Photosynthesis and Plant Responses: Plant Responses

The video explores how plants respond to environmental stimuli through tropisms. It covers phototropism, where plants grow towards or away from light, gravitropism, where roots grow in response to gravity, and figmatropism, where plants react to touch. The video concludes with a brief mention of photosynthesis and plant growth.

What is a stimulus in the context of plant behavior?

• A specific type of plant cell

• A type of plant hormone

• Anything in the environment causing a change in behavior

• A nutrient required for plant growth

Which of the following is an example of positive phototropism?

• Roots growing away from light

• Sunflowers following the sun

• Leaves folding inward when touched

• Roots growing downward

What is the term for a plant's response to gravity?

• Phototropism

• Gravitropism

• Figmatropism

• Hydrotropism

How do roots typically respond to gravity?

• They grow sideways, avoiding gravity

• They grow upward, against gravity

• They do not respond to gravity

• They grow downward, with gravity

What happens to a mimosa leaf when it is touched?

• It folds inward

• It changes color

• It grows taller

• It releases a scent