Food Biotechnology MCQs

Question 1

Fungi associated with blue cheese are

Accepted Answer

Penicillium roqueforti and Aspergillus

Answer

Penicillium notatum and Penicillium chrysogenum

Answer

Penicillium chrysogenum and Fusarium

Answer

Penicillium expansum and Cladosporium

Question 2

Meat is regarded as good culture medium for microbes due to

Accepted Answer

All the above

Answer

High moisture content

Answer

Favourable pH

Answer

Plentiful nutrients

Question 3

What is true about canning?

Accepted Answer

All the above

Answer

It is a process in which food is sealed in a container such as can or glass jars and then heated

Answer

This process was discovered by Nicholas Appert

Answer

The container is evacuated before sealing

Question 4

Which mushrooms can be grown on straw?

Accepted Answer

All the above

Answer

Coprinus sp.

Answer

Pleurotus ostreatus

Answer

Volvariella volvacea

Question 5

Paralytic shellfish poisoning is a food-borne illness that typically develops after consumption of shellfish contaminated chiefly with the heat stable and acid soluble toxin

Accepted Answer

Saxitoxin

Answer

Okadaic acid

Answer

Mitotoxin

Answer

Aflatoxin

Question 6

Which of the following microbes compete well for free water under conditions of low aw and often w grow well in high sugar foods such as syrup

Accepted Answer

Molds

Answer

Pseudomonas

Answer

Clostridium

Answer

Yeasts

Question 7

Which organism has been used for commercial production of SCP from starch hydrolysates?

Accepted Answer

Fusarium gaminearum

Answer

Candida utilis

Answer

Saccharomyces cerevisiae

Answer

Kluyveromyes fragilis

Question 8

The microbial inhibitors in raw milk include

Accepted Answer

All the above

Answer

Lactoferrin and lactoperoxidase system

Answer

Lysozymes

Answer

Vitamin B12 binding system

Question 9

For temporary preservation, fruits and vegetables must be stored at

Accepted Answer

10 - 20°C

Answer

15 - 20°C

Answer

30 - 35°C

Answer

39 - 45°C