Chapter 14- Photosynthesis And Tropisms Flashcards
1
Q
What is photosynthesis?
A
The way in which plants make their food.
2
Q
Name the 4 factors needed for photosynthesis.
A
Light, water, chlorophyll, carbon dioxide.
3
Q
Name the 2 products of respiration.
A
Glucose, oxygen.
4
Q
Why is photosynthesis important? (3)
A
- Produces food for plant, therefore humans and animals.
- Produces oxygen which is breathed in by humans, other organisms.
- Removes carbon dioxide from air.
5
Q
What is a tropism?
A
The growth response of a plant to a stimulus.
6
Q
What is phototropism?
A
The growth response of a plant to light. Shoots grow towards, roots grow away.
7
Q
What is geotropism?
A
The growth response of a plant to the force of gravity. Roots grow towards, shoots grow away.
8
Q
What is chlorophyll?
A
The green pigment found in leaves.
