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Biology 12 Chapter 16 - Support and Movements - 8
1.
The movement of plant parts in response to touch is called?
Chemotropism
Phototropism
Hydrotropism
Thigmotropism
2.
Roots display ………….. geotropism and shoots …………...geotropism?
Positive, negative
Opposite, equal
None
Negative, positive
3.
The non-directional movements of parts of plant in response to external stimuli are called?
Paratonic movements
Nastic movements
Tropic movements
Growth movements
4.
Which of the following are Not the types of Nastic movements?
Epinasty and hyponasty
None
Photonasty and thermonasty
Nyctinasty and haptonastic
5.
In which of the following, the principal stimulus is the photoperiod?
Photosynthesis
Photonasty
Photolysis
Phototropism
6.
In which of the following, the principal stimulus is temperature?
Hyponasty
Thigmonasty
Thermonasty
Photonasty
7.
The movements occur in respone to contact?
Thigmotropism
Photonastic
Nyctinastic
Haptonastic
8.
Which type of movement occur in Venus fly trap?
Chemotropism
Haptonastic
Nyctinastic
Thigmotropism
9.
By which of the following, movements in plant controlled?
Chloroplast
Light
Hormones
Chemicals
10.
Which of the following is a plant hormone?
All of these
Auxins
Abscisins
Gibberellins
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