Cellular Macromolecules
Test on basic information on proteins, monosaccharides and nucleic acids
Questions
What does the secondary structure of proteins mean?
- Linear sequence of amino acids belonging to a peptide chain
- Folding of linear polypeptide chain into specialised coiled structure
- The arrangement and interrelationship of twisted chains into specific loops and bends
- Presence of more than one polypeptide chain
- Integration of a prosthetic group in the polypeptide chain
What is the structure of haemoglobin?
- Primary
- Helical
- Tertiary
- Quaternary
- Amorphous
Which of the following components is not present in nucleoside?
- Purines
- Pyrimidines
- Sugar
- Nitrogen
- Phosphate group
What is dihydroxyacetone?
- A tetrose sugar
- A pentose sugar
- A hexose sugar
- A triose sugar
- None of these
What is an invert sugar?
- An isomer of sucrose
- An equimolar mixture of glucose and fructose
- Fructose
- Racemic mixture
- None of these
Which of the following proteins acts as a carrier of oxygen in humans?
- Lipo-protein
- Phosphoprotein
- Haemoglobin
- Flavoprotein
- Actin
Which of the following biomolecules is referred to as the building blocks of living organisms?
- Protein
- Carbohydrates
- Fats
- Nucleic acids
- None of these
Where are the scleroproteins found?
- Egg yolk
- Hair
- Salmine
- Bone
- None of these
What is the basic unit of r RNA?
- Deoxyribonucleotide
- Ribonucleoside
- Deoxyribonucleoside
- Ribonucleotide
- Amino acids
Which of the following are wheat proteins?
- Actin and myosin
- Histone and nucleoprotein
- Glutelin and gliadin
- Collagen and keratin
- Casein and phosphoproteins
Where is Ramachandran's plot used?
- Determination of the structure of nucleic acids
- Determination of orientation of groups in amino acids
- Determination of the structure of proteins
- Determination of the structure of DNA
- Determination of the structure of carbohydrates
Who amongst the following first reported nucleic acids?
- Altman
- Friedrich Miescher
- J. D. Watson
- Berzelius
- Bloor
Which molecule controls the basic functions of a cell?
- Fats
- Carbohydrates
- Proteins
- Nucleic acids
- Vitamins
Ribose and deoxyribose sugars found in RNA and DNA, respectively, belong to which of the following classes?
- Pentoses
- Hexose
- Heptose
- Triose
- Tetrose
Which of the following statements about RNA is NOT true?
- The total number of purines may not be equal to the total number of pyrimidines.
- It can replicate.
- It is not hereditary material.
- It contains uracil as its base.
- It is single stranded.