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enzymes

QuestionAnswer
chemical reaction the process that changes,or transforms,one set of chemicals into another set of chemicals
activation energy the energy that is needed to get a reaction started
how do energy changes affect whether a chemical reaction will happen? chemical reactions that give off energy often happen on their own. chemical reactions that take in energy will not happen without a source of energy.
catalyst a substance that speeds up the rate of chemical reaction.
enzymes a protein catalyst that speeds up the rate of of specific biological reactions
what happens to chemical bonds during chemical reactions? during chemical reactions,some bonds are broken and other bonds are formed.
what role do enzymes play in living things and what affects their function? enzymes speed up chemical reactions that take place in cells.temperature,pH,and other molecules can affect how enzymes work.
true or false.enzymes are essential to the human body. true
enzymes can be affected by? any factors that affect chemical reactions.
enzymes of different organisms tend to have different? optimum temperatures.
what is the optimum temperature in humans 37 degrees celcius.
what is the factors that affect the rate of reaction? pH
carbon dioxide in the blood must combine? with water to form carbonis acids.
if a reaction is so slow that if it were not catalyzed? carbon dioxide might build up in the bloodstream faster than it can be removed.
a change in pH can cause a change in? the shape of a protein
enzymes are globular proteins
enzymes reduce the_________needed for a reaction to proceed and produce products. activation energy
Enzymes have a region called an _______The site is the "lock" into which a substrate "key" fits. active site
The enzyme then fits closely around the substrates. This is called induced fit.
Enzyme activity can be ______ or _____by other substances. inhibited ,promoted
Created by: leavee
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