Control and Coordination in Plants
Control and Coordination in Plants
Questions
Question 1 Multiple Choice (Single Answer)
Which of the following is promoted by abscisic acid?
- Flower initiation
- Stem elongation
- Detachment of leaves, fruits and flowers
- Bud formation
Question 2 Multiple Choice (Single Answer)
The drooping or folding of legume leaves in the dark is called
- temporary wilting
- nyctinasty
- seismonasty
- permanent wilting
Question 3 Multiple Choice (Single Answer)
Which of the following types of movement is shown by tendrils in response to touch?
- Phototropism
- Thigmotropism
- Thermotropism
- Geotropism
Question 4 Multiple Choice (Single Answer)
Which of the following hormones are involved in the delaying of leaf senescence?
- Auxins
- Cytokinins
- Gibberellins
- Abscisic acid
Question 5 Multiple Choice (Single Answer)
Pneumatophores are
- positively geotropic
- plagio-geotropic
- diageotropic
- negatively geotropic
Question 6 Multiple Choice (Single Answer)
Which of the following is a day-neutral plant?
- Tobacco
- Tomato
- Wheat
- Oat
Question 7 Multiple Choice (Single Answer)
What do you call the movement of plant organs in response to water current?
- Rheotactic
- Anemotactic
- Galvanotactic
- Epitactic
Question 8 Multiple Choice (Single Answer)
Why does shoot of a plant bend towards light?
- Due to phototaxis
- Due to increase in auxin in its shaded area
- Due to presence of cells on the illuminated side
- Due to presence of gibberellin
Question 9 Multiple Choice (Single Answer)
Indole acetic acid helps in the formation of
- roots
- stem
- fruit
- lateral bud
Question 10 Multiple Choice (Single Answer)
Which of the following is a long-day plant?
- Rice
- Tomato
- Spinach
- Tobacco