(A) Observe the given figure and identify the labelled parts P, Q, R and S.
OR
(B) Which of the plant hormones are responsible for the following processes?
(i) Promote cell division
(ii) Inhibition of growth
(iii) Detection of light
(iv) Wilting of leaves
(A) Observe the given figure and identify the labelled parts P, Q, R and S.
OR
(B) Which of the plant hormones are responsible for the following processes?
(i) Promote cell division
(ii) Inhibition of growth
(iii) Detection of light
(iv) Wilting of leaves
Official answer
The labelled parts P, Q, R and S are as follows: P - Brain, Q - Spinal cord, R - Message to brain, S - Message to spinal cord.
Marking scheme
- 1.P - Brain
- 2.Q - Spinal cord
- 3.R - Message to brain
- 4.S - Message to spinal cord
Hint
The figure shows the flow of messages between the brain and spinal cord.
Quick oral answer
The labelled parts P, Q, R and S are as follows: P - Brain, Q - Spinal cord, R - Message to brain, S - Message to spinal cord.
Common mistakes
- 1.confusing the brain and spinal cord
- 2.not understanding the flow of messages
Analysis and explanation
The figure illustrates the flow of messages between the brain and spinal cord. The brain sends messages to the spinal cord through the spinal cord (Q), and the spinal cord sends messages to the brain through the message to brain (R). The message to spinal cord (S) is sent from the brain to the spinal cord.
Interesting facts
The brain and spinal cord are connected by the spinal cord.
The brain sends messages to the spinal cord through the spinal cord.
The spinal cord sends messages to the brain through the message to brain.
Question details
Q12 of 39 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2026
- Section
- Section A
- Marks
- 2
- Type
- Short Answer
- Chapter
- Chemical Reactions and Equations
- Topic
- Chemical Reactions and Equations
- Bloom's level
- Knowledge
- Syllabus topic
- Chemical Reactions and Equations
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2026?
This question carries 2 marks in the CBSE Class 10 Science 2026 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Chemical Reactions and Equations" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Chemical Reactions and Equations" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2026 paper?
This is a Short Answer question from Section A in the CBSE Class 10 Science 2026 paper.