Q: The enzyme which converts glucose into ethyl alcohol (C2H5OH) is:

Glucose C6H12O6 Zymase ⟶C2 Yeast H+2CO2 .

Question 1

Zymogens are:

Accepted Answer

Zymogens : These are inactive enzyme precursors which in need can be convert in enzymes.

Question 2

The two chemical reactions are showing in the following figure. Which statement is correct for reaction 1?

Accepted Answer

Correct answer is A

Question 3

At the time of cotton seeds germination, the stored food is digested by:

Accepted Answer

Amylase digest the stored food material of germinated cotton seed.

Question 4

Fat is hydrolysed by enzyme lipase to yield:

Accepted Answer

Correct answer is B

Question 5

Substrate of amylase enzyme is:

Accepted Answer

Correct answer is C

Question 6

Enzyme which hydrolyses starch to maltose is:

Accepted Answer

Correct answer is D

Question 7

Which one is not an example for hydrolases?

Accepted Answer

Correct answer is A

Question 8

Which graph shows the relationship between the rate of an enzymatic activity and substrate conc. (S)?

Accepted Answer

Correct answer is A

Question 9

The figure given below shows the conversion of a substrate into product by an enzyme. In which one of the four options (a-d) the components of reaction labelled as A, B, C and D are identified correctly.

Accepted Answer

Activation energy is required for overcoming the energy barrier which gets reduced in the presence of enzyme.

Question 10

Enzyme concerned with transfer of electrons are:

Accepted Answer

Correct answer is B

Question 11

Enzyme having different molecular arrangement but similar functions is:

Accepted Answer

Isoenzymes : A few enzymes are isomerically equal to others and are only differing in their molecular structure.

Question 12

Allosteric modulation is due to the inhibition action of enzyme by:

Accepted Answer

Correct answer is C

Question 13

Which one of the following pairs is wrongly matched?

Accepted Answer

Correct answer is B

Question 14

Modern detergents contain enzyme preparations of:

Accepted Answer

Correct answer is D

Question 15

Signaling between cells usually results in the activation of protein:

Accepted Answer

Correct answer is B

Question 16

With reference to enzymes, turnover number means:

Accepted Answer

Correct answer is C

Question 17

Which graph represents the effect of pH/ temp on the velocity of a typical enzymatic reaction (V)?

Accepted Answer

Correct answer is B

Question 18

The effectiveness of an enzyme is affected least by:

Accepted Answer

Correct answer is C

Question 19

The enzyme which converts glucose into ethyl alcohol (C2​H5​OH) is:

Accepted Answer

Glucose C6​H12​O6​​ Zymase ⟶​C2​ Yeast H​+2CO2​ .

Question 20

Identify the substances having glycosidic bond and peptide bond, respectively in their structure.

Accepted Answer

Inulin is a fructan (polysaccharide of fructose). Adjacent fructose units are linked through glycosidic bond. Insulin is a protein composed of 51 amino acids. Adjacent amino acids are attached through peptide bond.

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