Tropism

The video explains how plants grow in specific directions in response to external stimuli, a phenomenon known as tropism. It covers different types of tropisms: phototropism, where shoots grow towards light; geotropism, where roots grow in the direction of gravity; hydrotropism, where roots grow towards water; and thigmotropism, where vines and tendrils coil around objects upon contact. These growth responses help plants adapt to their environment and obtain necessary resources.

What is the term for a plant's growth response to an external stimulus?

• Photosynthesis

• Tropism

• Metabolism

• Respiration

Which type of tropism involves plant shoots growing towards light?

• Phototropism

• Hydrotropism

• Thigmotropism

• Geotropism

In which direction do roots grow in response to gravity?

• Towards gravity

• Away from gravity

• Towards light

• Away from water

What is the term for roots growing towards water?

• Hydrotropism

• Thigmotropism

• Phototropism

• Geotropism

What is the response called when vines and tendrils coil around other plants?

• Phototropism

• Geotropism

• Hydrotropism

• Thigmotropism