Plant Movement and Responses

The video tutorial explores the fascinating movements of plants, focusing on tropic and nastic movements. Tropic movements are directional responses to stimuli like light, gravity, and water, with examples such as phototropism and geotropism. Nastic movements, on the other hand, are non-directional and reversible, responding to stimuli like touch and light intensity. The video provides examples of these movements in various plants, including the Telegraph plant and Venus flytrap, and concludes with a summary of the key concepts covered.

What is the primary focus of this module on plant movements?

• To explain the types of plant movements

• To study the lifecycle of plants

• To explore plant growth patterns

• To understand animal movements

What is the term for plant movement towards a light source?

• Geotropism

• Phototropism

• Thigmotropism

• Hydrotropism

How do roots typically respond to gravity?

• They grow downwards

• They do not respond

• They grow sideways

• They grow upwards

What is the movement of tendrils towards a solid object called?

• Hydrotropism

• Thigmotropism

• Geotropism

• Phototropism

Which type of tropism involves plant roots growing towards moisture?

• Geotropism

• Hydrotropism

• Thigmotropism

• Phototropism

What distinguishes nastic movements from tropic movements?

• Nastic movements are irreversible

• Nastic movements are non-directional

• Nastic movements are growth-related

• Nastic movements are directional

Which plant is known for its rapid leaf movement in response to touch?

• Sunflower

• Mimosa

• Tulip

• Morning Glory

What happens to the leaves of oxalis in response to light intensity?

• They change color

• They open in daylight

• They open in low light

• They fold in high light

Which of the following flowers bloom during the day and close in the evening?

• Lilies

• Sunflowers

• Roses

• Daisies

What is the main difference between tropic and nastic movements?

• Nastic movements are irreversible

• Tropic movements are directional

• Nastic movements are growth-related

• Tropic movements are reversible