(a) List two differences between the movement of leaves of a sensitive plant and the movement of a shoot towards light.

OR

(b) What happens at synapse between two neurons? State briefly.

(a) Two differences between the movement of leaves of a sensitive plant and the movement of a shoot towards light are:

1. The movement of leaves of a sensitive plant is independent of growth, whereas the movement of a shoot towards light is dependent on growth.
2. The movement of leaves of a sensitive plant is a rapid response to touch, whereas the movement of a shoot towards light is a slow response to light.

OR

(b) At synapse between two neurons, the electrical impulse from the dendrite of one neuron is converted into a chemical signal, which is then transmitted to the dendrite of another neuron.