Lesson 4.5.4.2
4.5.4.2 Use of plant hormones (HT only) Quiz: AQA Biology, Unit 5
20 questions
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Lesson 4.5.4.2, Use of plant hormones (HT only): 20 multiple choice questions for the AQA GCSE Biology (8461), Unit 5: Homeostasis and response, written with Revision Ninja.
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The 20 questions
-
Which plant growth hormone is used as a weed killer?
- Ethene
- Auxin
- Thyroxine
- Gibberellin
-
Which plant hormone is used as a rooting powder?
- Gibberellin
- Auxin
- Ethene
- Adrenaline
-
What process is ethene used to control in the food industry?
- Fruit ripening
- Tissue culture
- Seed germination
- Weed destruction
-
Which of the following is a commercial use of gibberellins?
- Killing broad-leaved weeds
- Stimulating root growth
- Fruit ripening
- Promoting flowering
-
Which hormone can be used to increase fruit size?
- Thyroxine
- Gibberellin
- Ethene
- Auxin
-
Auxins used as weed killers have an effect on which broader concern?
- Biodiversity
- Global temperature
- Soil nitrogen levels
- Oxygen production
-
A farmer wants seeds to stop being dormant before planting. Which hormone is most suitable?
- Ethene
- Gibberellin
- Auxin
- Adrenaline
-
A shop wants fruit to ripen evenly during transport. Which plant hormone is used?
- Ethene
- Gibberellin
- Auxin
- Thyroxine
-
Which chemical product contains auxin to help stem cuttings form roots?
- Rooting powder
- Ripening spray
- Seed coating
- Weedkiller
-
Which method uses small groups of plant cells and auxin to grow identical plants?
- Embryo transplants
- Cuttings
- Adult cell cloning
- Tissue culture
-
Plant growth hormones are mainly used in which two industries?
- Food manufacturing
- Agriculture and horticulture
- Medicine and pharmacy
- Forestry and conservation
-
What state are seeds in when they do not germinate until conditions change?
- Senescence
- Dormancy
- Tropism
- Photoperiodism
-
Why can using auxin-based weedkillers reduce biodiversity in an ecosystem?
- Speeds up decay
- Stops seed germination
- Increases soil pH
- Kills non-target plants
-
Which commercial use is directly stimulated by gibberellins?
- Promoting flowering
- Rooting cuttings
- Ripening fruit
- Killing weeds
-
Which set of plant hormones is widely used in agriculture and horticulture?
- Adrenaline, gibberellins, ethene
- Auxins, ethene, gibberellins
- Auxins, glucagon, gibberellins
- Auxins, insulin, thyroxine
-
What primary effect does auxin rooting powder have on plant cuttings?
- Stimulates root growth
- Prevents fungal infection
- Promotes fruit ripening
- Kills surrounding weeds
-
How do auxin-based weedkillers harm food webs in wild habitats?
- Blocking stem elongation
- Killing wild plants
- Poisoning primary consumers
- Preventing fruit ripening
-
What is the main practical application of plant tissue culture?
- Ending seed dormancy
- Ripening stored fruit
- Killing unwanted weeds
- Cloning plant cells
-
How do seeds treated with gibberellin compare to untreated seeds in soil?
- Grow larger leaves
- Produce thicker roots
- Germinate sooner
- Ripen faster
-
Which plant hormone is used to control fruit ripening during transport?
- Cytokinin
- Auxin
- Ethene
- Gibberellin
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