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What are enzymes?
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Enzymes are proteins that act as catalysts to speed up chemical reactions in the body.
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What is the role of a catalyst in a chemical reaction?
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A catalyst speeds up a chemical reaction without being consumed in the process.
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Can you name a common enzyme found in saliva?
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Yes, amylase is a common enzyme in saliva that aids in the digestion of carbohydrates.
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What is the active site of an enzyme?
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The active site is the region on an enzyme where substrate molecules bind and undergo a chemical reaction.
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How do enzymes affect activation energy?
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Enzymes lower the activation energy required for a reaction, making it easier for the reaction to occur.
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True or False: All enzymes are proteins.
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True. Enzymes are made of proteins.
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What is substrate specificity?
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Substrate specificity refers to the ability of an enzyme to recognize and bind to specific substrates.
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What is a substrate?
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A substrate is a molecule upon which an enzyme acts.
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What is the induced fit model?
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The induced fit model suggests that the shape of an enzyme's active site changes slightly to fit the substrate more tightly.
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Name an environmental factor that can affect enzyme activity.
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Temperature is an environmental factor that can affect enzyme activity. Too high or too low temperatures can denature enzymes.
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What is enzyme denaturation?
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Enzyme denaturation is the process where the enzyme loses its structure and, subsequently, its function due to factors like heat or pH changes.
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Why are enzymes considered as reusable?
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Enzymes are reusable because they are not consumed in the reaction and can be used repeatedly for the same type of reaction with new substrate molecules.
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What is the effect of pH on enzyme activity?
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The pH level can affect enzyme activity because enzymes have an optimal pH range where they are most active. Extreme pH levels can denature enzymes.
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What is competitive inhibition?
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Competitive inhibition occurs when a substance similar to the substrate competes for binding at the enzyme's active site, blocking the actual substrate.
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Name one way enzyme activity is regulated in cells.
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Enzyme activity can be regulated through feedback inhibition, where the end product of a pathway inhibits an early step to control the pathway's activity.
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