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Bacteria cannot be seen with the naked eyes, but these can be
Biology
Biology

Class 12

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: Reproduction in Organisms

18 questions

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2

Chapter 2: Sexual Reproduction in Flowering Plants

18 questions

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3

Chapter 3: Human Reproduction

21 questions

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4

Chapter 4: Reproductive Health

12 questions

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5

Chapter 5: Principles of Inheritance and Variation

16 questions

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6

Chapter 6: Molecular Basis of Inheritance

14 questions

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7

Chapter 7: Evolution

10 questions

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8

Chapter 8: Human Health and Disease

17 questions

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9

Chapter 9: Strategies for Enhancement in Food Production

12 questions

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10

Chapter 10: Microbes in Human Welfare

15 questions

Q1
Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?
Q2
Give example to prove that microbes release gases during metabolism.
View all question
11

Chapter 11: Biotechnology: Principles and Processes

12 questions

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12

Chapter 12: Biotechnology and its Applications

10 questions

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13

Chapter 13: Organisms and Populations

17 questions

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14

Chapter 14: Ecosystem

13 questions

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15

Chapter 15: Biodiversity and Conservation

10 questions

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16

Chapter 16: Environmental Issues

11 questions

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Question
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Solving time: 10 mins

Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?

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Biology (NCERT)

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Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?
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As a sample tap water or curd  can be used for the study of microbes. Tap water contains many kinds of bacteria (close to 80,000 bacteria in 1 ml of water) which can be observed under the microscope by simple staining procedures. Alternately, curd which is  made by the action of Lactobacillus bacteria on milk can also be easily observed under a microscope.
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Question Text
Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?
TopicMicrobes in Human Welfare
SubjectBiology
ClassClass 12
Answer TypeText solution:1
Upvotes17