Photosynthesis Flashcards
1
Q
Word equation for photosynthesis
A
Co2 + water—> Oxygen + Glucose
2
Q
Symbol equation for photosynthesis
A
6Co2 + 6H2O —> 6O2 + C6H12O6
3
Q
What absorbs sunlight
A
Chlorophyll
4
Q
What absorbs water
A
Root hair cells
5
Q
Test for starch
A
- Place leaf in boiling water 20s
- Place leaf into tube of ethanol and place the tube into the boiling water
- Take the leaf out and stain it in iodine
- Starch turns the iodine from orange to blue-black
6
Q
Limiting factors of photosynthesis
A
Co2, light intensity, temperature and water
7
Q
Control variable
A
What you keep the same
8
Q
Dependant variable
A
What you are measuring
9
Q
Independant variable
A
What you change
10
Q
Name the veins in plants
A
Xylem (carries water and minerals from the roots to the plant)
Phloem (Used to transport sugars around the plant)
11
Q
Adaptations of the leaf for photosynthesis
A
- Large surface area to absorb sunlight
- Most chloroplasts found at the top of the leaf, resulting in more energy absorbed
- Stomata in the underside of the leaf allows for oxygen and Co2 to diffuse through the air
- Veins which provide leaf with nutrition
12
Q
DEF of Photosynthesis
A
The process by which plants convert light energy into chemical energy in the form of glucose
