PYQ Vault

Day 216: CBSE Class 10 Science

5 questions. Try each one first, then open its answer.

  1. Question 1

    Control and Coordination. Asked once: 2023 (same type asked 4 times)

    22 (A)
    Name the part of brain which is responsible for the following actions : (i) Maintaining posture and balance (ii) Beating of heart (iii) Thinking (iv) Blood pressure

  2. Question 2

    Electricity. Asked once: 2022 (same type asked 4 times)

    4 (b)
    Calculate the equivalent resistance of the following electric circuit :

  3. Question 3

    How do Organisms Reproduce?. Asked once: 2023 (same type asked 4 times)

    35
    (i) Name and explain the two modes of asexual reproduction observed in hydra. (ii) What is vegetative propagation ? List two advantages of using this technique.

  4. Question 4

    Life Processes. Asked once: 2023 (same type asked 4 times)

    22
    State the role of the following in the process of digestion : (a) Bile juice and bile salts (b) Pancreatic enzymes

  5. Question 5

    Life Processes. Asked once: 2023 (same type asked 4 times)

    29 (a)
    (i) What is the first step in the breakdown of glucose during aerobic and anaerobic respiration ? Where does it take place ? (ii) ATP is called the energy currency of the cell. Why ? (iii) What is meant by “residual volume of air” in a breathing cycle ?