Topic 6: Inheritance, Variation and Evolution pt1 Flashcards
1
Q
What are plants sensitive too?
A
light
gravity
temperature
water
physical touch
2
Q
What is a tropism
A
A directed growth response
3
Q
What is positive phototropism
A
towards light
4
Q
What is positive geotropism
A
towards gravity
5
Q
What is positive hydrotropism
A
towards water
6
Q
What is positive thigmotropism
A
towards touch
7
Q
Where is auxin produced
A
At the base of the tip of the plant
8
Q
What happens when light is shone directly above a plant?
A
Because the light is coming from straight above, there is even distribution of auxin on both sides of the shoot, causing equal growth and elongation on both sides, so the plant grows upwards
9
Q
A
