Class 10 Science — Chapter 5: Life Processes
68 practice questions · 23 Easy · 23 Medium · 22 Hard
Practise Class 10 Science Chapter 5, "Life Processes", with 68 NCERT-aligned multiple-choice questions. The set is split into 23 Easy, 23 Medium and 22 Hard questions, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams and the JEE & NEET foundation years.
"Life Processes" is one of the chapters where concept clarity across physics, chemistry and biology basics really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+2 correct, −1 wrong, 0 skipped), training the same accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Life Processes, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 10 Science mastery score. A few sample questions are shown below; sign in free to practise all 68.
Key concepts: Life Processes (Class 10 Science)
Life processes are the basic functions that keep an organism alive — nutrition, respiration, transport and excretion in plants and animals.
- Nutrition
- Autotrophic (plants make food by photosynthesis) vs heterotrophic (animals take in food). Human digestion uses enzymes along the alimentary canal.
- Photosynthesis
- In chloroplasts, chlorophyll captures sunlight to convert CO₂ and water into glucose and oxygen.
- Respiration
- Aerobic respiration (with O₂) releases much more energy than anaerobic; ATP is the cell's energy currency.
- Transport in humans
- Double circulation through a four-chambered heart; arteries carry blood away, veins carry it back.
- Transport in plants
- Xylem carries water upward (transpiration pull); phloem transports food (translocation).
- Excretion
- The nephron is the functional unit of the kidney; plants remove wastes through stomata, and by shedding leaves/bark.
Key formulas — Life Processes
💡 Exam tips for Life Processes
- Double circulation means blood passes through the heart twice in one complete cycle.
- Anaerobic respiration in muscles produces lactic acid (causing cramps); in yeast it produces ethanol.
Sample questions
Which gas is released by green plants during photosynthesis?
Photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. Oxygen is the by-product.
Photosynthesis primarily occurs in the:
Chloroplasts contain chlorophyll which captures light energy.
Why do muscles cramp during heavy exercise?
When O₂ supply is insufficient, muscle cells respire anaerobically and produce lactic acid, causing cramps.
Life Processes — FAQs
What are the key concepts in Class 10 Science Life Processes?+
Life processes are the basic functions that keep an organism alive — nutrition, respiration, transport and excretion in plants and animals. Key ideas include Nutrition, Photosynthesis, Respiration, Transport in humans, Transport in plants.
What does Class 10 Science Chapter 5 (Life Processes) cover on XamBaaz?+
It covers 68 NCERT-aligned MCQs on "Life Processes" — 23 Easy, 23 Medium and 22 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams and the JEE & NEET foundation years.
Are these "Life Processes" questions free to practise?+
Yes — sign in with Google to practise "Life Processes" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Life Processes" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
Practise all 68 questions free
Timed quizzes, instant scoring, streaks and XP. Sign in with Google — no card needed.
Start this chapter free →