Question

Odd #'s Only Question Help

MULTIPLE CHOICE & Which hormone is produced in the hypothal a. Adrenocorticotropic hormone b. Anti-diuretic hormone c. Luteinizing hormone d. Growth hormone 1. Which set of messengers acts on neighboring cells within the same tissue? a Autocrines b. Paracrines c. Hormones d. None of the above al poral system Hormones secreted into the hypophyseal portal detected by the a Posterior pituitary b. Anterior pituitary c. Median eminence d. Infundibulum 2. Which set of messengers acts on neighboring cells within the same tissue? a Autocrines b. Paracrines C. Hormones d. None of the above 10. Secretions from the corticotrophs activate cells while secretions from the gonadotrook affect cells of the a Thyroid; mammary glands b. Adrenal medulla; gonads c. Adrenal cortex, gonads d. Mammary glands, gonads 3. The main difference between hormones and neurotransmitters is that hormones reach their objective a Target cell b. Blood c Cerebrospinal fluid d Ducts 11. A patient is displaying polyuria, polydipsia and polyph In addition to these symptoms, there is an instance severe dehydration. The most likely cause is a. Hypersecretion of ADH b. Hyposecretion of ADH c. Hypersecretion of oxytocin d. Hyposecretion of oxytocin 4. A major determinant of a hormone's mechanism of action a b. C. d Physical property Size Rapid acting or slow acting Gene activation 12. Sam is losing weight rapidly, sweating profiel and experiences anxiety. Sam may be suffering from 5. Receptors for steroid hormones are located a. In the blood plasma b. In the cytosol c. On the plasma membrane d. In the extracellular fluid a Hypoparathyroidism b Hyperparathyroidism c. Hyperthyroidism d Hypothyroidism 6. Interaction with a membrane-bound receptor will transduce the hormonal message via Second messenger b. Repolarization c. Direct gene activation d. Endocytosis e. Exocytosis 13. Occasionally, Vanessa will experience hirsutis, excessive facial hair growth. However, blood tests reveal that her levels of testosterone are normal for a female Another explanation of this abnormality is caused by the hypersecretion of a Gonadocorticoids b Catecholamines c. Mineralocorticoids d Glucocorticoids 7. To activate a target cell, a hormone must possess a a Second messenger b. Neurotransmitter C. Hormone d. Receptor 14. What adrenal hormone responsible for maintain appropriate blood sodium levels? a. Epinephrine b. Cortisol c. DHEA d Aldosterone

Answer 1

1. Paracrine messengers.

They secrete substances which effect the functioning of the neighboring cells.

2. paracrine.

These are the secretions produced by neighboring cells effecting the cells present in the vicinity.

3. c. Blood.

Hormones are released in to blood to reach the target organs of the body.

4. d.

Hormones effect the functioning of the cell by either activating genes or inactivating genes.

5. c. Cytosol.

Steroid hormones can easily pass through the cell membrane and enter in to the cell. That is why the receptors are present with in the cytosol of the cell.

6. a. Second messenger.

When a hormone binds to the receptor present on the cell surface, a second messenger molecule is released in to the cytoplasm of the cell which interacts with various other chemicals bringing cellular functions.

7. a. Second messenger.

To activate a target cell, a hormone must produce a second messenger in to the cytoplasm.

8. a. Anti diuretic Hormone.

All other hormones are produced by anterior pituitary.

9.b. Anterior pituitary.

Hormones of the hypothalamus are released in to the hypophysial portal vein which reach anterior pituitary.

10. c. Adrenal cortex and gonads.

Corticotrophic hormones activate the adrenal cortex. Gonadotrophic hormones activate the gonads.

11. b. Hyposecretion of ADH.

ADH hormone helps in reabsorbing water from the kidneys in to blood. In the absence of the hormone, excess urination, dehydration, thirsty etc symptoms are observed.

12.d. Hyperthyroidism.

Hyperthyroidism secrets more thyroxin leading higher body metabolism. That is why the person is loosing weight and other symptoms.

13. a. Gonado corticoids.

Gonado corticoids are androgens bringing male characters. If excess gonado corticoids are secreted in female, she will develop male characters.

14. d. Aldosterone.

Aldosterone is the hormone secreted when Na levels in blood are lower. This helps in reabsorption of Na from the kidney.