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प्रश्न
A) Lack of management of which factor is shown in the picture?
B) How can that factor be managed with the help of microbes?
C) How the oil spills in oceans are cleared?
उत्तर
i. The picture shows the lack of management of waste water/sewage.
ii. Microbes which can decompose any compound as well as destroy the pathogens of cholera, typhoid, etc. are mixed with sewage. They release methane and CO2 by decomposition of the carbon compounds present in sewage. Phenol oxidizing bacteria decompose the xenobiotic chemicals present ins ewage.
iii. Hydrocarbonoclastic bacteria like Alcanivorax borkumensis & Pseudomonas are used to clear the oil spillage from ocean water. These bacteria decompose the hydrocarbons and the bring about the reaction of released carbon with oxygen to produce CO2 & water.
संबंधित प्रश्न
The following is an antibiotic.
The bread or idli dough rises because of ______.
The process of conversion of sugar into alcohol is called ___________.
What are antibiotics?
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.
Which plants are cultivated to obtain the fuel?
There is a oil layer on the water surface of river in your area. What will you do ?
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.
________ is a substance obtained by microbial processing that functions as an artificial sweetener.
Microbes used along with artificial nitrogenase in organic farming.
Lactic acid : To impart acidity : : Beta carotene : _____________________
Gaseous fuel : Coal gas : : ___________ : Coal
Antibiotics cannot be obtained from a variety of bacteria and fungi.
Match the following.
| Column A | Column B |
| 1) Aspartame | a) Anaerobic respiration |
| 2) Fermentation | b) Microbial restrictor |
| 3) Niacin | c) Vanillin |
| 4) Essence | d) Sweetener |
In industries microbial enzymes are used over chemical enzymes.
What is the use of antibiotics to human and other animals?
What products do you get from microorganisms through the fermentation process? Explain with an example.
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?
The figure below shows a concept of segregation, observe the following figure and answer the questions that follow:
- What is dry and wet waste?
- Why do we need to segregate our garbage?
