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- 1. Multiple Choice
In the story 'Jack and the beanstalk', Jack grew a beanstalk that grew way into the clouds. If I wanted to try and grow one myself, which plant hormone would I give my beanstalk?
Cytokinesis
Ethylene
Auxins
Gibberellins
- 2. Multiple Choice
Auxins are responsible for _____________ of a plant
Colour change
Watering
Phototropism
Growth
- 3. Multiple Choice
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
- 4. Multiple Choice
Phototropism is
The plant response to water
The plant response to light
The plant response to gravity
The plant response to soil
- 5. Multiple ChoiceThe root of a plant growing down.Positive GravitropismNegative GravitropismThigmotropismHydrotropism
- 6. Multiple Choice
what type of tropism is occurring here?
phototropism
thigmotropism
geotropism
tropictropism
- 7. Multiple Choice
which plant hormone produces opposite effects?
dormancy and cotyledons
dormancy and germination
auxin and cytokins
auxins and ethylene
- 8. Multiple ChoiceWhich plant hormone is a gas?auxingibberellinethenecytokinin
- 9. Multiple Choice
Which of the following are plant hormones
Auxin
Cytokinin
Gibberellin
Abcissic acid, ethylene
All
- 10. Multiple ChoiceWhich hormone promotes seed germination?abscisic acidethylenegibberellinauxin
- 11. Multiple ChoiceNegative gravitropism is exhibited in ____, because there is more auxin on _____ side of a shoot.shoots, shadedshoots, lightroots, shadedroots, light
- 12. Multiple ChoiceHelps fruit ripenAuxinGibberellinCytokininsEthene
- 13. Multiple Choice
What is the reaction that is shown by the plant in the figure above?
Positive hydrotropism.
Negative phototropism.
Positive thigmotropism.
Negative geotropism.
- 14. Multiple Choice
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.
- 15. Multiple Choice
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.
- 16. Multiple Choice
The figure above shows an experiment
that is done on two plants of the same species. Both plants are left in the open.
What will happen to the two plants after two weeks
I Plant B bends towards the opening of
the box.
II The auxin in stem A is distributed
uniformly.
III The auxin in stem B is not distributed
uniformly.
IV Plant A bends to the right.
I, II and III only.
I, II and IV only.
I, III and IV only.
II, III and IV only.
- 17. Multiple Choice
The figure below above shows an experiment to study the effect of auxin towards the growth of the coleoptiles. Which of the following conclusions are true about the experiment?
I Auxin is produced at the tip of the
coleoptiles and diffuses to the bottom to stimulate
growth.
II The supply of auxin is cut off in the
dark.
III Auxin cannot penetrate a mica plate.
IV Auxin can diffuse through a block of
agar-agar.
I, II and III only.
I, III and IV only.
II, III and IV only.
I, II, III and IV.
- 18. Multiple Choice
When creating seedless fruit, what type of flowers are sprayed with ethylene gas?
pollinated
unpollinated
older
small
- 19. Multiple Choice
What does rooting hormone powder do?
encourages growth of flowers
encourages growth of stems
inhibits growth of roots
encourages growth of roots
- 20. Multiple Choice
Stimulates cell division
abscisic acid
auxin
cytokinins
gibberellin
ethylene
- 21. Multiple Choice
Inhibits cell division
abscisic acid
auxin
cytokinins
gibberellin
ethylene
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