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PU M Practice Biology Homeostasis MCQs Test 1

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PU M Practice Biology Homeostasis MCQs Test 1

Practice PU M 2026 Biology MCQs from Homeostasis. Get instant results with Explanation.

General10 MCQs

1. What is homeostasis?

A. Maintaining a stable internal environmentB. Maintaining a constant external environmentC. Changing internal environmentD. No regulation

2. What is osmoregulation?

A. Control of temperatureB. Control of water and salt balanceC. Control of blood glucoseD. Control of pH

3. What is excretion?

A. Removal of undigested foodB. Removal of urineC. Removal of metabolic waste productsD. Removal of sweat

4. Which organs are the main excretory organs?

A. LungsB. SkinC. LiverD. Kidneys

5. What is urine composed of?

A. Water, urea, salts, and waste productsB. Water onlyC. Urea onlyD. Salts only

General10 MCQs

6. Which nitrogenous waste product is formed in the liver from amino acid breakdown?

A. Uric acidB. UreaC. AmmoniaD. Creatinine

7. What is the network of capillaries in the nephron?

A. NephronB. GlomerulusC. Renal corpuscleD. Tubule

8. What surrounds the glomerulus and collects filtrate?

A. NephronB. GlomerulusC. Bowman's capsuleD. Tubule

9. What are the three processes of urine formation?

A. Filtration onlyB. Reabsorption onlyC. Secretion onlyD. Filtration, reabsorption, and secretion

10. Which process involves the recovery of useful substances from the filtrate?

A. ReabsorptionB. FiltrationC. SecretionD. Excretion

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