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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Which species of Penicillium produces Roquefort cheese?

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प्रश्न

Which species of Penicillium produces Roquefort cheese?

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उत्तर

Roquefort cheese produced by penicillium roqueforti.

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अध्याय 10: Microbes in Human Welfare - VERY SHORT ANSWER [पृष्ठ ७३]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 10 Microbes in Human Welfare
VERY SHORT ANSWER | Q 14. | पृष्ठ ७३

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Give examples to prove that microbes release gases during metabolism.


Name some traditional Indian foods made of wheat, rice and Bengal gram (or their products) which involve use of microbes.


Give the biological name of the following:

A symbiotic nitrogen-fixing bacterium found in root nodules.


Name the microbes that help the production of the following product commercially:
Citric acid


Which of the following microorganism is used for production of citric acid in industries?


Which of the following pair is correctly matched for the product produced by them?


List the advantages of biogas plants in rural areas.


Concentrations of which vitamin increases, while the milk is converted into curd by the process of fermentation:


Lactic acid is formed by the process of:


A small amount of curd added to the milk to initiate the curdling is called


Match the columns.

Product Microbe
A Curd 1 Yeast
B Bread 2 Propionibacterium
C Swiss Cheese 3 LAB
D Statins 4 Monascus purpureus

Which of the following used in Swiss cheese?


Why does ‘Swiss cheese’ have big holes?


Which one of the following factors is responsible for activation of protoxin into active Bt toxin of Bacillus thuringiensis?


Home-made fruit juices are turbid, while the bottled ,fruit juices purchased from the market are clear. Give a reason for this difference.


Read the passage given below carefully and answer the questions that follow:

The bacterium Bacillus thuringiensis serovar israelensis (Bti) is commercially prepared in various formulations such as liquid, water dispersible granules, powders, and pellets. It is used as a larvicide all over the world due to its ability to produce a toxic protein that primarily targets the larvae of mosquitoes.

In Sweden, Bti has been applied on a large scale in the form of commercially available granular formulation Vecto Bac G (Valent BioScience, USA). The applications have taken place in the lower Dalalven River Area to control mass outbreaks of the floodplain mosquito Aedes sticticus.

  1. Why does the toxic protein kill the insects but not the bacterium?
  2. Can the formulation Vecto Bac G be used to eliminate the species of mosquito referred to above? Why?

Which of the following microbes is NOT involved in the preparation of household products?

  1. Aspergillus niger
  2. Lactobacillus
  3. Trichoderma polysporum
  4. Saccharomyces cerevisiae
  5. Propionibacterium sharmanii

Choose the correct answer from the options given below:


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