Indicate whether each of the following would be a substrate (S) or an enzyme (E):
a. glucose

What is the name of the class of enzymes that would catalyze each of the following reactions?

c. converting glucose (C₆H₁₂O₆) to fructose (C₆H₁₂O₆).

What is the name of the class of enzymes that would catalyze each of the following reactions?

a. addition of water to a double bond

Ethylene glycol (HO—CH₂—CH₂—OH) is a major component of antifreeze. If ingested, it is first converted to HOOC—CHO (oxoethanoic acid) and then to HOOC—COOH (oxalic acid), which is toxic.

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a. What class of enzyme catalyzes the reactions described?

Adults who are lactose intolerant cannot break down the disaccharide in milk products. To help digest dairy food, a product known as Lactaid can be added to milk and the milk then refrigerated for 24 hours.

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a. What enzyme is present in Lactaid, and what is the major class of this enzyme?

Give the substrate of each of the following enzymes:

a. urease

Give the substrate of each of the following enzymes:

a. maltase

Does each of the following statements describe a simple enzyme (no cofactor or coenzyme necessary), an enzyme that requires a cofactor, or an enzyme that requires a coenzyme?

b. consists of one polypeptide chain in its active form

Does each of the following statements describe a simple enzyme (no cofactor or coenzyme necessary), an enzyme that requires a cofactor, or an enzyme that requires a coenzyme?

c. contains vitamin B₆ in its active site