Question

matching 30 points match the name to the letter in the diagram: a b c active site enzyme substrate

Explanation:

To solve this enzyme - substrate interaction matching problem, we rely on the knowledge of enzyme - substrate complex formation:

1. The enzyme is a biological catalyst with a specific three - dimensional structure. The purple shape (A) remains unchanged before and after the reaction, so it represents the enzyme.
2. The active site is the region on the enzyme where the substrate binds. The indentation on the purple enzyme (A) is the active site, as it is the area where the substrate will fit.
3. The substrate is the molecule that binds to the enzyme's active site. The green shape (C) is the molecule that is going to bind to the enzyme's active site (the indentation on A), so it is the substrate. The arrow (B) indicates the direction of the substrate approaching the enzyme. The yellow square (D) and the blue triangle (D) might be products or other related molecules, but for this matching, we focus on A, B, and C.

Answer:

• A: Enzyme
• B: (The arrow represents the substrate approaching the enzyme, but in terms of the given options, the main entities to match are A, B, C with Enzyme, Active Site, Substrate. So for B, it's the process of substrate binding, but the options are Enzyme, Active Site, Substrate. Wait, maybe a better way:
• A: Enzyme (because it's the catalyst, unchanged)
• B: (The arrow shows the substrate moving towards the enzyme, but the options are Enzyme, Active Site, Substrate. Wait, the active site is part of the enzyme. Let's re - evaluate:

The enzyme is the protein (or RNA) with the active site. The active site is the part of the enzyme (A) where the substrate binds. So:

• A: Enzyme (the whole purple structure)
• The active site is the indentation on A, but the options are Enzyme, Active Site, Substrate. Wait, maybe the labels:
• A: Enzyme (since it's the catalyst, the purple shape)
• B: (the arrow is the process, but the options are Enzyme, Active Site, Substrate. Wait, the substrate is C (green), active site is part of A, but the options are Enzyme, Active Site, Substrate. So:
• A: Enzyme
• B: (maybe the active site? No, active site is part of A. Wait, perhaps the correct matching is:
• A: Enzyme (the purple structure, catalyst)
• B: Active Site (the indentation on the enzyme where substrate binds)
• C: Substrate (the green molecule that binds to the active site)

So the final matching:

• A: Enzyme
• B: Active Site
• C: Substrate