Which of the following is true about Lecithin?

1.It is made of 2 fatty acids + glycerol+ Phosphoric acid+ Choline

2.It is made of 2 fatty acids + glycerol + Choline

3.It is made of 3 fatty acids + glycerol+ Phosphoric acid+ Choline

4.It is made of 2 fatty acids + glycerol+ Phosphoric acid+ Serine

Which of the following is incorrect about Cholesterol?

1.It stabilizes plasma membrane of animal cell

2.It is produced in Liver mainly

3.It is a type of steroid

4.It has ketone group

Which one of the following is False?

1.Fatty acids and glycerol are soluble in water

2.phospholipids are found in the cell membrane

3.Oils have lower melting point.

4.In lipids fatty acids are found esterified with glycerol

Which of the following is a nucleoside?

1.Adenylic acid

2.Adenosine

3.Adenoside

4.Both 1 and 3

Which of the following is a nucleotide?

1.Adenylic acid

2.Adenosine

3.Adenoside

4.Both 1 and 3

Nucleic acids  consist of        

1.Nucleotide only

2.Nucleoside only

3.Sugar + Phosphate only

4.Nitrogenous bases only

Nitrogenous bases are

1.Heterocyclic rings

2.Homocyclic rings

3.Organic compounds

4.Both 1 and 3

Uridine is

1.Nucleotide

2.Nucleoside

3.Nitrogenous base

4.Amino acid

Which one is correct

1.Adenine = Pyrimidine, Uracil= Purine

2.Adenine= Purine, Uracil= Purine

3.Adenine= Adenylic acid, Uracil=Uridylic acid

4.Adenine= Purine, Uracil= Pyrimidine

Which of the following is true?

1.All the elements present in a sample of earth’s crust are also present in a sample of living tissue

2.Carbon and Hydrogen are  present in more amount in any living organism than earth’s crust.

3.Carbon and Hydrogen are present in more in living organisms than in non living matter.

4.All of the above