9th Biology Chapter6 Enzymes
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 1 | Lock and key model was proposed in: | 1894 | 1896 | 1898 | 1890 | 2 | Activation energy is required to: | Activate enzyme | Start a reaction | Speed up a reaction | None | 3 | Term “metabolism” derived from the Greek words means: | Split | Change | Division | Break | 4 | Which enzyme converts lipids into fatty acid and glycerol? | Lipase | Amylase | Pepsin | Trypsin | 5 | The concept of mechanism was first of all given by: | Ibn e Nafees | Winhelm Kuhne | Emil Fischer | Daniel Koshland | 6 | Optimum temperature for enzymes in human body is: | 36°C | 37°C | 38°C | 40°C | 7 | Which enzyme breaks the peptide bond? | Amylase | Protease | Lipase | None | 8 | Enzyme that acts on lipid is called: | Protease | Lipase | Amylase | Pepsin | 9 | Which enzymes are used in dish washing to remove resistant starch residues? | Protease | Amylase | Lipase | All of these | 10 | Molecule on which enzymes act is called: | Substrate | Co-enzyme | Protein | Substrate-enzyme complex | 11 | Which one is an organic cofactor? | Flavin | Heme | Both 1 & 2 | None | 12 | Catalytic region of enzyme is called: | Cofactor | Coenzyme | Prosthetic group | Active site |