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AQA GCSE Biology Plant Hormones Flashcards | StudBud

Explore/AQA GCSE Biology Plant Hormones

What is phototropism?

What are auxins?

AQA GCSE Biology Plant Hormones

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Answers

1
What are auxins?
Organelles within the plant cell
A group of plants hormones
A particular species of flowering plant
2
What is phototropism?
Growth inhibited by light
Growth stimulated by water
Growth stimulated by light
3
What are three uses of gibberellins in agriculture and horticulture?
In weedkillers, encourages flowering and increases fruit size
It ends seed dormancy, inhibits flowering and increases fruit size
It ends seed dormancy, encourages flowering and increases fruit size
4
What effects do auxins have on plants?
Stem cell inhibition and root cell growth
Stem cell growth and root cell inhibition
Stem cell growth and root cell growth
5
What is positive phototropism?
Plant grow down towards the ground
Plant grow away from the light source
Plants grow towards the light source
6
What is the name of the gas involved in fruit ripening?
Methane
Oxygen
Ethene
7
What happens in the process of germination?
Seeds begin to develop and grow
Seeds are inactive and do not grow or develop
Male and female gametes fuse to create new offspring
8
How do selective weedkillers work?
By killing all plants it comes into contact with
By killing some plants but not all
By adding ammonium phosphate to the plants
9
What are gibberellins?
A specialised part of the plant involved in wind pollination
A specialised plant organ
A group of plants hormones
10
What are three uses of auxins in agriculture and horticulture?
In weedkillers, rooting powders and promote growth in tissue culture
In weedkillers, fertilisers and rooting powders
In fertilisers, rooting powders and to promote growth in tissue culture