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Chapters
2: Life Processes in Living Organisms Part - 1
3: Life Processes in Living Organisms Part - 2
4: Environmental Management
5: Towards Green Energy
6: Animal Classification
▶ 7: Introduction to Microbiology
8: Cell Biology and Biotechnology
9: Social Health
10: Disaster Management
![SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC chapter 7 - Introduction to Microbiology - Shaalaa.com](/images/science-and-technology-2-english-10-standard-ssc_6:5f2b1b2038084cf381bfa42c826a928c.jpg "SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC chapter 7 - Introduction to Microbiology")
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Solutions for Chapter 7: Introduction to Microbiology
Below listed, you can find solutions for Chapter 7 of Maharashtra State Board SCERT Maharashtra for Science and Technology 2 [English] 10 Standard SSC.
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Choose the correct option
Choose the correct option.
____________ acid is used in the production of vitamins.
Citric
Gluconic
Lactic
Itaconic
Nowadays, ___________ are used for treatment of diarrhoea and treatment of poultry also.
yoghurt
probiotics
vinegar
cheese
Yoghurt is a milk product produced with the help of ___________.
Lactobacilli
Azotobacter
Corynebacterium
Streptococcus
__________ is a powerful antibiotic against treatment of tuberculosis.
Penicillin
Rifamycin
Streptomycin
Bacitracin
_________ is used in the commercial bakery industry.
Compressed yeast
Algae
Bacteria
Microbes
________ is a substance obtained by microbial processing that functions as an artificial sweetener.
Nycin
Lysine
Xanthenes
Xylitol
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Find an odd one out
Find an odd one out.
Penicillin
Neomycin
Isomerase
Rifamycin
Find an odd one out.
Hydrolases
Lyases
Pepsin
Ligases
Find an odd one out.
Bacteria
Viruses
Fungi
Plants
Find an odd one out.
Khoa
Yoghurt
Butter
Cheese
Find an odd one out.
Lactobacillus
Acidophilus
Lactobacillus casei
Clostridium
Find an odd one out.
Cheese
Curd
Ice-cream
Buttermilk
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Name the following
Name the following.
An enzyme obtained from fungi to produce vegetarian cheese.
Biodegradable plastic used for storing the garbage.
A clean (smokeless) fuel.
Vinegar means 4% ___________.
Microbes used along with artificial nitrogenase in organic farming.
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Relate the following
Relate the following.
Lactobacillus : Yoghurt : : Baker’s yeast : _______________
Saccharomyces cerevisiae : Ethanol : : Aspergillus oryzae : ________________
Lactic acid : To impart acidity : : Beta carotene : _____________________
Gaseous fuel : Coal gas : : ___________ : Coal
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Write true or false
Write whether true or false.
Shelf life of yogurt can be increased by pasteurization.
True
False
Vinegar is used to bring sweetness in food products.
True
False
Methane gas is produced by microbial oxidation of industrial waste.
True
False
Spinosad is a biopesticide.
True
False
Sulphuric acid is a source of energy for some species of bacteria like Acidophillium.
True
False
Microbes have the natural ability of decomposing the man-made chemicals.
True
False
Antibiotics cannot be obtained from a variety of bacteria and fungi.
True
False
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Match the following
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 |
Match the following.
| Column A | Column B |
| 1) Baker’s yeast | a) Probiotics |
| 2) Sauerkraut | b) Bread |
| 3) Ligases | c) Antibiotics |
| 4) Penicillin | d) Microbial enzyme |
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Answer in one sentence
Answer in one sentence.
Which fungus is used to make soya sauce by fermentation?
Why does the process of dirt removal occur in detergents even at low temperature?
What is added to impart thickness to instant soup?
Which chemical substances get mixed with the soil by adding chemical pesticides and insecticides in the agricultural industry?
Which microbes convert uranium to its insoluble salts?
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Give scientific reasons
Give scientific reason.
Probiotics have got more importance in recent times.
Give scientific reason.
Bread and other products made using commercial yeast are nutritious.
Give scientific reason.
Microbial enzymes are eco-friendly.
Give scientific reason.
A biofuel is an important tool in renewable energy sources.
Give scientific reason.
The landfill pit is lined with plastic sheets.
Give scientific reason.
Microorganisms are used to control the effects of sea oil spills.
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Write short notes
Write a short note.
Probiotics
Write a short note.
Microbial Enzymes
Write a short note.
Bio-fuels
Write a short note.
Land filling sites
Write a short note.
Microbial inoculants
Write a short note.
Bioinsecticides
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Answer the following questions
Answer the following questions.
Complete the concept map.
In industries microbial enzymes are used over chemical enzymes.
How is soil pollution controlled by microbes?
Why should we use bioinsecticides?
Explain – Importance of microbes in sewage (water) treatment in cities.
How are microbes useful in land filling for solid waste management?
Which fuels do we get from microbes?
What is the importance of probiotics to humans?
What is the use of antibiotics to human and other animals?
What are the benefits of microbial inoculation in plants?
Explain products made from microbes and their uses.
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC 7 Introduction to Microbiology Solve the following questions
Solve the following questions.
Briefly explain the environmental role of microorganisms in pollution control?
What products do you get from microorganisms through the fermentation process? Explain with an example.
Explain biofuel production with the help of diagram.
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?
Observe the figure and write the answers to the questions asked.
- Name the above figure.
- What is it used for?
- Which gas is formed in it?
- How is this gas formed?
- What is done with sewage?
Complete the paragraph by selecting the appropriate option in parentheses.
(energy, microbial, erosion-proof, reused, purification, environmentally friendly)
Nowadays, instead of chemical catalysts, _______ enzymes are used in the chemical industry. These enzymes are active at low temperature, pH and pressure; due to which _______ is saved and _______ instruments are also not necessary. Enzymes carry out specific processes; hence unnecessary by-products are not formed due to which expenses on _______ are minimised. In case of microbial enzymatic reactions elimination and decomposition of waste material is avoided and enzymes can be _______ Hence, such enzymes are _______.
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?
Write the answers to the questions by observing the figure.
- What type of fuel production process is shown in the figure?
- Write two examples of each of the solid, liquid and gaseous fuels produced in this fuel production process?
- How do microorganisms play their role in this process?
Solutions for 7: Introduction to Microbiology
SCERT Maharashtra solutions for Science and Technology 2 [English] 10 Standard SSC chapter 7 - Introduction to Microbiology
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Concepts covered in Science and Technology 2 [English] 10 Standard SSC chapter 7 Introduction to Microbiology are Microorganisms (Microbes) and Microbiology, Useful micro-organisms, Applied Microbiology, Industrial Microbiology.
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