In the name of ALLAH, the most beneficient, the most merciful

Food Biotechnology (BT404)

Multiple Choice Questions (MCQs)

Objective Questions

  1. Glycerine is a ________.

    1. polyol
    2. antioxidant
  2. Hydrogen peroxide is broken down by ________.

    1. hrdrogenases
    2. catalyses
    3. glucoronidases
    4. reptidses
  3. Vinegar is also known as ________.

    1. alcohol
    2. peptic acid
    3. acetic acid
    4. citric acid
  4. What is responsible for undesirable taste in butter ________.

    1. butyric acid
    2. acetic acid
    3. hydrolyic acid
    4. phosphatic acid
  5. Bromothymol blue is a ________.

    1. indicator dye
    2. flurecent
  6. Which flavors are more expensive?

    1. natural
    2. artificial
    3. synthetic
    4. None of the given
  7. To use a food additive at industrial level, it must be approved by ________.

    1. NCBI
    2. NIH
    3. FDA
    4. None of the given
  8. ________ is an example of nutritive vitamin.

    1. vit A
    2. vit D
    3. vit C
    4. vit F
  9. Catalyses are useful for humans because ________.

    1. increase oxidative stress
    2. reduce ocidative stress
    3. Both of these
    4. None of the given
  10. What is an example of pro oxidants?

    1. heat
    2. light
    3. metals
    4. All of the given
  11. Pectin is a ________ in fruits.

    1. emulsifier
    2. coloring agent
    3. fiber
    4. vitamin
  12. Wick of a candle burning is a best example for ________.

    1. reduction
    2. redox reactions
    3. oxidation
    4. metabolism
  13. Ionization radiation can be considered as ________.

    1. food toxicity
    2. food nutrient
    3. food supplement
    4. food additive
  14. Deterioration of fruit is done by ________.

    1. actin
    2. pectin
    3. myosin
    4. cellulose
  15. ________ is used to prevent browning in certain dried fruits.

    1. nitrogen dioxide
    2. sulfur dioxide
    3. carbon dioxide
    4. aluminium
  16. Example of a phospholipid is ________.

    1. lecithin
    2. glucose
    3. glycerine
    4. glutin
  17. Peptidases are responsible for splitting of ________.

    1. peptides
    2. peptones
    3. amino acids
    4. None of the given
  18. Combustion is an example of ________.

    1. oxidation
    2. reduction
    3. redox
    4. hydrogenation
  19. Many lactobacilli and bifidobacteria survive in fermented milk products for ________ weeks.

    1. 4 to 16
    2. 4 to 8
    3. 6 to 8
    4. 9 to 10
  20. ________ reduce surface tension of materials to permit absorption of water by the material.

    1. oxidizing agent
    2. wetting agent
    3. polyols
    4. All of the given
  21. Vitamin D is a precursor produced by ________.

    1. stomach
    2. brain
    3. lungs
    4. liver
  22. Enzymes are very important for living beings because ________.

    1. because they provide energy
    2. because they accelerate metabolic reactions in body
    3. because they are inducers of food
    4. because they are found in foods
  23. Glucose oxidase is responsible for formation of ________.

    1. sulphuric acid
    2. gluconic acid
    3. glucose
    4. formaldehyde
  24. What is the full form of FDA?

    1. fuel and drug agency
    2. food and drug administration
    3. food and drug agency
    4. food and detergent agency
  25. FDCA stands for ________.

    1. U.S. Former Food, Drug, and Cosmetic Act
    2. U.S. Federal Food, Drug, and Cosmetic Act
    3. U.S. Federal Fog, Drug, and Cosmetic Act
    4. U.S. Federal Food, Drainage, and Cosmetic Act
  26. Clouding in fruit juices is caused by ________.

    1. pectinases
    2. lipases
    3. amylases
    4. lecithin
  27. Prosthetic groups present in enzymes are also called ________.

    1. repessors
    2. activators
    3. inducers
    4. coenzymes
  28. Benzoyl peroxide is a ________.

    1. oxidizing agent
    2. reducing agent