Aim: I am going to investigate how different surface areas, and therefore enzyme concentration, of the same volume of potato affects rate of reaction, when placed in 10ml hydrogen peroxide.
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Aim: I am going to investigate how different surface areas, and therefore enzyme concentration, of the same volume of potato affects rate of reaction, when placed in 10ml hydrogen peroxide. Prediction: As the surface area increases, so do the amount of enzymes, which are biological catalysts that are on show, free for the hydrogen peroxide to collide with. Because the catalase and hydrogen peroxide are a complimentary pair, and the enzymes are the ones that break down the substrate, then the more enzymes there are, the more hydrogen peroxide will be reacting at once, and once that...
not used up, or does not differ after the reaction; it can be used again and again after countless reactions. It also does not cause the reaction, but simply speeds the reaction up.

not used up, or does not differ after the reaction; it can be used again and again after countless reactions. It also does not cause the reaction, but simply speeds the reaction up.
I also kept the same potato, for each set of results I took three, as using lots of different ones could have produced unreliable results, as different potatoes' enzymes' reaction times may differ slightly. I did 5 different experiments each on 3 different potatoes 5 experiments on each, to obtain accurate results incase one potatoes enzymes were very different from most.
The American Cancer Society estimates that 18,300 Americans will be diagnosed with malignant brain, spinal cord and other nervous system tumors in 2003. Approximately 13,100 people in the United States will die from brain, spinal cord, and other nervous system tumors in 2003. Brain and spinal cord tumors occur most...
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Planning Before actually planning the experiment, I have done some research to find out about osmosis, and matters related to it, so that I can make predictions. And figure out a way to make this investigation fair and safe. Planning ahead would help me find out how...
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The digestive system is used to break down the food that we eat. It is made up of many different organs like the oesophagus, stomach, intestines etc?óÔé¼?ª Digestion starts when food is taken into the mouth. This is called ingestion. The teeth are used to break the food into...
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Prediction I predict that the higher the concentration of salt, the lower the mass the potato cylinder will become. This is because there is a greater concentration of water molecules inside the potato cylinder, so the water will drain from the cylinder by osmosis, to where there was a...
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Now is the time when your bones are taking in the most calcium. Half of your adult bone mass is formed during your teen years. Get calcium predominately from low-fat milk, yogurt and cheese. Keep exercising to build strong bones. If you skip breakfast, your brain is like a...
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