9th Biology Chapter6 Enzymes
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 1 | Activation energy is required to: | Activate enzyme | Start a reaction | Speed up a reaction | None | 2 | Enzyme that acts on lipid is called: | Protease | Lipase | Amylase | Pepsin | 3 | 4 | Optimum temperature for enzymes in human body is: | 36°C | 37°C | 38°C | 40°C | 5 | Molecule on which enzymes act is called: | Substrate | Co-enzyme | Protein | Substrate-enzyme complex | 6 | Which enzyme converts lipids into fatty acid and glycerol? | Lipase | Amylase | Pepsin | Trypsin | 7 | Starch is broken down by an enzyme called: | Lipase | Pepsin | Amylase | All of these | 8 | Who first used the term enzyme? | Winhelm Kuhne | Daniel Koshland | Emil Fischer | Ibn-e-Nafees | 9 | Lock and key model was proposed in: | 1894 | 1896 | 1898 | 1890 | 10 | Which enzyme breaks the peptide bond? | Amylase | Protease | Lipase | None | 11 | Chemically enzymes are: | Protein | Carbohydrates | Lipids | Fats | 12 | Catalytic region of enzyme is called: | Cofactor | Coenzyme | Prosthetic group | Active site |