Class 10 (CBSE) · Science

Life Processes

6 practice questions with full step-by-step solutions, plus a concept-first explainer — free, no sign-up.

Read the explainer · 8 minPractise · 6 questions

What you'll learn

A friendly Class 10 walkthrough of the four life processes: how organisms get nutrition, release energy through respiration, transport materials in humans and plants, and remove wastes by excretion.

Read Life Processes — Nutrition, Respiration, Transport and Excretion

This chapter has

4
easy
2
medium

Life Processes — solved practice questions

6 Class 10 Science questions with step-by-step solutions. Attempt each, then reveal the answer.

  1. Q1easy

    The process by which green plants make their own food is called:

    • Arespiration
    • Bphotosynthesis
    • Cdigestion
    • Dtranspiration
    Show answer & solution

    Correct answer: (B) photosynthesis

    Green plants make food from CO₂ and water using sunlight — this is photosynthesis.

  2. Q2easy

    Which gas do plants take in during photosynthesis?

    • Aoxygen
    • Bcarbon dioxide
    • Cnitrogen
    • Dhydrogen
    Show answer & solution

    Correct answer: (B) carbon dioxide

    Plants absorb carbon dioxide and release oxygen during photosynthesis.

  3. Q3easy

    In humans, gas exchange (oxygen in, carbon dioxide out) mainly occurs in the:

    • Aheart
    • Blungs
    • Cliver
    • Dkidney
    Show answer & solution

    Correct answer: (B) lungs

    Gas exchange happens in the alveoli of the lungs.

  4. Q4easy

    Which organ pumps blood throughout the human body?

    • Alungs
    • Bheart
    • Cbrain
    • Dstomach
    Show answer & solution

    Correct answer: (B) heart

    The heart pumps blood around the body.

  5. Q5medium

    Which organ removes nitrogenous waste (urea) from the blood in humans?

    • Aliver
    • Bkidneys
    • Clungs
    • Dheart
    Show answer & solution

    Correct answer: (B) kidneys

    The kidneys filter the blood and remove urea, forming urine.

  6. Q6medium

    The breakdown of glucose to release energy in cells is called:

    • Aphotosynthesis
    • Brespiration
    • Cexcretion
    • Dtranspiration
    Show answer & solution

    Correct answer: (B) respiration

    Cellular respiration breaks down glucose to release energy (ATP).

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