Control systems Flashcards
1
Q
what are the 2 main control systems?
A
Gravitropisms and Phototropism
2
Q
What is Gravitropisms?
A
response to gravity
Positive: plant grows WITH gravity (eg: ROOTS grow down)
Negative: plant grows AGAINST gravity (eg: SHOOTS grow up)
3
Q
What is Phototropism?
A
response to light.
Positive: plants grow TOWARDS the light (eg. SHOOTS)
Negative: plants grow AWAY from the light (eg. ROOTS)
4
Q
What are the two other types of control systems (not the main one)
A
Mechanical and Temperature.
5
Q
What happens to plants in temperature?
A
They open or close due to the temperature
6
Q
Explain Mechanical system ?
A
Plant reacts by being tounched.
7
Q
Give an example of Mechanical system
A
Venus fly trap plant and vines or pea plants that attach to walls or fences.
