B.Sebaceous glands

Sebaceous glands are exocrine glands, since they utilize ducts to secrete sebum

3.D.All of the above

4.cAMP

Cylic AMP (cAMP) is a water-soluble second messenger

5.B.eicosanoids

There are four families of eicosanoids—the prostaglandins, prostacyclins, the thromboxanes and the leukotrienes.

6.A.estrogens

sex hormone steroids estrogens and androgens, are fat soluble

7.A.lipid soluble

8.E.Calcitonin and ATP

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