Science Quiz on Plant Responses

How do plants respond to water in hydrotropism?

• They grow towards the water

• They grow away from the water

• They remain unaffected by water

• They change color in response to water

What is the purpose of phototropism in plants?

• To help plants absorb water from the soil

• To protect plants from predators

• To help plants reproduce through pollination

• To help plants grow towards a light source

What is the purpose of thigmotropism in plants?

• To help plants absorb water from the soil

• To protect plants from predators

• To help plants reproduce through pollination

• To help plants grow towards a light source

What is the purpose of hydrotropism in plants?

• To help plants absorb water from the soil

• To protect plants from predators

• To help plants reproduce through pollination

• To help plants grow towards a light source

How do plants respond in geotropism/gravitropism

• Plant's response to gravity

• Plant's response to light

• Plant's response to touch

• Plant's response to water

When a plant grows in response to a stimulus, it is referred to as _______________.

• respiration

• photosynthesis

• tropism

• circulation

If a plant grows toward a light source, then it is said to be displaying ____________.

• Positive phototropism

• Negative geotropism

• Negative phototropism

• Positive hydrotropism

What part of the plant responds positively to water?

• A

• B

• C

• D

What tropism is shown by the makahiya plant in the picture

• Phototropism

• Gravitropism

• Thigmotropism

• Hydrotropism

What force causes part D to grow downward?

• push

• gravity

• heat

• kinetic energy