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Science · 2026 · 2 marks
CBSE 2026 · Region 5 · Set 1 · Q11
(A) Observe the given figure and identify the labelled parts P, Q, R and S:
Observe the given figure and identify the labelled parts $\displaystyle \mathrm{P}, \mathrm{Q}, \mathrm{R}$ and S :
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
Marking-scheme solution
(A)
P - Receptor/Skin
Q - Sensory Neuron
R - Relay Neuron
S - Effector/Muscles in arm.
OR
(B) (i) Cytokinin
(ii) Abscisic acid/ ABA
(iii) Auxin
(iv) Abscisic acid/ ABA
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.