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Homeostasis

Written by Dr. Hira Salman (Biology)

Class 12 · Biology · 8 questions

Name: ____________________   Date: ____________

  1. The functional unit of the kidney is the:

    • A Nephron
    • B Villus
    • C Neuron
    • D Alveolus

  2. Filtration of blood in the nephron takes place in the:

    • A Collecting duct
    • B Glomerulus
    • C Loop of Henle
    • D Ureter

  3. ADH makes the kidney:

    • A Stop filtering
    • B Reabsorb more water
    • C Lose more water
    • D Produce more urea

  4. Thermoregulation in humans is controlled by the:

    • A Cerebellum
    • B Hypothalamus
    • C Medulla only
    • D Pituitary only

  5. Nitrogenous waste of humans is mainly:

    • A Creatinine only
    • B Ammonia
    • C Uric acid
    • D Urea

  6. The liver converts excess glucose into:

    • A Starch
    • B Cellulose
    • C Glycogen
    • D Urea

  7. Osmoregulation controls the body's:

    • A Height
    • B Blood colour
    • C Water and salt balance
    • D Weight only

  8. A hormone that lowers blood glucose is:

    • A Adrenaline
    • B Thyroxine
    • C Insulin
    • D Glucagon

Answer key

1. A, 2. B, 3. B, 4. B, 5. D, 6. C, 7. C, 8. C

  1. A nephron filters blood and forms urine.

  2. Blood is filtered under pressure into Bowman's capsule.

  3. Antidiuretic hormone increases water reabsorption in the collecting duct.

  4. The hypothalamus acts as the body's thermostat.

  5. Urea is made in the liver.

  6. Glycogen is stored in the liver.

  7. Kidneys regulate water and ions.

  8. Insulin promotes glucose uptake.