Home
About
FAQs
System Requirements
In the news
Workshops
Training
Training Calendar
Request for Training
Training Status
Registration
For Teachers
For Students
For Schools
Contact us
Login
Languages
English
हिंदी
മലയാളം
मराठी
ಕನ್ನಡ
you are here->
home
->
Biology
->
Class 10
->
Study of Phototropism and Geotropism in Plants
Study of Phototropism and Geotropism in Plants
Theory
Theory
Procedure
Simulator
Viva Voce
Resources
Feedback
1)
The tendency of roots to move away from the source of light is which type of phototropism.
Negative geotropism
Positive phototropism
Positive geotropism
Negative phototropism
2)
Which hormones promote cell elongation by promoting water intake and increasing cell elasticity
Cytokinin
Gibberellins
Auxin
Abscisic acid
3)
If the stem grows towards sunlight and root grows just opposite to it, the stem movement is called
None of these
Phototropic movement
Positive phototropic movement
Negative phototropic movement
4)
An apparatus commonly used to demonstrate phototropism is [CPMT 1984]
Potometer
Clinostat
Arc Auxanometer
Heliotropic chamber
5)
Negative phototropism occurs in which part of a plant
Stem
Root
Flower
Leaf
6)
Phototropism of stem and root are due to what
Graviperception
Epinasty and hyponasty
Effect of light
Differential hormonal effect
7)
If the stem grows towards sunlight and root grows just opposite to it, the stem movement is known as
None of these
Positive phototropic movement
Negative phototropic movement
Phototropic movement
8)
What are the factors that modify geotropic responses are
Root and shoot apices, temperature, light and atmospheric carbon dioxide
None of these
Root and shoot apices, humidity and temperature
Root and shoot apices, phytochrome, humidity and temperature
9)
Geotropism is the growth of plants in response to
Sunlight
Soil moisture
Gravity
Nutrients
10)
Which statement about plant stems is correct?
They are negatively phototropic but positively geotropic
They are positively phototropic and positively geotropic
They are positively phototropic but negatively geotropic
None of these