•
Put the pond weed in the beaker,
•
Fill the beaker with water.
•
Move the light close to the pond weed,
•
Count bubbles in one minute, / Measure oxygen produced
•
Note down your results,
•
Repeat experiment but move the light closer/further away from the pond weed each time.
•
To make it a fair test, use same amount of water, use same length/volume of pond weed, time it for the same length.
•
Muscular tissue contracts and churns food in the stomach
•
Epithelial tissue covers the stomach
•
Glandular tissue secretes hormones and enzymes
•
Advantages: Catalysts can be reused
•
Disadvantages: Enzymes can denature, Hydrogen Peroxide doesn't kill all the bacteria, It could mix with/stay in the milk which could be harmful to humans.
1.
6.6
2.
13.2
3.
6.6
4.
3.3
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