WorksheetsAP Bio: Plant Hormones 15Q
Total questions: 15
Worksheet time: 9mins
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
Promotes seed dormancy
abscisic acid
auxin
cytokinins
gibberellin
ethylene
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
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.
Stimulates cell division and
lateral (<---->) growth
abscisic acid
auxin
cytokinins
gibberellin
ethylene
Active transport is the movement of substances
from an area of lower concentration to higher concentration
from an area of lower concentration to lower concentration
from an area of higher concentration to lower concentration
from an area of higher concentration to higher concentration
What is the reaction that is shown by the plant in the figure above?
Positive hydrotropism.
Negative phototropism.
Positive thigmotropism.
Negative geotropism.
A type of plant will grow tendrils and wind round a support. Name this type of reaction.
Tropism.
Nastic response.
Reflex action.
Taxis response.
The figure above shows a mimosa plant. What is the conclusion that can be derived based on the reaction in the figure.
The mimosa plant shows a seismonastic reaction.
The leaf of the mimosa becomes sturgid when touched.
The osmotic pressure in the mimosa cell increases when touched.
The temperature of the glass rod becomes very high until the leaf fades when touched.
The figure above shows four coleoptiles P, Q, R and S that are exposed to unilateral light. After two days, which coleoptile will move towards the light?
P only.
R only.
P and R only.
P, Q and S only.
