2.Who was the scientist who examined bacteria, blood cells, yeasts and protozoans

using the microscope that he invented?

A. Anton van Leeuwenhoek

B. Galileo Galilei


C. Robert Hooke

D. Zacharias Jansse

8. How did Robert Hooke discover the cell in his experiment using a single lens

microscope?

A. He observed a specimen from a plant.

B. He observed the honeycomb structure of a cork.

C. He discovered the microorganisms like viruses and bacteria.

D. He conducted an experiment using animal cells like blood cells.


9. Scientists use a highly advanced type of microscope to study the structure of

SARS-CoV-2, the virus that causes COVID-19. Which of the following microscopes can

be used in viewing the image of this virus?

A. Compound light microscope C. Ultramicroscope

B. Simple light microscope D. Transmission electron microscope


10. Allen examines a specimen of onion under the microscope. He observes that the

image of the onion cells is slightly dim. Which of the following parts of the microscope

should he adjust to change the intensity of light?

A. Eyepiece
B. Iris diaphragm
C. Objectives
D. Revolving nosepiece

1. Which parts of the microscope contain lenses that can magnify the image of a cell?

I. Eyepiece III. Objectives

II. Iris diaphragm IV. Revolving nosepiece

A. I and II

B. I and III C. II and III D. III and IV


2. Which of the following statements best describes a compound light microscope?

A. It uses light and has one lens with low magnification

B. It uses both light and beam of electrons to magnify an image.

C. It uses a beam of electrons and has a very high magnification.

D. It uses light and has two or more lenses with high magnification.


3. In the history of the invention of the microscope, how did Anton van

Leeuwenhoek prove that microorganisms exist?

A. He observed the honeycomb structure of the cork.

B. He discovered that disease-causing viruses exist.

C. He examined bacteria, yeasts, and protozoans in his experiments.

D. He invented a microscope that can magnify the image of animal cells.


4. Jim observes the pollens from a plant under a compound light microscope.

Which mechanical part should he adjust if he wants to change the objective from

Low Power Objective (LPO) to High Power Objective (HPO)?

A. Body tube

B. Coarse adjustment knob

C. Fine adjustment knob

D. Revolving nosepiece​