The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is

The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is called geotropism. Geotropism is the growth of a plant in response to gravity. The roots of the plant show positive geotropism and grow towards the direction of gravity, i.e., downwards, while the shoot of the plant shows negative geotropism and grows against the direction of gravity, i.e., upwards. This response helps the plant to anchor itself in the soil and grow towards the source of light for photosynthesis.