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प्रश्न
Draw a neat and labelled diagram.
Different types of bacteria.
आकृती
उत्तर
 |
Coccus |
 |
Cocco-bacillus |
 |
Bacillus |
 |
Vibrio (Comma shaped) |
|
|
Spirillum |
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संबंधित प्रश्न
Carrier of malaria-causing protozoan is ___________.
Match the organisms in Column A with their action in Column B.
| A | B | ||
| (i) | Bacteria | (a) | Fixing Nitrogen |
| (ii) | Rhizobium | (b) | Setting of curd |
| (iii) | Lactobacillus | (c) | Baking of bread |
| (iv) | Yeast | (d) | Causing Malaria |
| (v) | A protozoan | (e) | Causing Cholera |
| (vi) | A Virus | (f) | Causing AIDS |
| (g) | Producing antibodies |
Can microorganisms be seen with the naked eye? If not, how can they be seen?
Rewrite the following statement using correct of the option and explain the completed statement.
Process of -- -- -- -- of milk proteins occurs due to lactic acid.
Match the pairs
| ‘A’ group | ‘B’ group | ||
| a. | Xylitol | 1. | Pigment |
| b. | Citric acid | 2. | To impart sweetness |
| c. | Lycopene | 3. | Microbial restrictor |
| d. | Nycin | 4. | Protein binding emulsifier |
| 5. | To impart acidity | ||
Write the characteristics of viruses.
Complete the following conceptual picture:
Match the names of scientists given in Column A with the discovery made by them given in Column B.
| Column A | Column B |
| (a) Louis Pasteur | (i) Penicillin |
| (b) Robert Koch | (ii) anthrax bacterium |
| (c) Edward Jenner | (iii) Fermentation |
| (d) Alexander Fleming | (iv) small pox vaccine |
| (v) Typhoid |
The major constituent of vinegar is ______.
‘Cry’ protein is produced by the bacteria ______.
