Class 10 Science Chapter 5 Life Processes: Excretion Concept Clarity MCQs with Answers

  Practice these Concept Clarity MCQs from Class 10 Science Chapter  5 Life Processes: Excretion to strengthen your understanding of important NCERT concepts.

These CBSE-based concept-focused MCQs are designed to improve conceptual understanding rather than rote learning.

Solve these questions to test your knowledge of Life Processes: Excretion, and important applications, and prepare effectively for school and CBSE board examinations.

Life Processes: Excretion Concept Clarity MCQs with Answers

Q1. Which of the following is not a part of human excretory system?
a) Ureter (b) Urethra (c) Urinary bladder (d) Renal Artery

Q2. Each capillary cluster in the kidney is associated with which of the following?
a) Bowman's Capsule (b) Loop of Henle (c) Collecting Duct (d) None of these

Q3. The filtration of blood in a nephron begins in the.............
a) Loop of Henle (b) Collecting duct (c) Glomerulus (d) Ureter

Q4. Which of the following substances is normally reabsorbed from the filtrate?
 a) Urea only
b) Glucose and amino acids
c) Carbon dioxide only
d) Uric acid only

Q5. Which of the following pairs is incorrectly matched?
a) Human – Urea
b) Bird – Uric acid
c) Freshwater fish – Ammonia
d) Lizard – Ammonia

Q6. Which adaptation is most directly associated with the excretion of uric acid in birds?
a) Efficient gaseous exchange
b) Conservation of water and reduced body weight
c) Faster digestion
d) Increased oxygen transport

Q7. Waste products move from blood into the dialysing fluid mainly by:
a) Active transport (b) Osmosis (c) Diffusion (d) Filtration

Q8. Which function of a natural kidney is NOT performed by an artificial kidney?
a) Removal of nitrogenous wastes
b) Purification of blood
c) Selective reabsorption of useful substances
d) Diffusion of wastes

Q9. Resins and gums are commonly stored in:
a) Phloem (b) Root hairs (c) Old xylem (d) Stomata

Q10. Which statement is correct?
a) Plants excrete all wastes through stomata only.
b) Plants can release some waste substances into the surrounding soil.
c) Plants store wastes only in roots.
d) Plants do not remove oxygen.

🧠 TopperGuru1 Concept Check

Before checking the answer key, ask yourself these two questions for every MCQ:
✅ Why is the correct option right?
✅ Why are the other three options wrong?
If you can explain both, your concept is truly clear. If not, revise the related NCERT concept and try again.
Remember: Real learning happens when you understand the reason, not when you memorize the answer. 

Answer Key: 
1-d, 2-a, 3-c, 4-b, 5-d, 6-b, 7-c, 8-c, 9-c, 10-b

These Concept Clarity MCQs from Class 10 Science Chapter 5 Life Processes: Excretion are designed to strengthen your understanding of important NCERT concepts rather than just test memorization. Regular practice of such application-based questions will help you build a strong conceptual foundation and perform better in school as well as CBSE board examinations.

For better preparation, also practice Assertion-Reason Questions, Case-Based Questions, One-Word Questions, Numericals, and Previous Year Questions from this chapter to achieve complete mastery of the topic

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