Tag: microbes in household and industry

Questions Related to microbes in household and industry

Sausages are fermented

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. Vegetables

  2. Meats

  3. Milk

  4. Sauce

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Correct Option: B

Processed cheese is

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. Soft cheese

  2. Blended cheese

  3. Ripe cheese

  4. Hard cheese

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Correct Option: B

Yoghurt is produced with the help of

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. Lactobacillus bulgaricus

  2. Lactobacillus thermophilus

  3. Streptococcus thermophilus

  4. Both A and C

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Correct Option: D
Explanation:

We use microbes or products derived from them everyday. There are various microbes that help us produces so many dairy products. For eg. Yoghurt is produced  commercially with the help of  Lactobacillus bulgaricus and  Streptococcus thermophilus

So, the correct answer is 'Both A and C'

Lactobacillus mediated change of milk to curd occurs due to.

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. Coagulation and partial digestion of milk fats

  2. Coagulation and partial digestion of milk proteins

  3. Coagulation of milk proteins and complete digestion of milk fats

  4. Coagulation of milk fats and complete digestion of proteins

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Correct Option: B
Explanation:

Lactobacillus helps in curd formation by coagulating and partially digesting the milk proteins.

Correct answer-B

Lactic acid bacteria convert milk into curd and improves its nutritional quality by enhancing vitamin

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. A

  2. B

  3. C

  4. D

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Correct Option: B

Identify the bacteria that promotes the formation of curd.

zoology introduction to microbiology commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products food production and microorganisms

  1. Vibrio cholerae

  2. Lactobacillus

  3. Mycobacterium leprae

  4. Clostridium tetani

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Correct Option: B
Explanation:

Lactobacillus acts on the lactose of the milk and converts it into lactic acid. The increased acidity causes the milk proteins (casein) to coagulate and form the curd. So, the correct answer is option B.

Curd is rich in

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. Calcium

  2. Vitamin ${ B } _{ 12 }$

  3. Phosphorus

  4. All of the above

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Correct Option: D
Explanation:
  • Curdling of milk produces curd which occurs due to the presence of Lactobacillus bacteria which convert milk sugar to lactic acid at high temperatures.
  • Curd is rich in minerals like calcium, phasphorus potassium and zinc.
  • They are also rich in protein.
  • They are a good source of vitamins like riboflavin, Vitamin B6, Vitamin B12, pantothenic acid, and Vitamin A. 
  • So, the correct answer is 'Calcium'.

How is the lactic acid fermentation used in milk industry?

zoology introduction to microbiology commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products food production and microorganisms

  1. To convert milk sugar to lactic acid

  2. Lactic acid coagulate the milk protein casein

  3. Lactic acid coagulate the milk fats

  4. All of the these

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Correct Option: A
Explanation:
  • Lactobacillus bacteria cause the fermentation of milk in which milk sugar lactose is converted into lactic acid. This produces yoghurt and curd.
  • Lactobacillus is acidophiles which best grow at a pH of 1 to 5.4.

The flour of Idli and Dosa is made by the use of which microbe?

zoology micro - organisms: a wonderful world commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products

  1. Bacteria

  2. Lactobacillus

  3. Virus

  4. Yeast

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Correct Option: B

Milk is converted into curd by 

zoology introduction to microbiology commercial use of microorganism microbes in household and industry microbial products - food, medicines and industrial products food production and microorganisms

  1. Bacteria

  2. Fungi

  3. Algae

  4. None of these

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Correct Option: A
Explanation:

Milk is converted into curd by the action of Lacto bacillus. It multiplies and promotes the formation of curd in milk.