Using and caring for a light microscope Practice exercise 3

Question 1

Describe the correct procedure for preparing a specimen on a slide for observation under a light microscope. ( 2 marks)

Question 2

Describe the correct procedure for preparing a specimen on a slide for observation under a light microscope. ( 2 marks)

Question 3

Describe the correct procedure for preparing a specimen on a slide for observation under a light microscope. (2 marks)

Question 4

Identify three parts that help in focusing the image and explain how each part contributes to getting a clear image.  (3 marks)

Question 5

Identify three parts that help in focusing the image and explain how each part contributes to getting a clear image.  (3 marks)

Question 6

Identify three parts of the microscope that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 7

Identify three parts of the microscope that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 8

Identify three parts of the microscope below that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 9

Identify three parts of the microscope below that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 10

Identify three parts of the microscope below that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 11

Identify three parts of the microscope below that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 12

Identify three parts of the microscope below that help in focusing an image, and explain how each part contributes to achieving a clear view. (3 marks)

Question 13

State the correct order of steps when focusing a specimen under a light microscope starting with low power. (4 marks)

Question 14

State the correct order of steps when focusing a specimen under a light microscope starting with low power. (4 marks)

Question 15

State the correct order of steps when focusing a specimen under a light microscope starting with low power. (4 marks)

Question 16

Study the microscope in the image provided. What would happen if the objective lenses are touched with fingers, and why should this be avoided? (2 marks)

Question 17

Study the microscope in the image provided. What would happen if the objective lenses are touched with fingers, and why should this be avoided? (2 marks)

Question 18

Study the microscope in the image provided. What would happen if the objective lenses are touched with fingers, and why should this be avoided? (2 marks)

Question 19

What would happen if the objective lenses of a light microscope are touched with fingers, and why should this be avoided? (2 marks)

Question 20

Why should you avoid using the coarse adjustment knob when the high power objective lens is in position? (2 marks)

Question 21

Why should you avoid using the coarse adjustment knob when the high power objective lens is in position? (2 marks)

Question 22

Why should you avoid using the coarse adjustment knob when the high power objective lens is in position? (2 marks)

Question 23

In a school lab, the biology teacher asked students to observe cheek cells. Sheila used the correct stain and followed all steps, but the image remained blurry even after adjusting the fine knob. What could be the possible reasons and how should she troubleshoot the problem? (2 marks)

Question 24

In a school lab, the biology teacher asked students to observe cheek cells. Sheila used the correct stain and followed all steps, but the image remained blurry even after adjusting the fine knob. What could be the possible reasons and how should she troubleshoot the problem? (2 marks)

Question 25

In a school lab, the biology teacher asked students to observe cheek cells. Sheila used the correct stain and followed all steps, but the image remained blurry even after adjusting the fine knob. What could be the possible reasons and how should she troubleshoot the problem? (2 marks)

Question 26

In a school lab, the biology teacher asked students to observe cheek cells. Sheila used the correct stain and followed all steps, but the image remained blurry even after adjusting the fine knob. What could be the possible reasons and how should she troubleshoot the problem? (2 marks)

Question 27

After a field trip, students returned to the lab and found all microscope lenses covered in dust. What steps should they take before using the microscopes, and why is this important? (2 marks)

Question 28

After a field trip, students returned to the lab and found all microscope lenses covered in dust. What steps should they take before using the microscopes, and why is this important? (2 marks)

Question 29

After a field trip, students returned to the lab and found all microscope lenses covered in dust. What steps should they take before using the microscopes, and why is this important? (2 marks)

Question 30

During a lesson, a group of students accidentally used the coarse adjustment knob while the high power objective lens was in place. What damage could this cause, and what should be done differently next time? (2 marks)

Question 31

During a lesson, a group of students accidentally used the coarse adjustment knob while the high power objective lens was in place. What damage could this cause, and what should be done differently next time? (2 marks)

Question 32

During a lesson, a group of students accidentally used the coarse adjustment knob while the high power objective lens was in place. What damage could this cause, and what should be done differently next time? (2 marks)

Question 33

Using the image of a microscope setup, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it.   (2 marks)

Question 34

Using the image of a microscope setup, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it.   (2 marks)

Question 35

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it.   (2 marks)

Question 36

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it.   (2 marks)

Question 37

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it. (2 marks)

Question 38

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it. (2 marks)

Question 39

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it. (2 marks)

Question 40

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it. (2 marks)

Question 41

Using the image of a microscope setup below, identify a common error in handling or setup that could prevent clear observation, and explain how to correct it. (2 marks)

Question 42

After setting up the slide, a student observes the onion cell but sees nothing through the microscope. List two possible errors in microscope setup and how each should be corrected.  (2 marks)

Question 43

After setting up the slide, a student observes the onion cell but sees nothing through the microscope. List two possible errors in microscope setup and how each should be corrected.  (2 marks)

Question 44