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Questions and Answers
What are enzymes primarily made of?
What are enzymes primarily made of?
- Nucleic Acids
- Proteins (correct)
- Lipids
- Carbohydrates
Enzymes change chemically during the biochemical reactions they facilitate.
Enzymes change chemically during the biochemical reactions they facilitate.
False (B)
What is the region of an enzyme that interacts with substrates called?
What is the region of an enzyme that interacts with substrates called?
active site
Match the enzyme with its substrate or reaction:
Match the enzyme with its substrate or reaction:
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Which statement best explains the interaction between amylose and salivary amylase?
Which statement best explains the interaction between amylose and salivary amylase?
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What process do enzymes like amylase facilitate?
What process do enzymes like amylase facilitate?
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Enzymes can only facilitate synthesis reactions.
Enzymes can only facilitate synthesis reactions.
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Study Notes
Enzymes are Biological Catalysts
- Enzymes are macromolecules that speed up biochemical reactions.
- Most enzymes are proteins, which have a tertiary shape that is essential for their function.
- The active site is a region on an enzyme that interacts with the substrate.
- A substrate is a molecule that interacts with an enzyme.
- Enzymes have active sites that specifically interact with substrates.
- The active site has a unique shape and size and may have chemical charges.
- The physical and chemical properties of the substrate must be compatible with the active site.
- Enzymes can facilitate synthesis or digestion reactions.
Enzyme Naming and Function
- Enzyme names often indicate the substrate or chemical reaction involved.
- Enzyme names often end in "-ase." For example, sucrase is an enzyme that digests sucrose.
- Enzymes are reusable and not chemically changed by the reaction.
- Cells typically maintain a specific enzyme concentration.
Amylase and Amylose Interaction
- Salivary amylase, an enzyme found in human saliva, hydrolyzes amylose (a polar carbohydrate polymer) into glucose.
- Amylase has a polar active site region.
- Amylase and amylose are compatible because they are both polar molecules.
- The chemical interaction between amylose and salivary amylase involves the polar active site of amylase and the polar structure of amylose.
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