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

Food Biotechnology (BT404)

Multiple Choice Questions (MCQs)

Objective Questions

  1. 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
  2. Deterioration of fruit is done by ________.

    1. actin
    2. pectin
    3. myosin
    4. cellulose
  3. Prosthetic groups present in enzymes are also called ________.

    1. repessors
    2. activators
    3. inducers
    4. coenzymes
  4. Wick of a candle burning is a best example for ________.

    1. reduction
    2. redox reactions
    3. oxidation
    4. metabolism
  5. What is an example of pro oxidants?

    1. heat
    2. light
    3. metals
    4. All of the given
  6. Peptidases are responsible for splitting of ________.

    1. peptides
    2. peptones
    3. amino acids
    4. None of the given
  7. Glycerine is a ________.

    1. polyol
    2. antioxidant
  8. Vinegar is also known as ________.

    1. alcohol
    2. peptic acid
    3. acetic acid
    4. citric acid
  9. 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
  10. Glucose oxidase is responsible for formation of ________.

    1. sulphuric acid
    2. gluconic acid
    3. glucose
    4. formaldehyde
  11. Vitamin D is a precursor produced by ________.

    1. stomach
    2. brain
    3. lungs
    4. liver
  12. Combustion is an example of ________.

    1. oxidation
    2. reduction
    3. redox
    4. hydrogenation
  13. ________ is an example of nutritive vitamin.

    1. vit A
    2. vit D
    3. vit C
    4. vit F
  14. Ionization radiation can be considered as ________.

    1. food toxicity
    2. food nutrient
    3. food supplement
    4. food additive
  15. Clouding in fruit juices is caused by ________.

    1. pectinases
    2. lipases
    3. amylases
    4. lecithin
  16. ________ is used to prevent browning in certain dried fruits.

    1. nitrogen dioxide
    2. sulfur dioxide
    3. carbon dioxide
    4. aluminium
  17. 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
  18. What is responsible for undesirable taste in butter ________.

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

    1. indicator dye
    2. flurecent
  20. Catalyses are useful for humans because ________.

    1. increase oxidative stress
    2. reduce ocidative stress
    3. Both of these
    4. None of the given
  21. To use a food additive at industrial level, it must be approved by ________.

    1. NCBI
    2. NIH
    3. FDA
    4. None of the given
  22. 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
  23. Example of a phospholipid is ________.

    1. lecithin
    2. glucose
    3. glycerine
    4. glutin
  24. Which flavors are more expensive?

    1. natural
    2. artificial
    3. synthetic
    4. None of the given
  25. Pectin is a ________ in fruits.

    1. emulsifier
    2. coloring agent
    3. fiber
    4. vitamin
  26. ________ 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
  27. Hydrogen peroxide is broken down by ________.

    1. hrdrogenases
    2. catalyses
    3. glucoronidases
    4. reptidses
  28. Benzoyl peroxide is a ________.

    1. oxidizing agent
    2. reducing agent