Increases and decreases of the heart rate result from changes in the activity of the _______. A. medulla oblongata B. thalamus C
1 answer:
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Explanation:
- Enzymes are biological catalysts that speed up biochemical reactions.
- A substrate is the molecule that the enzyme acts upon and converts to product.
- An active site is the part of the enzyme where the substrate binds to it. Active sites contain a specific amino acid sequence and conformation which make it easy for the substrate to bind.
- Enzymes are stringently substrate specific i.e. only a certain substrate can fit in and bind to the active site of a specific enzyme, just like only one key can fit into a specific lock.
