In the name of ALLAH, the most beneficient, the most merciful

Animal Physiology and Behavior (ZOO502)

Multiple Choice Questions (MCQs)

Objective Questions

  1. Adenohypophysis contains ________ types of glandular cells that synthesize and secrete six hormones.

    1. 5
    2. 7
    3. 9
    4. 11
  2. Oxytocin stimulates motility of the oviduct in ________.

    1. Mammals
    2. Reptiles
    3. Birds
    4. Amphibians
  3. The islets of Langerhans are found in ________.

    1. Alimentary canal
    2. Kidney
    3. Pancreas
    4. Head
  4. Somatostatin ________ the secretion of insulin and glucagon.

    1. Increases
    2. Inhibits
    3. Decreases
    4. None of the given
  5. Glycosuria is the excretion of glucose into the ________.

    1. Glycogen
    2. Blood
    3. PUS
    4. Urine
  6. ________ are involved in spermatogenesis.

    1. Sertoli Cells
    2. Beta cells
    3. Germ cells
    4. Graafian follicle
  7. Pituitary gland releases ________ hormones.

    1. 5
    2. 7
    3. 9
    4. 11
  8. Parathormone over secretion leads to ________.

    1. Softness of bones
    2. Hypocalcemia
    3. Increased excitability of neurons
    4. Muscle tetany
  9. An absolute deficiency of insulin due to loss of pancreatic beta-cells causes ________.

    1. Diabetes mellitus Type-I
    2. Diabetes mellitus Type-II
    3. cirrhosis
    4. Nephrosis
  10. Which of the following is an example of steroid hormone?

    1. Thyrotropin-releasing hormone
    2. Epinephrine
    3. Aldosterone
    4. Thyroxine
  11. Delta cells constitute ________ of islets.

    1. 60%
    2. 90%
    3. 10%
    4. 100%
  12. In many organisms, ACTH also plays role in ________.

    1. Metabolic reactions in the body
    2. Ovulation
    3. Formation of corpus luteum
    4. Circadian rhythms
  13. Salivary glands produce saliva that is delivered to the oral cavity through ________ ducts.

    1. Lacrimal and Parotid
    2. Pancreatic and submandibular
    3. Lactiferous and Lacrimal
    4. Submandibular and Parotid
  14. Adrenal cortex synthesizes and secretes a family of steroid hormones collectively called ________.

    1. Glucocorticoids
    2. Neurosteroids
    3. Corticosteroids
    4. Reproductive hormones
  15. Chromaffin cells are neuroendocrine cells found mostly in the ________ of the adrenal glands in mammals.

    1. Medulla
    2. Cortex
    3. Medulla Cortex
    4. Oblangita
  16. A color-blind person who lacks ________ cones is called a deuteranope.

    1. Green
    2. Red
    3. Blue
    4. Both green and red
  17. Amine hormones (thyroid and adrenal medullary hormones) are synthesized by the action of enzymes on amino acid ________.

    1. Glycine
    2. Tyrosine
    3. Valine
    4. Lysine
  18. Major stimulus for the beta cells to secrete insulin is high blood ________ level.

    1. Glucose
    2. Creatinine
    3. RBCs
    4. Alanine
  19. The genes for ________ cone pigments are closely linked on the X chromosome.

    1. Red and green
    2. Green and Blue
    3. Blue and Red
    4. Red, Green and Blue
  20. Which of the following is an example of Apocrine secretions?

    1. Mammary gland
    2. Sweat gland
    3. Digestive gland
    4. Sebaceous gland
  21. Which of the following hormone acts as enteric neurotransmitter?

    1. Chymodenin
    2. Gastrin
    3. Secretin
    4. Substance P