TEST L. Read and analyze the questions below. Choose the letter of the best answer. Write it on the space provided before each number,

1.It refers to the basic unit of structure and function of all living things
a.cell
b. Microscope
C.Multicellular
d.Unicellular

2.What tool is used to help you see tiny objects and living organisms?
A.Goggles
b.Microscope
c.Stethoscope
d.Telescope

3 He was the first scientist who observed pactena movement is a single drop of pond water
a. Charles Spencer
b. Erst Abbe
c Frits Zernike
d. Robert Hooke

4.lt refers to the science of investigating small objects and structures using microscope
a. Autopay
b. colonoscopy
c. endoscopy
d microscopy

5 In what year did Galileo Galilei perfect the principle of microscope?

a 1590
b 1600
C 1625
d. 1665

6. A student wants to see the parts of a plant cell in detall What part of the microscope will be manipulated?

a. Eyeplece
b. Coarse adjustment knob
c. Fine adjustment knob
d objective lenses

7. How does a mirror help in studying the specimen in a microscope?

a. It cleans the cover slip
c. It gives light to the specimen
b. It cleane the glass slide
d. It gives light directly to the eyes of the user

8. Why is it necessary for the specimen to be observed under the microscope must be thin?

a. So that the image will be clearer
c. So that light could pass through the specimen.
b. So that the image would be larger
d. So that the high magnification objective can be used.
9 Why does a microscope stage have a hole in it?

A. To hold the specimen in place,
b. To make the specimen visible
C.To secure the slide to the stage
d. To allow the light to pass through

10. Why it is necessary for the specimen to be observed under the microscope must be thin?

a So that the image will be clearer
c. so that light could pass through the specimen
b. So that the image would be bigger d. so that a high magnification objective can be used

11. Which should be used to observe bacteria?
a. 60x objective with immersion oil and 10x eyepiece.
b. 97x objective with immersion oil and 5x objective
c. 3x objective and a 10x eyepiece
d. 60x objective and 15x eyepiece

12. A plant cell is viewed using a 5x eyepiece and 43x HPO. How much will the cell be magnified?

A.9x
b. 48x
c. 200x
d. 215x

13. The magnification of a microscope is equal to

A.the magnification power of the objective lens divided by that of the ocular lens.
b. the magnification power of the objective lens divided by the numerical aperture
c. the product of magnification produced individually by the ocular and objective lenses
d. the product of magnification produced individually by the ocular and numerical aperture

14. A plant cell is viewed using a 5x eyepiece and 43X HPO. How much will the cell be magnified?
a 9x
b. 148x
c. 200x
d. 215x

15. If the magnification of the eyepiece is 10x and the magnification of the LPO is 10x, what is the magnification of the specimen?
a 10x
b.100x
c. 1000x
d. 10000x​