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Food Biotechnology — Part 1 MCQs with Explanations

Practice high-yield Biotechnology Engineering MCQs on Food Biotechnology — Part 1 with worked academic solutions for PPSC, FPSC, NIH, NTS.

Questions
40
Difficulty Level
Exam-Level
Target Exams
PPSC, FPSC, NIH...
Estimated Time
48 mins
Exam-Level PPSC FPSC NIH NTS
Verified for Commission Syllabus • Oct 14, 2026
40

Verified Practice Questions

Interactive test mode with detailed academic worked solutions

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Question 1 of 40
★ PPSC ★ FPSC

The most common microorganisms in freshly drawn milk is

Question 2 of 40
★ PPSC ★ FPSC

Food spoilage may be defined as

Question 3 of 40
★ PPSC ★ FPSC

The shelf life of a perishable product is often determined by the number of microbes present

Question 4 of 40
★ PPSC ★ FPSC

Which of the following are the examples of perishable food?

Question 5 of 40
★ PPSC ★ FPSC

The organisms responsible for yoghurt formation is

Question 6 of 40
★ PPSC ★ FPSC

Bacteria cannot survive in a highly salted pickles because

Question 7 of 40
★ PPSC ★ FPSC

Which fermented food is produced from milk?

Question 8 of 40
★ PPSC ★ FPSC

Sodium or calcium propionate is used extensively in the prevention of

Question 9 of 40
★ PPSC ★ FPSC

Who is known as the father of canning?

Question 10 of 40
★ PPSC ★ FPSC

Fungi associated with blue cheese are

Question 11 of 40
★ PPSC ★ FPSC

Meat is regarded as good culture medium for microbes due to

Question 12 of 40
★ PPSC ★ FPSC

What is true about canning?

Question 13 of 40
★ PPSC ★ FPSC

Which mushrooms can be grown on straw?

Question 14 of 40
★ PPSC ★ FPSC

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

Question 15 of 40
★ PPSC ★ FPSC

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

Question 16 of 40
★ PPSC ★ FPSC

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

Question 17 of 40
★ PPSC ★ FPSC

The microbial inhibitors in raw milk include

Question 18 of 40
★ PPSC ★ FPSC

For temporary preservation, fruits and vegetables must be stored at

Question 19 of 40
★ PPSC ★ FPSC

Which one of the following species is used in the preparation of Soy sauce?

Question 20 of 40
★ PPSC ★ FPSC

Which of the following source contributes to microflora of raw milk?

Question 21 of 40
★ PPSC ★ FPSC

The primary bacterial spoilage of poultry meat at low temperature, with characteristic sliminess at outer surface, is caused by

Question 22 of 40
★ PPSC ★ FPSC

In Ultra-High Temperature (UHT) treatment, milk is heated at

Question 23 of 40
★ PPSC ★ FPSC

Food preservation is a most important component of

Question 24 of 40
★ PPSC ★ FPSC

The gas forming culture of Propionibacterium shermanii and P. freudenreichii are essential for giving swiss cheese

Question 25 of 40
★ PPSC ★ FPSC

Which microbe can be transmitted by milk, and can survive in milk heated to 143°C for 30 minutes?

Question 26 of 40
★ PPSC ★ FPSC

Citric acid is used as an acidulate in

Question 27 of 40
★ PPSC ★ FPSC

Most of the vegetables can be stored safely at temperature

Question 28 of 40
★ PPSC ★ FPSC

When lactose is hydrolysed by lactase, which monosaccharides are produced?

Question 29 of 40
★ PPSC ★ FPSC

Water activity a w is lowest in

Question 30 of 40
★ PPSC ★ FPSC

Which of the following is an excellent example of food preservation by using moist heat under pressure?

Question 31 of 40
★ PPSC ★ FPSC

Diabetic ice cream contains which sugar source?

Question 32 of 40
★ PPSC ★ FPSC

The causal organism of ergot poisoning commonly referred to as "ergotism" is

Question 33 of 40
★ PPSC ★ FPSC

Germinating barley seeds are used for preparation of

Question 34 of 40
★ PPSC ★ FPSC

Non-perishable foods include

Question 35 of 40
★ PPSC ★ FPSC

Choose the target organisms for milk pasteurization from the following?

Question 36 of 40
★ PPSC ★ FPSC

To be effective, lactoferrin must have

Question 37 of 40
★ PPSC ★ FPSC

Quality of food is tested by

Question 38 of 40
★ PPSC ★ FPSC

Botulism is caused by

Question 39 of 40
★ PPSC ★ FPSC

Most bacteria are inhibited by a concentration of 7.5% sodium chloride, with exception of some gram-positive cocci such as

Question 40 of 40
★ PPSC ★ FPSC

Miso is culture of

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💡 Examiner's Advisory for Biotechnology Engineering

In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.

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