Mark the Incorrect statement 

1. Co-enzymes are also organic compounds but their association with apoenzyme is only transient

2. ${V_{max}}_{}$ (maximum velocity) represent that there are no substrate molecules to bind with free enzyme molecule

3. Living state is non-equilibrium steady state to be able to perform work 

4. Enzymes eventually bring down the energy barrier making the transition of substrate to product more easy 

Lecithin is formed by 

1. Fatty acid (2) + Phosphoric acid (1) + Ethanolamine 

2. Fatty acid (2) + Phosphoric acid (1) + Serine

3. Fatty acid (3) + Glycerol

4. Glycerol (1) + Fatty acid (2) + Phosphoric acid (1) + Choline 

Which of the following monosaccharide is pentose sugar?

1. Mannose 

2. Ribose

3. Galactose

4. Glucose

Which of the following is not a nucleoside?

1. Uridine

2. Cytidylic acid CMP

3. Thymidine

4. Guanosine

The structure given below is of

1. A purine base

2. Adenosine

3. Adenylic acid

4. A pyrimidine base

Compounds which consists of only one type of monosaccharide monomer are called homopolysaccharides. Which one of the following does not belong this category?

1. Starch 

2. Pectin

3. Cellulose

4. Glycogen

Exoskeleton of anthropods possesses chitin which is

1. A complex polysaccharide 

2. A polymer of N-acetylglucosamine

3. Known for forming complex helices in its secondary structure

4. Both (1) & (2)

Most enzymes consist of two parts i.e. 

1. Holoenzyme and prosthetic group

2. Enzyme and coenzyme

3. Apoenzyme and enzyme

4. Apoenzyme and cofactor

Which one is the most abundant protein in the animal world?

1. Collagen

2. RUBISCO

3.Trypsin

4. Insulin

Which of the following does not affect the activity of simple enzyme?

1. Temperature

2. Presence of coenzymes

3. pH

4. Substarate concentration