Enzymes Biology Test 03

Total Questions: 22

1 - Which of the following are not vitamins?

A ) Riboflavin
B ) Thiamine
C ) Folic acid
D ) Flavin and heme ✅

2 - Enzymes are used in the production of;

A ) White bread
B ) Alcohol
C ) Buildings
D ) Alcohol and white bread ✅

3 - Enzymes are extensively used in different industries for;

A ) Fast chemical reactions ✅
B ) Slow chemical reactions
C ) Medium chemical reactions
D ) Very show chemical reactions

4 - In paper making starch is broken by enzyme to lower its:

A ) Density
B ) Viscosity ✅
C ) Mass
D ) Weight

5 - Enzymes are used in;

A ) Fermentation
B ) Production of alcohol
C ) Fermentation and production of alcohol ✅
D ) Steel production

6 - Some vitamins acts as;

A ) Enzymes
B ) Inhibitors
C ) Coenzymes ✅
D ) Prosthetic group

7 - Enzymes are very ___ to the environment in which they work.

A ) Sensitive ✅
B ) Not sensitive
C ) Sensitive and insensitive
D ) Crucial

8 - Ionization of amino acids at the active site is affected by;

A ) Change in temperature
B ) Change in substrate concentration
C ) Change in pH ✅
D ) Change in temperature and substrate concentration

9 - "The body and its parts are always undergoing change" it is stated by:

A ) Winhelm
B ) Daniel Koshland
C ) Emil Fischer
D ) Ibn-e-Nafees ✅

10 - Which is derived from a Greek word meaning change:

A ) Anabolism
B ) Catabolism
C ) Metabolism ✅
D ) Enzymes

12 - The biochemical reactions in which larger molecules are synthesized are called:

A ) Anabolism ✅
B ) Metabolism
C ) Catabolism
D ) Digestive reactions

13 - The biochemical reactions in which larger molecules are broken down are called;

A ) Metabolism
B ) Catabolism ✅
C ) Anabolism
D ) Mutualism

14 - Energy yielding process is;

A ) Anabolism
B ) Catabolism ✅
C ) Metabolism
D ) None

15 - Energy is consumed in:

A ) Metabolism
B ) Anabolism ✅
C ) Both (a) and (b)
D ) Catabolism

16 - Enzymes act as;

A ) Catalysts
B ) Biocatalysts ✅
C ) Barrier to the beginning of reaction
D ) Barrier to fast reaction

17 - In the presence of enzymes, reaction proceed at a:

A ) Slower rate
B ) Faster rate ✅
C ) Medium rate
D ) Very slow rate

18 - Which of the following are not changed during the biochemical reactions?

A ) Substrates
B ) Products
C ) Enzymes ✅
D ) ES complex

19 - Enzymes convert the substrates into different molecules called;

A ) Reactants
B ) Products ✅
C ) Inhibitors
D ) Biomolecules

20 - Trypsin enzyme works in;

A ) Stomach
B ) Large Intestine
C ) Small Intestine ✅
D ) Heart

21 - Starch is broken down by an enzyme called;

A ) Lipase
B ) Pepsin
C ) Amylase ✅
D ) None of these

22 - The term metabolism is derived form which language;

A ) Latin
B ) Greek ✅
C ) German
D ) Arabic