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Question
Shelf life of yogurt can be increased by pasteurization.
Options
True
False
Solution
True
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RELATED QUESTIONS
Which fuels can be obtained by microbial processes? Why is it necessary to increase the use of such fuels?
Why is it necessary to ban the use of plastic bags?
Complete the following conceptual picture with respect to uses.
Salts which can be used as supplement of calcium and iron are obtained from ______ acid.
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.
_________ is used in the commercial bakery industry.
Find an odd one out.
A clean (smokeless) fuel.
Saccharomyces cerevisiae : Ethanol : : Aspergillus oryzae : ________________
Sulphuric acid is a source of energy for some species of bacteria like Acidophillium.
Give scientific reason.
Bread and other products made using commercial yeast are nutritious.
Give scientific reason.
A biofuel is an important tool in renewable energy sources.
Write a short note.
Microbial inoculants
How are microbes useful in land filling for solid waste management?
Explain biofuel production with the help of diagram.
Read the following paragraph and write the answers to the questions asked.
Sulphuric acid is present in the acid rain and materials coming out of mines. You know that erosion of metals present in statues, bridges and buildings occurs due to it. Sulphuric acid is a source of energy for some species of bacteria like Acidiphilium spp. and Acidithiobacillus ferrooxidans. Hence, these bacteria can control the soil pollution occurring due to acid rain. Water soluble salts of uranium are present in the wastes produced during electroplating and in effluent released in the environment from the atomic energy plant. Geobacter convert these salts of uranium into insoluble salts and thereby prevent those salts from mixing with groundwater sources.
- What causes metal erosion in statues, bridges and buildings?
- Sulphuric acid is the source of energy for which bacteria?
- What kind of pollution do these bacteria control?
- What are the water soluble salts in atomic energy plants and in the process of electroplating?
- Which bacteria prevent these salts from mixing with ground water by converting them Into insoluble salts?
Why does yeast help in fermentation?
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?
