BSc Biotechnology Sem II 2014 2015 2015 Paper Ll Add Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 (A) Fill in the blanks (Any four) are hydrolysable polymers of monosaccharides that contain from two six molecules of simple sugar. (oligosaccharides, disaccharides, polysaccharides,
   • 2. One type of structural isomer in which the isomers have different arrangements of the carbon atoms. (positional, chain, functional group, branched)
   • 3. Virtually all of the important catalysts of the cell isa fibrous protein of skin and bone. (collagen, fibrinogen, keratin, calcium)
   • 5. A short polypeptide chain of amino acid is Called AS
   • 6. Amino acids contain (amino and amide group, amino and hydroxyl group, carboxyl and amide group, amino and carboxyl group)
   • 7. In proteins, the term conformation £0: (secondary structure, primary structure, both primary and secondary structures, none)
   • 8. The central component of the cytochrome C is . amino, oxygen, sulphur) Q L. (B) Do as directed (any two). (04)
   • 1. Define: Structural isomers
   • 2. Define: Amphoteric compounds
   • 3. Give the structure of: D- glucose
   • 4. Give the structure of L-serine
2. Q1 (C) Answer (any two) of the following in brief. (12):
   • 1. What are the properties of monosaccharides?
   • 2. Explain the primary structure of proteins
   • 3. Explain the ionization of amino acid side chains
   • 4. Discuss the structure of wool a- keratin, Q (A) Explain (any four) of the following terms Dominant and recessive trait 4. phenocopy 7. Multiple alleles
   • 3. Phenotype and genotype 6. Penetrance Q (B) Discuss (any two) of the following. (12) 1, Gene interaction producing new phenotype with a suitable example
   • 2. Essential genes and alleles
   • 3. a organism
   • 4. Incomplete dominance with a example Q (A) Do as directed (any four). (03)
   • 1. Explain the term organism’
   • 2. Explain the term “Shelf life of food’ 3, Give examples of any 2 species of genus Pseudomonas
   • 4. Give examples of any 2 species of genus Leuconostoc 5, Give 2 examples of Gram positive organisms
   • 6. State whether the following statement is true or false. If false, Correct and rewrite the statement. ‘Unwanted entry of microorganisms into the food 1s known as asepsis.”
   • 7. Fill in the blanks. is an organism of faecal contamination Fill in the blanks. species produce toxins which are generally referred as
3. Q1 LL. (B) Explain (any two) of the following. 12 marks
   • 1. Scope of food microbiology as 4 science
   • 2. Occurrence of contamination from green plants and fruits in food
   • 3. Role of asepsis in food preservation
   • 4. Methods of drying in order to preserve food products
4. Q1 V. Write a note on (any Three) of the following. 15 marks
   • 2. Bacteria as a primary source of contamination in food
   • 3. Effect of temperature on gene expression 4, Banding patterns of chromosomes
   • 6. polysaccharides

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