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Chapters
2: Work and Energy
3: Current Electricity
4: Measurement of Matter
5: Acids, Bases and Salts
6: Classification of Plants
7: Energy Flow in an Ecosystem
▶ 8: Useful and Harmful Microbes
9: Environmental Management
10: Information Communication Technology (ICT)
11: Reflection of Light
12: Study of Sound
13: Carbon: An important element
14: Substances in Common Use
15: Life Processes in Living Organisms
16: Heredity and Variation
17: Introduction to Biotechnology
18: Observing Space: Telescopes
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Solutions for Chapter 8: Useful and Harmful Microbes
Below listed, you can find solutions for Chapter 8 of Maharashtra State Board Balbharati for Science and Technology [English] 9 Standard Maharashtra State Board.
Balbharati solutions for Science and Technology [English] 9 Standard Maharashtra State Board 8 Useful and Harmful Microbes Exercise [Page 95]
Complete the statement using the proper option from those given below. Explain the statement.
Yeast reproduces asexually by the ______ method.
Mycotoxins
Budding
Rhizobium
Complete the statement using the proper option from those given below. Explain the statement.
Toxins of fungal origin are called ______.
Mycotoxins
Budding
Rhizobium
Complete the statement using the proper option from those given below. Explain the statement.
Leguminous plants can produce more proteins due to ______.
Mycotoxins
Budding
Rhizobium
Write the name of microbes found in the following food material.
Yoghurt
Write the name of microbes found in the following food material.
Bread
Write the name of microbes found in the following food material.
Root nodules of leguminous plants
Write the name of microbes found in the following food material.
idli
Write the name of microbes found in the following food material.
Dosa
Write the name of microbes found in the following food material.
Spoiled potato curry
Identify the odd word out and say why it is the odd one.
Pneumonia
Diphtheria
Chickenpox
Cholera
Identify the odd word out and say why it is the odd one.
Lactobacilli
Rhizobia
Yeast
Clostridia
Identify the odd word out and say why it is the odd one.
Root rot
Rust (tambera)
Rubella
Mozaic
Give scientific reasons.
Foam accumulates on the surface of ‘dal’ kept for a long time in summer.
Give scientific reasons.
Why are naphthalene balls kept with clothes to be put away?
Write down the modes of infection and the preventive measures against fungal diseases.
Match the pairs.
| ‘A’ group | ‘B’ group |
| 1. Rhizobium | a. Food poisoning |
| 2. Clostridium | b. Nitrogen fixation |
| 3. Penicillium | c. Bakery products |
| 4. Yeast | d. Production of antibiotics |
Answer the following questions.
Which vaccines are given to infants? Why?
How is a vaccine produced?
How do antibiotics cure disease?
Are the antibiotics given to humans and animals the same? Why?
Why is it necessary to safely store the pathogens of a disease against which vaccines are to be produced?
Answer the following questions in brief.
What are ‘broad-spectrum antibiotics'?
What is fermentation?
Define antibiotic.
Solutions for 8: Useful and Harmful Microbes
Balbharati solutions for Science and Technology [English] 9 Standard Maharashtra State Board chapter 8 - Useful and Harmful Microbes
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Concepts covered in Science and Technology [English] 9 Standard Maharashtra State Board chapter 8 Useful and Harmful Microbes are Microorganisms (Microbes) and Microbiology, Useful Microorganisms, Antibiotics, Other Harmful Microorganisms, Harmful Microorganisms, Lactobacilli, Rhizobium, Yeast, Penicillin, Fungi, Clostridium.
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