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Worksheets9-1 Plant hormones
Total questions: 10
Worksheet time: 7mins
What term describes the responses made by plants to environmental stimuli?
(a)
Identify the hormone that controls growth near the tips of shoots and roots
Gibberellin
Auxin
Ethene
Thyroxine
What term describes plant growth in response to gravity?
(a)
Which of the following is a function of ethene?
It can be used to alter dormancy
It stimulates seed germination
It induces flowering
It stimulates the enzyme that causes fruit to ripen
Auxin can be used artificially for which of the following?
As a selective weedkiller
To induce flowering
To stimulate dormancy
For growing larger fruit
Which of the following is a response to light?
Hydrotropism
Gravitropism
Phototropism
Germination
Gibberellin can be used for which of the following??
As a hormone in rooting powder
To induce flowering
To stimulate ripening of fruit
As a selective weedkiller
State a procedure that can be used to grow clones of plants in a medium containing auxin and nutrients
(a)
In shoots auxin will cause which of the following?
Growth inhibition
Germination
Cell elongation
Flowering
Where in a plant is auxin produced?
In flowers
In dormant seeds
In root tips
In all cells
