MCQs on Excretory System:
The excretory system is a fundamental physiological system in the human body liable for removing metabolic waste products, overabundance substances, and toxins to keep up the internal balance.
It includes kidneys, ureters, bladder, and urethra. Blood is filtered to create urine, which the body eventually excretes. It likewise controls water and electrolyte balances.
This system assume the pivotal part in supporting homeostasis and guaranteeing the legitimate working of different physical process.
This arrangement of Various Decision Questions (MCQs) is intended to give you a superior comprehension about how our body cleans and oversees squander. How about we investigate the excretory framework and test your insight!
Mcqs:
1. What is the primary function of the excretory system?
a) Digestion
b) Filtration
c) Respiration
d) Circulation
Answer: b) Filtration
2. The organ which is responsible for filtering blood in the excretory system is:
a) Liver
b) Kidney
c) Lungs
d) Stomach
Answer: b) Kidney
3. The functional unit of the kidney responsible for urine formation is:
a) Nephron
b) Alveoli
c) Neuron
d) Bronchus
Answer: a) Nephron
4. Which substance is primarily excreted through urine?
a) Oxygen
b) Carbon dioxide
c) Urea
d) Glucose
Answer: c) Urea
5. Where does the urine produced by the kidneys get stored before being eliminated?
a) Urethra
b) Bladder
c) Ureter
d) Stomach
Answer: b) Bladder
6. What triggers the release of antidiuretic hormone (ADH) in the excretory system?
a) Low blood pressure
b) High blood sugar
c) Dehydration
d) Excessive salt intake
Answer: c) Dehydration
7. Which of the following is a common disorder of the excretory system?
a) Asthma
b) Diabetes
c) Arthritis
d) Kidney stones
Answer: d) Kidney stones
8. What role play by urethra in the excretory system?
a) Filtration
b) Storage
c) Elimination
d) Absorption
Answer: c) Elimination
9. Which electrolyte is important for maintaining proper kidney function?
a) Calcium
b) Sodium
c) Potassium
d) Iron
Answer: c) Potassium
10. What is the normal pH range of urine in a healthy individual?
a) 1-3
b) 4-6
c) 7-8
d) 9-11
Answer: b) 4-6
11. Which hormone control the reabsorption of water in the kidneys?
a) Insulin
b) Thyroxine
c) Aldosterone
d) Estrogen
Answer: c) Aldosterone
12. What term is used to describe the process of expelling urine from the body?
a) Micturition
b) Secretion
c) Filtration
d) Absorption
Answer: a) Micturition
13. In which portion of the nephron does filtration of blood happen?
a) Glomerulus
b) Renal tubule
c) Bowman's capsule
d) Collecting duct
Answer: a) Glomerulus
14. Which of the following can lead to kidney damage in the excretory system?
a) Hydration
b) Regular exercise
c) Hypertension
d) Vitamin C intake
Answer: c) Hypertension
15. What is the purpose of the ureter in the excretory system?
a) Filtration
b) Storage
c) Transport urine to the bladder
d) Absorption
Answer: c) Transport urine to the bladder
16. What is the role of sweat glands in excretion?
a) Excreting urea
b) Excreting salts and water
c) Filtration of blood
d) Storing urine
Answer: b) Excreting salts and water
17. Which organ assists in controlling blood pressure as part of the excretory system?
a) Liver
b) Spleen
c) Heart
d) Kidneys
Answer: d) Kidneys
18. The capability of the renal pelvis in the excretory Framework
a) Filtration
b) Storage
c) Transportation of urine
d) Absorption
Answer: c) Transportation of urine
19. The substance which is a waste product of protein metabolism excreted by the kidneys is:
a) Glucose
b) Urea
c) Oxygen
d) Carbon dioxide
Answer: b) Urea
20. What can be a consequence of prolonged kidney dysfunction in the excretory system?
a) Improved metabolism
b) Anemia
c) Enhanced immune function
d) Increased bone density
Answer: b) Anemia
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