Question

Which of the following statements is not true about substrates? - Substrates are molecules that bind to the active site of an enzyme and are chemically changed as a result of that binding. - The active site of each enzyme is specific for specific substrates. - The substrate often fits into a pocket or a groove on the enzyme. - Often the name of the substrate shows up in the name of the enzyme; for instance, catechol is the substrate for catechol oxidase. - A cofactor can be considered a substrate because it also binds to an enzyme. Which of the following statements are true about binding sites on enzymes? (Mark all correct responses) - An active site is the location on an enzyme to which a specific substrate binds. - On many enzymes, there are binding sites away from the active site to which molecules can bind and alter the activity of the enzyme. - The rate at which molecules bind to enzymes is influenced by the concentration of that particular molecule. - The shape of the active site (and therefore the rate of binding of the substrate to the active site) can be changed by changing the shape of the enzyme. - Molecules with similar shape will compete for binding sites on the enzyme.

          Which of the following statements is not true about substrates?
- Substrates are molecules that bind to the active site of an enzyme and are chemically changed as a result of that binding.
- The active site of each enzyme is specific for specific substrates.
- The substrate often fits into a pocket or a groove on the enzyme.
- Often the name of the substrate shows up in the name of the enzyme; for instance, catechol is the substrate for catechol oxidase.
- A cofactor can be considered a substrate because it also binds to an enzyme.

Which of the following statements are true about binding sites on enzymes? (Mark all correct responses)
- An active site is the location on an enzyme to which a specific substrate binds.
- On many enzymes, there are binding sites away from the active site to which molecules can bind and alter the activity of the enzyme.
- The rate at which molecules bind to enzymes is influenced by the concentration of that particular molecule.
- The shape of the active site (and therefore the rate of binding of the substrate to the active site) can be changed by changing the shape of the enzyme.
- Molecules with similar shape will compete for binding sites on the enzyme.

Added by Keith C.

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