Home › Quizzes › Biochemistry and Biotechnology

Biochemistry and Biotechnology

Covers fundamental biochemistry topics including amino acids, proteins, polysaccharides, single cell protein, electrophoresis, coenzymes, immunoglobulins, and antibiotic mechanisms

13 Questions Published
Play Quiz Practise this topic out loud

Questions

Question 1 Multiple Choice (Single Answer)

Which of the following causes food poisoning?

  1. Clostridium perfringens
  2. Streptococcus pyrogenes
  3. Escherichia coli
  4. Yersinia pestis
  5. Mycobcterium bovis
Question 2 Multiple Choice (Single Answer)

Threonine amino acid is biotechnologically produced by

  1. bacillus subtilis
  2. mutants of Ecoli
  3. brevibacterium
  4. corynebacterium glutamicum
  5. pseudomonas
Question 3 Multiple Choice (Single Answer)

Which media cannot be used in electrophoresis?

  1. Cellulose acetate
  2. Paper
  3. Agar gel
  4. Starch grains
  5. Polyacrylamide gel
Question 4 Multiple Choice (Single Answer)

Which of the following statements is false about single cell protein?

  1. Single cell protein refers to the mass culture of certain algae, bacteria, yeasts, moulds etc.
  2. Scp is also produced using carbohydrates as raw materials.
  3. SCP is also produced via paper industry waste.
  4. Spirullina a cyanobacterium offers excellent prospects for low technology SCP production.
  5. Paraffins and sulphide liquor cannot be used as raw materials for the production of SCP.
Question 5 Multiple Choice (Single Answer)

Which protein is not protective in function?

  1. Antibodies
  2. Fibrinogen
  3. Thrombin
  4. Serum albumin
  5. None of the above
Question 6 Multiple Choice (Single Answer)

Which is the most abundant polysaccharide found in skin and cartilaginous tissue?

  1. Heparin
  2. Hyaluronic acid
  3. Chondrotin sulfate
  4. Murein
  5. Capsules
Question 7 Multiple Choice (Single Answer)

Where are B lymphocytes located?

  1. Efferent lymph
  2. Blood and lymphoid tissue
  3. Blood
  4. Lymph nodes
  5. Reticuloendothelial cells
Question 8 Multiple Choice (Single Answer)

Live attenuated organisms as vaccine are used in case of

  1. tuberculosis
  2. tetanus
  3. diphtheria
  4. cholera
  5. polio
Question 9 Multiple Choice (Single Answer)

Which of the following statements is false regarding the limitations of Beer-Lambert law?

  1. Light must be in narrow wavelength range.
  2. The wavelength of light used should be the absorption maximum of the solution.
  3. The law only holds up to a threshold maximum concentration for a given substance.
  4. There must be no ionisation, association or dissociation of the solute with concentration or time.
  5. This law has no limitation.
Question 10 Multiple Choice (Single Answer)

Which of the following coenzymes is not involved in group transfer reactions?

  1. TPP
  2. Coenzyme A
  3. Tetrahydrofolic acid
  4. S-adenosyl methionine
  5. Ferro porphyrins
Question 11 Multiple Choice (Single Answer)

Which immunoglobulin is found abundantly in internal body fluid?

  1. IgA
  2. IgD
  3. IgE
  4. IgM
  5. IgG
Question 12 Multiple Choice (Single Answer)

What is the mode of action of cycloserine antibiotic?

  1. Interference with regeneration of the monophosphate form of bactoprenol from the pyrophosphate form
  2. Inhibition of peptidoglycan synthesis
  3. Damage of membrane
  4. Inhibits peptidoglycan synthesis by interference with synthesis of the peptide moiety of the peptidoglycan
  5. Causing a leakage from the cytoplasmic content of the cell
Question 13 Multiple Choice (Single Answer)

Tetracycline acts by which of the following?

  1. Inhibiting protein synthesis through interference with the binding of aminoacyl t RNA to the 30 S subunit ribosome.
  2. Inhibiting protein synthesis by combining with the 50S subunit ribosome.
  3. Inhibiting protein synthesis by combining irreversibly with the 30 S subunit.
  4. Increases cell permeability.
  5. Causing a leakage from the cytoplasmic content of the cell.
← Back to Quizzes