Match the terms (3) substrate with the following descriptions:
a. has a tertiary structure that recognizes the substrate
b. is the combination of an enzyme with the substrate
c. has a structure that fits the active site of an enzyme

검증된 단계별 안내

Step 1: Understand the key terms in the problem. A 'substrate' is the molecule upon which an enzyme acts. Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy. The 'active site' is the specific region on the enzyme where the substrate binds.

Step 2: Analyze description (a): 'has a tertiary structure that recognizes the substrate.' This description refers to the enzyme itself, as enzymes have a specific three-dimensional (tertiary) structure that allows them to recognize and bind to their substrate.

Step 3: Analyze description (b): 'is the combination of an enzyme with the substrate.' This description refers to the enzyme-substrate complex, which forms when the substrate binds to the active site of the enzyme.

Step 4: Analyze description (c): 'has a structure that fits the active site of an enzyme.' This description refers to the substrate, as it must have a complementary shape to fit into the enzyme's active site, following the lock-and-key or induced fit model.

Step 5: Match the terms to the descriptions: (a) corresponds to the enzyme, (b) corresponds to the enzyme-substrate complex, and (c) corresponds to the substrate.

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주요 개념

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Enzyme Structure

Enzymes are biological catalysts that speed up chemical reactions in the body. They have a specific three-dimensional shape, known as tertiary structure, which is crucial for their function. This structure allows enzymes to recognize and bind to specific substrates, facilitating the conversion of substrates into products.

Enzyme-Substrate Complex

The enzyme-substrate complex is formed when an enzyme binds to its specific substrate. This interaction is essential for the catalytic activity of the enzyme, as it lowers the activation energy required for the reaction. The formation of this complex is a key step in enzyme kinetics and is fundamental to understanding how enzymes function.

Active Site

The active site of an enzyme is the region where substrate molecules bind. It has a unique shape and chemical environment that allows it to interact specifically with the substrate. The fit between the active site and the substrate is often described by the 'lock and key' model, emphasizing the specificity of enzyme action.

Match the terms (3) substrate with the following descriptions:a. has a tertiary structure that recognizes the substrateb. is the combination of an enzyme with the substratec. has a structure that fits the active site of an enzyme