B2.3 Photosynthesis Flashcards
(6 cards)
1
Q
What does chlorophyll do?
A
It absorbs sunlight
2
Q
Which leaf would turn black in a starch test? And why?
a) Leaf in light
b) Leaf in dark
A
The leaf in the light would turn black in a starch test because it has produced more glucose due to more absorption of light and photosynthesis. Glucose is stored as starch
3
Q
What are the limiting factors of photosynthesis? [3]
A
1) Carbon dioxide
2) Light intensity
3) Temperature
4
Q
How can the rate of photosynthesis in a green house be increased?
A
By adding light bulbs or by adding in parratin heaters
5
Q
How do plants produce proteins for growth?
A
They use glucose and nitrates to produce amino acids which is used for the production of proteins
6
Q
What is photosynthesis used for in plants? [6]
A
- Energy
- Proteins for growth and repair
- Making lipids
- Making cell walls
- Making starch
- Used in fruits
