One of the following plant hormones is responsible for the phenomenon of phototropism in plants. This is:

What is the difference between thigmotropism and thigmonasty? Name one plant which exhibits thigmotropism and one plant which exhibits thigmonasty. What behaviour (or responses) of these plants make you think that they exhibit thigmotropism and thigmonasty respectively?

Which of the following is not a plant hormone?

The movement of a plant part in response to the force of attraction exerted by the earth is called:

The movement of sunflower in accordance with the path of the sun is due to: