Why do enzymes sometimes need cofactors? Why are enzymes specific? What enzymes are used in DNA replication? How do enzymes help digestion? How do enzymes differ from hormones?
A catalyst provides the necessary environment for the reaction to occur, thereby quickening it. Certain catalysts work for certain kinds of reactions; in other words, each enzyme has a particular type of reaction that it can activate. Enzymes can be very fussy and sometimes need to be in certain environments or conditions to work well—or at all.
Some enzymes can even be damaged, such as when exposed to too much heat. A damaged enzyme may no longer work to catalyze a chemical reaction. Catalase is an enzyme in the liver that breaks down harmful hydrogen peroxide into oxygen and water. When this reaction occurs, oxygen gas bubbles escape and create foam. Be careful using the sharp knife. An adult may need to help with this. Blend on high speed, pulsing when necessary, until the liver is smooth and no chunks are present. Be careful of the sharp blades in the blender.
To the blended liver drop, add one drop of hydrogen peroxide. You should see a lot of bubbles! What do you think the bubbles are made of? This shows that the liver enzyme catalase is working to start the chemical reaction that breaks down the hydrogen peroxide that would be harmful to the body into less dangerous compounds.
What is the color and consistency of this mixture? Put one drop of the mixture on a clean part of the large plate and add one drop of hydrogen peroxide to it. Compared with the untreated blended liver, did more, less or about the same amount of bubbles form?
Which enzyme works best in neutral conditions? Some enzymes work best at acidic pHs, while others work best in neutral environments. Digestive enzymes secreted in the acidic environment low pH of the stomach help break down proteins into smaller molecules. The main digestive enzyme in the stomach is pepsin, which works best at a pH of about 1.
Does cooking kill enzymes? Cooking Does Destroy Enzymes -- and That's Ok Heat can destroy these plant enzymes, but -- and this is the key -- these enzymes are there for the plant, not for us.
The human body makes its own enzymes to digest the foods we eat. Our digestive process tends to destroy any enzymes already present in our food. What happens when you dilute an enzyme?
Dilution of the enzyme. As long as there is substrate present, the amount of product formed might be expected to increase in a linear fashion as the amount of enzyme increases, as shown in the graph below. This is not always so. Some enzymes form dimers or other aggregates at high concentration. What happens when enzymes are heated to a high temperature? Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction.
However, extreme high temperatures can cause an enzyme to lose its shape denature and stop working. Changing the pH outside of this range will slow enzyme activity. Cellular respiration is the release of energy by metabolic chemical oxidation in the mitochondria, DeStefano The hypothesis was the germinating warm water peas would have the highest rate of oxygen consumption.
Within this experiment, a twenty-one degree celsius bath and a six degree celsius bath were set up. Then, a one hundred mL graduated cylinder was filled with fifty mL of water. If I had a chance to do this experiment once again. I would improve this experiment by actually testing, whether temperature affects the rate of reaction of the alka seltzer tablet, by having the water be hot, warm and cold, and determine at which temperate does the tablet dissolve faster.
I could also change the amount of water I used during the experiment, as I only used ml of water in a ml beaker. I would also change the temperate of the room. A further investigation can study how temperature affects the rate of reaction between water and alka seltzer tablets.
Research Question: How does hydrogen peroxide break down enzymes? When hydrogen peroxide and enzymes meet, they instantly form a reaction. This reaction is the chemical distillation of enzymes. The reaction is enzymes breaking down and turning into bubbles. How does temperature affect enzyme activity? Potatoes have enzymes in them. Enzymes are catalysts, which means they speed up chemical reaction.
This chemical reaction produces oxygen gas. In hot substances, the enzyme reaction speeds up.
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