Biology Class 9 Chapter 6 Enzymes-5

Biology Class 9 Chapter 6 Enzymes-5

1. The lock and key model was proposed in?

a) 1894
b) 1884
c) 1874
d) 1864

2. Induced fit model was proposed in?

a) 1958
b) 1858
c) 1900
d) 1938

3. The enzyme proteases break down the?

a) Proteins
b) Lipids
c) Carbohydrates
d) All of these

4. Starch is broken down by the enzyme?

a) Amylase
b) Trypsin
c) Chemotrypsin
d) Pepsin

5. Lipids are broken down by?

a) Lipases
b) Proteases
c) Carbohydrases
d) None of these

6. Daniel Koshland was?

a) American
b) Italian
c) Arabian
d) Greek

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