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Chapters
2: Force and Pressure
3: Light
4: Heat
5: Electricity
6: Sound
7: Magnetism
8: Universe and Space Science
9: Matter around us
10: Changes around us
11: Air
12: Atomic Structure
13: Water
14: Acids and Bases
15: Chemistry in Everyday Life
▶ 16: Microorganisms
17: Plant Kingdom
18: Organisation of Life
19: Movements in Animals
20: Reaching the Age of Adolescence
21: Crop Production and Management
22: Conservation of Plants and Animals
23: Libre Office Calc
![Samacheer Kalvi solutions for Science [English] Class 8 TN Board chapter 16 - Microorganisms - Shaalaa.com](/images/science-english-class-8-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science [English] Class 8 TN Board chapter 16 - Microorganisms")
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Solutions for Chapter 16: Microorganisms
Below listed, you can find solutions for Chapter 16 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science [English] Class 8 TN Board.
Samacheer Kalvi solutions for Science [English] Class 8 TN Board 16 Microorganisms Exercises [Pages 189 - 190]
Choose the best answer.
Microorganisms are measured in _______.
cm
mm
micron
meter
_______ shows both living and nonliving characteristics.
Protozoa
Virus
Bacteria
Fungi
______ is a prokaryotic microorganisms.
Virus
Algae
Fungi
Bacteria
Based on shape, the bacteria are classified into _______ types.
two
three
four
five
Common cold in human is caused by ______.
plasmodium
influenza
vibrio cholera
aphthovirus
Fill in the blanks.
_______ is prepared from a mould called penicillium.
_______ are the infectious protein particles.
The infecting virus particle found outside the host cell is _______.
Microorganism can be seen with the help of a _______.
Bacteria, which has a flagellum at one end is classified as _______.
State true or false. If false, correct the statement.
Disease-causing microorganisms are called pathogens.
True.
False
Female anopheles mosquito is a carrier of dengue virus.
True
False
Chicken pox is a communicable disease.
True
False
Citrus canker is transmitted by insects.
True
False
Yeast is used in the large-scale production of alcohol.
True
False
Match the following.
| Nitrogen-fixing bacteria | Vaccine |
| Tuberculosis | Prion |
| Kuru | Lactobacillus acidophilus |
| Probiotics | Bacteria |
| Edward Jenner | Rhizobium |
Answer the following questions.
Mark the correct one as:
Assertion: Malaria is caused by Protozoa.
Reason: The disease is transmitted by mosquito.
If both assertion and reason are true and the reason is the correct explanation of assertion.
If both assertion and reason are true and reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Mark the correct one as:
Assertion: Algae are heterotrophic.
Reason: They do not have chlorophyll.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true and reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Answer very briefly.
Write the name of any nitrogen fixing bacteria.
Name the bacteria used in the production of vinegar.
Write the names of any three protozoans.
Who discovered penicillin?
Which diseases can be prevented by vaccination?
Answer briefly.
Write the four types of bacteria, based on their shape.
What are antibiotics?
What are pathogens?
How disease causing microorganisms enter into human beings?
Why microorganisms are essential for agriculture?
Answer in detail.
Write a short note on bacteria and its structure.
How microorganisms are useful in the field of medicine?
Write a short note on common human diseases caused by microorganisms.
How can we improve the beneficial bacterial count in human beings?
Write a short note on probiotics.
Solutions for 16: Microorganisms
Samacheer Kalvi solutions for Science [English] Class 8 TN Board chapter 16 - Microorganisms
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Concepts covered in Science [English] Class 8 TN Board chapter 16 Microorganisms are Microorganisms (Microbes) and Microbiology, Useful micro-organisms, Microorganisms (Microbes) and Microbiology, Viruses, Bacteria, Fungi, Algae, Protozoa, Prions, Virions, Harmful Microorganisms, Relationship Between Man and Microbes Balances, Imbalances and Uses, Bacteria.
Using Samacheer Kalvi Science [English] Class 8 TN Board solutions Microorganisms exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Science [English] Class 8 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
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