Biomolecules (Zoology)

Biomolecules (Zoology)

Easy Questions
Moderate Questions

Advanced Zoology

Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Human Health and Disease
Biotechnology Principles and Processes
Biomolecules (Zoology)
Evolution (Zoology)
Biotechnology and its Applications
Reproductive Health
  1. In which one of the following groups, all the three are examples of polysaccharides?








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    Polysaccharides are complex carbohydrates formed by polymerization of a large number of units called monosaccharides, starch is a glucosan polysaccharide and is the major reserve food of animals. Cellulose is the structural polysaccharide of plant cell wall. Sucrose is a disaccharide comprised of one unit of D-glucose and one unit of D-fructose. Maltose is a disaccharide formed of two molecules of glucose held together, lactose is disaccharide formed through condensation of D-glucose and D-glucose. Glucose and fructose are monosaccharides.

    Correct Option: A

    Polysaccharides are complex carbohydrates formed by polymerization of a large number of units called monosaccharides, starch is a glucosan polysaccharide and is the major reserve food of animals. Cellulose is the structural polysaccharide of plant cell wall. Sucrose is a disaccharide comprised of one unit of D-glucose and one unit of D-fructose. Maltose is a disaccharide formed of two molecules of glucose held together, lactose is disaccharide formed through condensation of D-glucose and D-glucose. Glucose and fructose are monosaccharides.

  1. RNA does not possess








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    In RNA, pyrimidine thymine is replaced by uracil.

    Correct Option: B

    In RNA, pyrimidine thymine is replaced by uracil.

  1. Adenine is








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    The nitrogenous bases are constituents of DNA. The nitrogenous bases may be purines or pyrimidines. Purines are 9 membered, double winged structures eg. adenine or guanine.

    Correct Option: A

    The nitrogenous bases are constituents of DNA. The nitrogenous bases may be purines or pyrimidines. Purines are 9 membered, double winged structures eg. adenine or guanine.

  1. Which is distributed more widely in a cell?








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    Bulk of RNA occurs in the cytoplasm and a small amount in the nucleus in eukaryotic cells. In prokaryotic cell RNA is found in the cytoplasm.

    Correct Option: B

    Bulk of RNA occurs in the cytoplasm and a small amount in the nucleus in eukaryotic cells. In prokaryotic cell RNA is found in the cytoplasm.

  1. In RNA, thymine is replaced by








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    RNA is a single chain of ribonucleotides. Each ribonucleotide consists of nitrogenous bases (adenine, guanine, cytosine and uracil), ribose sugar and phosphoric acid.

    Correct Option: D

    RNA is a single chain of ribonucleotides. Each ribonucleotide consists of nitrogenous bases (adenine, guanine, cytosine and uracil), ribose sugar and phosphoric acid.