Nitrogenous bases which contain 2 heterocyclic rings are
1.Adenine
2.Thymine
3.Guanine
4.Both 1 and 3
Uridine is
1.Nucleotide
2.Nucleoside
3.Nitrogenous base
4.Amino acid
Cytidylic acid 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
Select the correct arrangement of elements present in human body
1. C>O>H>N
2. C>O>N>H
3. O>C>H>N
4. O>C>N>H
The least abundant element present in human body is
1. Oxygen
2. Carbon
3. Nitrogen
4. Hydrogen
When chemical analysis of living tissue was done using trichloroacetic acid, then inorganic compounds were found to be present in
1. Acid soluble pool
2. Acid insoluble pool
3. Both A and B
4. Cannot be determined
Which of the following is incorrect?
1. Sulphates and phosphates are seen in acid soluble pool
2. Sulphates and phosphates are seen in acid insoluble pool
3. All carbon compounds that we get from living tissue can be called as biomolecules
4. Elemental analysis gives elemental composition of the living tissues.
Which of the following inorganic compound is present in living body?
1. Carbohydrates
2. Proteins
3. Water
4. Lipids