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

Food Biotechnology (BT404)

Multiple Choice Questions (MCQs)

Objective Questions

  1. Pectin is a ________ in fruits.

    1. emulsifier
    2. coloring agent
    3. fiber
    4. vitamin
  2. Benzoyl peroxide is a ________.

    1. oxidizing agent
    2. reducing agent
  3. Prosthetic groups present in enzymes are also called ________.

    1. repessors
    2. activators
    3. inducers
    4. coenzymes
  4. Combustion is an example of ________.

    1. oxidation
    2. reduction
    3. redox
    4. hydrogenation
  5. ________ 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
  6. What is responsible for undesirable taste in butter ________.

    1. butyric acid
    2. acetic acid
    3. hydrolyic acid
    4. phosphatic acid
  7. Example of a phospholipid is ________.

    1. lecithin
    2. glucose
    3. glycerine
    4. glutin
  8. 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
  9. ________ is used to prevent browning in certain dried fruits.

    1. nitrogen dioxide
    2. sulfur dioxide
    3. carbon dioxide
    4. aluminium
  10. Wick of a candle burning is a best example for ________.

    1. reduction
    2. redox reactions
    3. oxidation
    4. metabolism
  11. Catalyses are useful for humans because ________.

    1. increase oxidative stress
    2. reduce ocidative stress
    3. Both of these
    4. None of the given
  12. Ionization radiation can be considered as ________.

    1. food toxicity
    2. food nutrient
    3. food supplement
    4. food additive
  13. Glycerine is a ________.

    1. polyol
    2. antioxidant
  14. 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
  15. ________ is an example of nutritive vitamin.

    1. vit A
    2. vit D
    3. vit C
    4. vit F
  16. Vitamin D is a precursor produced by ________.

    1. stomach
    2. brain
    3. lungs
    4. liver
  17. 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
  18. Which flavors are more expensive?

    1. natural
    2. artificial
    3. synthetic
    4. None of the given
  19. Clouding in fruit juices is caused by ________.

    1. pectinases
    2. lipases
    3. amylases
    4. lecithin
  20. Glucose oxidase is responsible for formation of ________.

    1. sulphuric acid
    2. gluconic acid
    3. glucose
    4. formaldehyde
  21. Peptidases are responsible for splitting of ________.

    1. peptides
    2. peptones
    3. amino acids
    4. None of the given
  22. Bromothymol blue is a ________.

    1. indicator dye
    2. flurecent
  23. Vinegar is also known as ________.

    1. alcohol
    2. peptic acid
    3. acetic acid
    4. citric acid
  24. What is an example of pro oxidants?

    1. heat
    2. light
    3. metals
    4. All of the given
  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. Hydrogen peroxide is broken down by ________.

    1. hrdrogenases
    2. catalyses
    3. glucoronidases
    4. reptidses
  27. To use a food additive at industrial level, it must be approved by ________.

    1. NCBI
    2. NIH
    3. FDA
    4. None of the given
  28. Deterioration of fruit is done by ________.

    1. actin
    2. pectin
    3. myosin
    4. cellulose