Cell Theory & Microscopy

Cell Theory & Microscopy

1. The first cell that was seen through a microscope was a:
a. Cork cell
b. Blood cell
c. Sperm cell
d. Skin cell
e. Bacterial cell

2. One portion of the cell theory states that:
a. All cells have a nucleus
b. All cells divide by mitosis
c. All living organisms are made up of cells
d. Cells arise through spontaneous generation
e. Growth is solely the result of cell division

3. The cell theory was proposed by:
a. Robert Hooke
b. Theodor Schwann
c. Matthias Schleiden
d. Rudolf Virchow
e. Antoni van Leeuwenhoek

4. Which of the following did not contribute to the cell theory?
a. Robert Hooke
b. Antoni van Leeuwenhoek
c. Theodor Schwann
d. Matthais Schleiden
e. Rudolf Virchow

5. Which of the following is probably true about all the experiments that proved spontaneous generation?
a. Air was lacking
b. Too much heat was applied
c. The food source could not support life
d. Microorganisms were already present
e. All of the above

6. The resolution of a microscope can be improved by changing the:
a. Condenser
b. Fine adjustment
c. Wavelength of light
d. Diaphragm
e. Coarse adjustment

7. Van Leeuwenhoek's microscope was a(n):
a. Electron microscope
b. Phase-contrast microscope
c. Simple microscope
d. Confocal microscope
e. None of the above

8. The purpose of the ocular lens is to:
a. Improve resolution
b. Magnify the image from the objective lens
c. Decrease the refractive index
d. Increase the light
e. None of the above

9. Which technique is used to see the proteins in a plasma membrane?
a. Fluoresence microscopy
b. Freeze fracture and transmission electron microscopy
c. Phase-contrast light microscopy
d. Polarization microscopy
e. Scanning electron microscopy

10. Which technique is used to see organelles in a living cell?
a. Fluoresence microscopy
b. Freeze fracture and transmission electron microscopy
c. Phase-contrast light microscopy
d. Polarization microscopy
e. Scanning electron microscopy

11. Which technique is used to locate rabies virus stained with labeled antibodies?
a. Fluoresence microscopy
b. Freeze fracture and transmission electron microscopy
c. Phase-contrast light microscopy
d. Polarization microscopy
e. Scanning electron microscopy

12. You suspect a 100 nm structure is present in a cell. Which of the following would you use to see this structure?
a. Fluoresence microscopy
b. Transmission electron microscopy
c. Phase-contrast light microscopy
d. Polarization microscopy
e. Scanning electron microscopy

13. You want to look at the surface of an insect. Which of the following provides the highest magnification that you can use?
a. Fluoresence microscopy
b. Transmission electron microscopy
c. Phase-contrast light microscopy
d. Polarization microscopy
e. Scanning electron microscopy

14. Which of the following is the minimum needed to see a rough ER (0.25 µm) with a light microscope using an objective lens with a numerical aperture of 1?
a. White light
b. Red light
c. Blue light
d. Electrons
e. All of them would work

15. What is the total magnification of a chloroplast viewed with a 10x ocular lens and a 45x objective lens?
a. 10x
b. 45x
c. 55x
d. 100x
e. 450x