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प्रश्न
What are viruses parasitising bacteria called? Draw a well labelled diagram of the same.
उत्तर
Viruses parasitising bacteria are called bacteriophages.
Bacteriophage
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संबंधित प्रश्न
Mention a product of human welfare obtained with the help of each one of the following microbes :
(a) LAB
(b) Saccharomyces cerevisiae
(c) Propionibacterium shermanii
(d) Aspergillus niger
Choose any three microbes, from the following which are suited for organic farming which is in great demand these days for various reasons. Mention one application of each one chosen.
Mycorrhiza, Monascus, Anabaena, Rhizobium, Methanobacterium, Trichoderma.
Which of the following vitamins is not fat soluble?
(A) Vitamin A
(B) Vitamin B
(C) Vitamin D
(D) Vitamin K
Study the table given below. Do not copy the table, but write the answers in the correct order
| Scientific Name | Commercial Product | Use |
| (a) ____________ | Streptokinase | (b) ____________ |
| Monascus purpureus | (c) ____________ | (d) ____________ |
| (e) ____________ | Lactic acid | (f) ____________ |
How can sewage be used to generate biogas ? Explain.
Write the scientific name of the organism Alexander Fleming worked on and discovered the first antibiotic.
Was the organism he worked on a fungus or a bacterium ?
Answer in ‘one’ sentence :
From which microorganism is vinegar obtained?
Answer in ‘one’ sentence :
What is fermentation?
Expand the following abbreviation DPD.
Match the microbes listed under Column-A with the products mentioned under Column-B.
| Column -A | Column -B | ||
| (H) | Peniciffium notatum | (i) | Statin |
| (I) | Trichoderma polysporum | (ii) | ethanol |
| (J) | Monascus purpures | (iii) | antibiotic |
| (K) | Saccharomyces cerevisia | (iv) | Cyclosporin-A |
Name the microbes that help the production of the following product commercially:
Butyric acid
Milk starts to coagulate when Lactic Acid Bacteria (LAB) is added to warm milk as a starter. Mention any two other benefits of LAB.
Species of ______ is involved in cheese formation.
Match the column A with B and rewrite correct pairs.
| A | B | |
| a. | Penicillium roquefortii | Alcohol |
| b. | Lactobacillus bulgaricus | Cheese |
| c. | Lactobacillus acidophilus | Yoghurt |
| d. | Saccharomyces cerevisiae | Curd |
Complete the analogy with respect to microbial pesticide and their host.
Nosemalocustae : Grasshopper :: Nucleopolyhedrovirus : ____________.
Mention a product for human welfare obtained with the help of the following microbe:
Lactobacillus
Mention a product for human welfare obtained with the help of the following microbe:
Propionibacterium shermanii
Microbes are useful to human beings in diverse ways. Give the biological name of the following microbe:
Microbe known as Baker's yeast.
Microbes are useful to human beings in diverse ways. Give the biological name of the following microbe:
Microbe used in the production of statins.
