Plants Parts 2 Bio2 H

Auxins are responsible for _____________ of a plant

• Colour change

• Watering

• Phototropism

• Growth

Phototropism is

• The plant response to water

• The plant response to light

• The plant response to gravity

• The plant response to soil

Which hormone promotes seed germination?

• abscisic acid

• ethylene

• gibberellin

• auxin

What happens when you place an over ripe banana in a fruit bowl with other fruit?

• Nothing will happen

• The other fruit will grow in size

• Ethylene gas will cause the fruit to grow mold

• Ethylene gas will cause the other fruit to ripen

Which plant hormone is a gas?

• auxin
• gibberellin
• ethylene
• cytokinin

Causes the enlargement of fruits

• abscisic acid

• auxin

• cytokinins

• gibberellin

• ethylene

What is the role of auxin that causes a plant to bend towards light?

• The concentration of auxin in the plant increases when there is light.

• Auxin causes uniform growth on every stem.

• Auxin causes cells that are on the dark side to grow faster.

• Auxin causes the increase in the number of plant cells.

Which of the following are plant hormones

• Auxin

• Cytokinin

• Gibberellin

• Abcissic acid, ethylene

• All

My plant is losing a lot of water because it is hot today. Which hormone should I give it so that it will stop losing water?

• Auxins

• Cytokinins

• Ethylene

• Abscisic acid

• Gibberellins

A type of plant will grow tendrils and wind round a support. Name this type of reaction.

• Tropism.

• Nastic response.

• Reflex action.

• Taxis response.