WorksheetsCh. 2-2: Quiz Review (Viewing Cells)
Total questions: 10
Worksheet time: 8mins
What do you need to see most cells?
(a)
What determines the total magnification of a microscope?
the powers of the eyepiece
the powers of the light
the powers of the objective lenses
the powers of the magnetic field
Calculate the magnification of a microscope with the following measurements:
the eyepiece has a power of 10x, and the objective ranges from 25x, 35x, and 45x
the highest magnification is 450x
the lowest magnification is 10x
the total magnification is 450x
at the middle objective the magnification is 350x
What determines if a microscope is a simple or compound? How many (a) .
A microscope with two sets of lenses (eyepiece and objective), mounted on a tubelike structure, that passes light through a specimen is called what?
scanning electron microscope
transmission electron microscope
simple light microscope
compound light microscope
Who discovered cells and how?
Matthias Schleiden when using a microscope to study plants, finding they are all made of cells.
Theodor Schwann when observing different animal cells, concluding all animals are made of cells
Robert Hooke when he viewed a piece of cork, using a microscope, seeing little empty boxes
Rudolf Virchow when he viewed cells dividing to form new cells
Select all options that are true of the cell theory.
All organisms are multicellular.
The cell is the basic unit of organization in organisms.
All cells come from cells.
All living things are made up of cells.
Why was the invention of the microscope important in the study of cells?
They made cells visible (made them a scientific fact).
Helped in the understanding that all living things are made of cells.
Led to the creation of the cell theory.
all of these
Which option(s) are true of electron microscopes?
They use a magnetic field in a vacuum to direct beams of electrons.
Some can magnify images up to 1 million times.
They uses lenses.
Their images must be photographed or electronically produced.
Who made the first simple microscope and when?
The late 1500s; Dutch glasses maker
The mid 1600s; Antonie van Leeuwenhoek- a dutch fabric maker
The mid to late 1600s; Robert Hooke
none of these
