Which type of movement is shown by a shoot bending towards light?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Phototropism
A tropism is a growth movement of a plant part towards or away from a stimulus. A shoot grows towards light, so this is phototropism (photo = light).
Why the other options are incorrect
Option (1) Chemotropism — Incorrect. Movement in response to chemicals, such as a pollen tube growing towards the ovule.
Option (3) Geotropism — Incorrect. Movement in response to gravity, such as roots growing downwards.
Option (4) Hydrotropism — Incorrect. Movement in response to water, such as roots growing towards moist soil.