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

Food Biotechnology (BT404)

Multiple Choice Questions (MCQs)

Objective Questions

  1. Which flavors are more expensive?

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

    1. pectinases
    2. lipases
    3. amylases
    4. lecithin
  4. Hydrogen peroxide is broken down by ________.

    1. hrdrogenases
    2. catalyses
    3. glucoronidases
    4. reptidses
  5. 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
  6. ________ is used to prevent browning in certain dried fruits.

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

    1. lecithin
    2. glucose
    3. glycerine
    4. glutin
  8. Deterioration of fruit is done by ________.

    1. actin
    2. pectin
    3. myosin
    4. cellulose
  9. Benzoyl peroxide is a ________.

    1. oxidizing agent
    2. reducing agent
  10. Glucose oxidase is responsible for formation of ________.

    1. sulphuric acid
    2. gluconic acid
    3. glucose
    4. formaldehyde
  11. What is responsible for undesirable taste in butter ________.

    1. butyric acid
    2. acetic acid
    3. hydrolyic acid
    4. phosphatic acid
  12. Glycerine is a ________.

    1. polyol
    2. antioxidant
  13. Prosthetic groups present in enzymes are also called ________.

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

    1. oxidation
    2. reduction
    3. redox
    4. hydrogenation
  15. Wick of a candle burning is a best example for ________.

    1. reduction
    2. redox reactions
    3. oxidation
    4. metabolism
  16. Pectin is a ________ in fruits.

    1. emulsifier
    2. coloring agent
    3. fiber
    4. vitamin
  17. Vinegar is also known as ________.

    1. alcohol
    2. peptic acid
    3. acetic acid
    4. citric acid
  18. Bromothymol blue is a ________.

    1. indicator dye
    2. flurecent
  19. Vitamin D is a precursor produced by ________.

    1. stomach
    2. brain
    3. lungs
    4. liver
  20. 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
  21. 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
  22. Ionization radiation can be considered as ________.

    1. food toxicity
    2. food nutrient
    3. food supplement
    4. food additive
  23. Peptidases are responsible for splitting of ________.

    1. peptides
    2. peptones
    3. amino acids
    4. None of the given
  24. ________ is an example of nutritive vitamin.

    1. vit A
    2. vit D
    3. vit C
    4. vit F
  25. 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
  26. To use a food additive at industrial level, it must be approved by ________.

    1. NCBI
    2. NIH
    3. FDA
    4. None of the given
  27. Catalyses are useful for humans because ________.

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

    1. heat
    2. light
    3. metals
    4. All of the given