Mcqs

CBSE Class 5 Science: Nervous System and Sense Organs MCQs

Science · Class 5 · VSood

13 Class 5 questions with answers and explanations on The brain, spinal cord, reflexes, eyes and ears.

Complete the quiz and select “Check answers” to reveal the correct answers and explanations.

Quick quiz

Choose one answer for each of the 13 questions, then check your score.

Questions 1–5

1. Which two structures make up the central nervous system? A. Lungs and heart B. Brain and spinal cord C. Eyes and ears

2. Which part of the brain helps you plan what to say? A. Cerebellum B. Cerebrum C. Spinal cord

3. Which part helps keep you steady when you stand on one foot? A. Cerebellum B. Medulla C. Retina

4. Which region of the brainstem helps regulate breathing and heartbeat? A. Medulla B. Cornea C. Cerebrum

5. A finger feels the texture of a leaf. Which nerves carry the signal toward the central nervous system? A. Sensory nerves B. Tendons C. Motor nerves

Questions 6–13

6. Which nerves carry commands that make your fingers move? A. Motor nerves B. Sensory nerves only C. Optic nerves

7. Why can you pull away quickly after touching a hot pan? A. The bones sense heat and move on their own. B. A spinal reflex can trigger the movement quickly. C. The hand waits for a spoken command.

8. Which layer at the back of the eye detects light? A. Eardrum B. Retina C. Cornea

9. What does the clear cornea help do? A. Focus incoming light B. Make sound vibrations C. Detect smells

10. Which part of the ear vibrates when sound reaches it through the ear canal? A. Retina B. Earlobe C. Eardrum

11. What carries hearing signals from the inner ear toward the brain? A. Auditory nerve B. Backbone C. Optic nerve

12. What is a reflex? A. An automatic response B. A signal received only while asleep C. A movement planned in advance

13. Which part of the ear does the arrow point to? A simple ear diagram. An arrow points to the curled structure beyond the middle ear.

A. Ear canal B. Eardrum C. Cochlea

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