Biology Quiz 1 - The Cell and the Microscope
Single body tube =
monocular
One difference between human cheek cells and onion cells is:
the absence of a cell wall in human cells
_______________________________________, sixteenth century eyeglass maker(s), experimented with glass lenses and a tube and found that objects could be magnified greatly.
Hans and Zaccharias Janssen
Life cannot be completely defined by the physical sciences. True or False?
True
Two eyepieces =
binocular
Second =
body tube
Each cell possesses a life of its own =
cell theory
Outer covering around plant cell made of fibrous material =
cell wall
The fibrous outer covering surrounding plant cells is the:
cell wall
Robert Hooke was the first to use the term _________ to describe tiny compartments in the cork.
cells
Fifth =
coverslip
All cellular material outside the nucleus =
cytoplasm
The cellular material outside the nucleus is called the ________________
cytoplasm
Magnifies using streams of electrons =
electron microscope
An outer covering of cells =
epidermis
The Bible states that man was created in the ___________ of God, and therefore is far more than just the collection of cells that make up his body.
image
Small structure(s) within nucleus =
nucleolus
Controls what comes into and goes out of the cell =
plasma membrane
Ability to tell two points apart =
resolving power
Third =
revolving nosepiece
Explain three disadvantages to using an electron microscope to view microorganisms.
1. Very expensive 2. Extensive and time consuming specimen preparation 3. You can not view a living organism.
Large storage structures =
vacuole
Functional plant or animal =
organism
Schleiden and Schwann believed that: 1. organisms were the basic unit of life 2. both cells and organisms were basic units of life 3. the questions of the basic unit of life were too abstract to answer 4. none of the above
4, none of the above
______________________________________ was/were the first to carefully document observations of blood cells, sperm cells, and other microorganisms.
Anton van Leeuwenhoek
The electron microscope was invented in Germany during the 1930's by _________________________________.
Max Knott and Ernst Ruska
The Cell theory states that the cell is the basic unit of life, while the Organismal Theory states that the organism is the basic unit of life. True or False?
True
Magnifying lens closest to the specimen =
objective lens
Galileo used ___________________ to examine the principles of lenses, thus improving on previous attempts at magnification.
mathematics
Control center of the cell =
nucleus
The spherical object within a cell which controls its activity is called the ____________
nucleus
Fourth =
objective lens
First =
ocular lens
Lens found in the eyepiece =
ocular lens
Magnifies an object using light and lenses =
optical microscope
A functioning organism represents life =
organismal theory
The Bible teaches that:
our bodies were created, then had life breathed into them
Very little has changed in the structure of light microscopes since the 1840's, when an American, __________________________, was able to significantly improve the quality of the magnified images with his microscopes.
Charles Spencer