Advertisements
Advertisements
Question
Observe the figure and write the answers to the questions asked.
- Write the name of the fungus in the figure above.
- What is the source of these fungi?
- Which organic acid obtained from this organism is used in commercial production?
Solution
- The fungus represented in the given figure is Aspergillus niger.
- Sugar molasses, glucose and corn steep liquor is the source of these fungi.
- Organic acids like citric acid and gluconic acid are obtained from this organism and used in commercial production.
APPEARS IN
RELATED QUESTIONS
If a piece of bread is kept in a container in moist place for 2 – 3 days,
1. What will you see?
2. Write scientific name and a character of the organism you may observe.
Answer the following.
How can the oil spills of rivers and oceans be cleaned?
Complete the following conceptual picture related to environmental management.
Garbage is converted into ______ by micro-organisms.
Complete the paragraph using proper words:
(Mechanical, Rhizobium, Aquatic, Toxic, CO2, Nitrogen, Pseudomonas, Amoeba, Bacteria, Hydrocarbons)
Spilling of petroleum oil occurs in ocean due to various reasons. This oil may prove fatal and toxic to _______ organisms. It is not easy to remove the oil layer from surface of water by _______ method. However, bacteria like _______ spp. and Alcanivorax borkumensis have the ability to destroy the pyridines and other chemicals. Hence, these _______ are used to clear the oil spills, These are called as hydrocarbonoclastic bacteria (HCB). HCB decompose the _______ and bring about the reaction of carbon with oxygen. _______ and water is formed in this process.
Nowadays, ___________ are used for treatment of diarrhoea and treatment of poultry also.
Microbes used along with artificial nitrogenase in organic farming.
Why does the process of dirt removal occur in detergents even at low temperature?
Write a short note.
Bioinsecticides
How is soil pollution controlled by microbes?
Explain – Importance of microbes in sewage (water) treatment in cities.
How are microbes useful in land filling for solid waste management?
What is the use of antibiotics to human and other animals?
Diptheria affects the ______.
What is retting?
How are microbes useful in the industry?
Find odd one out:
Complete the chart on production of beverages.
| S. No. | Fruit | Microbe used | Role of microbe used | Name of beverage |
| (a) | Caffea arabica | ______ | Separating seeds from fruit | Coffee |
| (b) | Theobroma cacao | Candida, Hansenula, Pichia, Saccharomyces | ______ | Cocoa |
_______ is used as artificial sweetener.
Complete the following conceptual picture.
