Midbits

Coenzyme is : a. Always a protein c. Always an inorganic compound b. Often a metal d. Often a vitamin ANS: D PTS: 1 2. Enzymes are named after their substrates by adding suffix : a. -in b. -ase c. -ose d. –sin ANS: B PTS: 1 3. Enzyme exist in the cells as- a. Solid c. Colloid b. Crystals d. None of the above ANS: C PTS: 1 4. An enzyme brings about : a. Reduction in activation energy c. Increase in activation energy b. Increase in reaction time d. All the above ANS: A PTS: 1 5. Which of the following statement is “NOT’ correct a. All enzymes are thermolabile c. All enzymes are proteins b. All enzymes are biocatalysts d. All proteins are enzymes ANS: D PTS: 1 6. A __________is a biocatalyst that increases the rate of the reaction without bei ng changed. a. Aluminum oxide c. Enzyme b. Silicon dioxide d. Hydrogen peroxide ANS: C PTS: 1 7. What is the nature of an enzyme? a. Vitamin b. Lipid c. Carbohydrate d. Protein ANS: D PTS: 1 8. Name the coenzyme of riboflavin (B2)? a. NAD or N...