9th Biology Chapter6 Enzymes
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 1 | Chemically enzymes are: | Protein | Carbohydrates | Lipids | Fats | 2 | Who proposed induced-fit model? | Winhelm Kuhne | Daniel Koshland | Emil Fischer | Ibn-e-Nafees | 3 | Number of discovered enzymes are: | 200 | 2000 | 3000 | 3500 | 4 | 5 | The concept of mechanism was first of all given by: | Ibn e Nafees | Winhelm Kuhne | Emil Fischer | Daniel Koshland | 6 | In which year the induced-fit model was proposed? | 1952 | 1954 | 1956 | 1958 | 7 | Molecule on which enzymes act is called: | Substrate | Co-enzyme | Protein | Substrate-enzyme complex | 8 | Starch is broken down by an enzyme called: | Lipase | Pepsin | Amylase | All of these | 9 | Catalytic region of enzyme is called: | Cofactor | Coenzyme | Prosthetic group | Active site | 10 | Which enzyme converts lipids into fatty acid and glycerol? | Lipase | Amylase | Pepsin | Trypsin | 11 | Which enzymes are used in dish washing to remove resistant starch residues? | Protease | Amylase | Lipase | All of these | 12 | Who proposed lock and key model? | Winhelm Kuhne | Daniel Koshland | Emil Fischer | Ibn-e-Nafees |