✓ Board-verified
Science · 2024 · 2 marks
CBSE 2024 · Region 1 · Set 3 · Q21
(A)Write the significance of peripheral nervous system in human beings.(ii)How is human brain protected from mechanical injuries and shocks?Name one directional growth movement each in response to chemicals and water in plants. Write an example for each of them.
(A)
Write the significance of peripheral nervous system in human beings.
(ii)
How is human brain protected from mechanical injuries and shocks?
Name one directional growth movement each in response to chemicals and water in plants. Write an example for each of them.
Marking-scheme solution
(A)
The communication between the central nervous system and the other parts of the body is facilitated by the peripheral nervous systems.
(ii)
protected in a bony box/skull//cranium/fluid filled balloon like structure which provides shock absorption.
Chemotropism ; eg. growth of pollen tubes towards the ovules. Hydrotropism ; eg. growth of roots towards water.
More from Control and Coordination
- Assertion: In our actions of writing or talking, our nervous system communicates with the muscles. Reason…2025 · asked 3×
- (i) Define a reflex arc. Why have reflex arcs evolved in animals? Trace the sequence of events which occur,…2024 · asked 3×
- How is brain protected in our body? A doctor finds in one of his patients that he is not maintaining a proper…2025 · asked 3×
- The plant hormone whose concentration stimulates the cells to grow longer on the side of the shoot which is…2025 · asked 3×
- Select from the following the correct statement about tropic movement in plants:2023 · asked 3×
- A person while climbing up a rocky hill comes into a panic state and fear. His body starts reacting in a…2025 · asked 3×
- Sense organ in which olfactory receptors are present is:2024 · asked 3×
- The growth movements of plant parts in which the direction of the stimulus determines the direction of the…2025 · asked 3×
CBSE Class 10 Science past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.