Hormones promote growth within plants. Plant hormones are unequally distributed throughout the stems and roots, which results in parts of the plant growing in a particular direction.
What is phototropism?
Growth stimulated by water
Growth stimulated by light
Growth inhibited by light
What is positive phototropism?
Plants grow towards the light source
Plant grow away from the light source
Plant grow down towards the ground
What are auxins?
A group of plants hormones
Organelles within the plant cell
A particular species of flowering plant
What effects do auxins have on plants?
Stem cell growth and root cell growth
Stem cell inhibition and root cell growth
Stem cell growth and root cell inhibition
What happens in the process of germination?
Seeds are inactive and do not grow or develop
Seeds begin to develop and grow
Male and female gametes fuse to create new offspring
What are Gibberellins?
A specialised plant organ
A specialised part of the plant involved in wind pollination
What is the name of the gas involved in fruit ripening?
What are three uses of auxins in agriculture and horticulture?
In fertilisers, rooting powders and to promote growth in tissue culture
In weedkillers, fertilisers and rooting powders
In weedkillers, rooting powders and promote growth in tissue culture
How do selective weedkillers work? - Higher
By killing some plants but not all
By killing all plants it comes into contact with
By adding ammonium phosphate to the plants
What are three uses of gibberellins in agriculture and horticulture? - Higher
In weedkillers, encourages flowering and increases fruit size
It ends seed dormancy, encourages flowering and increases fruit size
It ends seed dormancy, inhibits flowering and increases fruit size