EASY
Earn 100

Give examples of isoenzymes.

Important Questions on Chemical Constituents of Living Cell

MEDIUM
Ethanol is used to treat methanol toxicity because ethanol
EASY
Consider the following statements:
(A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.
(B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
Select the correct option.
HARD
Which one of the following statements is incorrect?
MEDIUM
Solid and dotted lines represent the activities of pepsin and salivary amylase enzymes of the digestive tract, respectively. Which one of the following graphs best represents their activity vs pH?
HARD

Find out where transketolase and epimerase reactions occur among the following:

i) G-3-P+DHAP Fructose -1-6- bisphosphate

ii) Sedoheptulose- 7- Phosphate +G-3-P Xylulose -5-P+ Ribose -5- Phosphate

iii) Ribose -5- Phosphate Ribulose -5- Phosphate

iv) Xylulose -5 -Phosphate  Ribulose-5 - Phosphate

v) Fructose - 6 -Phosphate +G-3-P Xylulose- 5 -Phosphate + Erythrose -4-Phosphate

The correct combination is

EASY
Select the correct option that identifies the nature of apoenzyme and cofactor correctly ?
MEDIUM
Differentiate between apoenzyme and coenzyme.
EASY
Colloidal, thermolabile protein part of enzyme is called
EASY
Which of the followings is/are the class(s) of enzymes?
EASY
Co-factor and prosthetic groups are __________ compounds, ________ bound to apoenzyme.
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

MEDIUM
Holoenzyme is the complete enzyme consisting of an apoenzyme and a co-factor. Select the option that correctly identifies the nature of an apoenzyme and a co-factor.
  Apoenzyme Co-factor
(i) Protein Non-protein
(ii) Non-protein Protein
(iii) Protein Protein
(iv) Non-protein Non-protein
EASY
Identify the correct statement with respect to enzyme.
HARD
What are enzymes? How are they classified? Mention example of each class.
MEDIUM
Write an account of the classification of enzyme.