(A) Observe the given figure and identify the labelled parts P, Q, R and S: [figure]

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

Quick Oral Answer

The figure shows a neuron with its different parts labeled. The dendrite (P) is the part of the neuron that receives signals from other neurons. The axon (Q) is the long, thin extension of the neuron that carries signals away from the cell body. The cell body (R) is the central part of the neuron where the nucleus is located. The synapse (S) is the gap between two neurons where chemical signals are transmitted from one neuron to another.