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What are flocs with respect to sewage treatment?
Concept: Microbes in Sewage Treatment
Give names of two organisations which provide most commonly used models of biogas plants.
Concept: Microbes in Energy Generation
A young girl is health conscious. Her dietician advised her to include mushrooms in her diet. What must be the reason?
Concept: Microbes in Human Welfare
Match the column A with B and rewrite correct pairs.
| A | B | |
| i | Atlas 66 | vit A |
| ii | Rice | vit C |
| iii | Spinach | protein |
| iv | bitter gourd | Iron |
Concept: Animal Husbandry (Livestock) > Animal Breeding
Name two bacteria which are responsible for fermenting dough of idli, dosa.
Concept: Microbes in Human Welfare
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
Concept: Microbes as Biocontrol Agents
State any three benefits of Biofertilizers.
Concept: Microbes as Biofertilizers
Match the column A with B and rewrite correct pairs.
| A | B | ||
| 1. | citric acid | a) | in medicine for solubility of Ca++ |
| 2. | fumaric acid | b) | confectionary |
| 3. | gluconic acid | c) | in resins as wetting agents |
Concept: Microbes in Industrial Products
Match the antibiotics in column I with their microbial sources in column II:
| Column I | Column II |
| (a) Chloromycetin | (1) Streptomyces griseus |
| (b) Erythromycin | (2) Streptomyces aurifaciens |
| (c) Streptomycin | (3) Streptomyces venezuelae |
| (d) Terramycin | (4) Streptomyces erythreus |
Concept: Microbes in Industrial Products
Match the following products with their microbial sources:
| Products | Microbial Sources | ||
| (a) | Vitamin B2 | (1) | Rhizopus arrhizus |
| (b) | Fumaric acid | (2) | Candida lipolytica |
| (c) | Vitamin B12 | (3) | Trichoderma konigii |
| (d) | Lipase | (4) | Neurospora gossypii |
| (e) | Cellulase | (5) | Pseudomonas denitrificans |
| (f) | Citric Acid | (6) | Aspergillus niger |
Concept: Microbes in Industrial Products
How the resistance in crops can be developed?
Concept: Plant Breeding
Write two varieties of sugarcane having high sugar content.
Concept: Plant Breeding
Name two better yielding varieties of rice developed in India.
Concept: Plant Breeding
Match the pairs:
| Column A | Column B | ||
| (i) | Compost making biofertilizer |
(a) | Azotobacter |
| (ii) | N2 fixing biofertilizer | (b) | Mycorrhiza |
| (iii) | Fungal biofertilizer | (c) | Agrobacterium |
| (iv) | Phosphate solubilizing biofertilizer |
(d) | Actinobocteria |
Concept: Microbes as Biofertilizers
Match the following pairs:
| Column A | Column B | ||
| Antibiotic produced | Microbial source | ||
| (i) | Penicillin | (a) | Streptomyces venezuelae |
| (ii) | Chloromycetin | (b) | Bacillus licheniformis |
| (iii) | Bacitracin | (c) | Streptomyces aurifaciens |
| (iv) | Erythromycin | (d) | Streptomyces griseus |
| (v) | Streptomycin | (e) | Penicillium chrysogenum |
| (vi) | Terramycin | (f) | Streptomyces erythreus |
Concept: Microbes in Industrial Products
The pH of nutrient medium for plant tissue culture is in the range of ______.
Concept: Methods of Crop Improvement >> Tissue Culture
Mention one example each of fortification with reference to –
- Amino acid content
- Vitamin-C content
Concept: Biofortification
What is lac?
Concept: Animal Husbandry (Livestock)
Give the name of microbial source of antibiotic chloromycetin.
Concept: Microbes in Industrial Products
Explain the steps involved in preliminary treatment of sewage.
Concept: Microbes in Sewage Treatment
