Bio U:3 Q:1
Epidermis
An outer covering of cells
Vacuole
Large storage structures
Galileo used what subject to examine the principles of lenses, thus improving on previous attempts at magnification?
Mathematics
Cytoplasm
All cellular material outside the nucleus
Very little has changed in the structure of light microscopes since the 1840's, when an American named, ___________, was able to significantly improve the quality of the magnified images with his microscopes.
Charles Spencer
Nucleus
Control center of the cell
Cell theory
Each cell possesses a life of its own
Organism
Functional plant or animal
Cell wall
Outer covering around a plant cell made of fibrous material
One difference between human cheek cells and onion cells is
The absence of a cell wall in human cells
Life cannot be defined by the physical sciences
True
Schleiden and Schwann believed that
cells were the basic unit of life
a binocular has how many eyepieces?
two
Who was the first person to carefully document observations of blood cells, sperm cells, and other microorganisms?
Anton van Leeuwenhoek
Plasma Membrane
Controls what comes into and goes out of the cell
Who was the first man to use the term cells to describe tiny compartments in the cork?
Robert Hooke
Nucleolus
Small structure(s) within nucleus
Organismal theory
A functioning organism represents life
Who were sixteenth century eyeglass makers that experimented with glass lenses and a tube and found that objects could be magnified greatly?
Hans and Zaccharias Janssen
Three disadvantages to using an electron microscope to view microorganisms:
High price, time consuming specimen preparation, and you can not view a living organism.
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
The electron microscope was invented in Germany during the 1930's by ___________.
Max Knott and Ernst Ruska
What is the order of these objects as it occurs in a microscope, beginning with the eye to the specimen on the stage. First- Second- Third- Fourth- Fifth-
Ocular Lens Body Tube Revolving Nosepiece Objective Lens Coverslip
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
an ocular lens is
a lens found in the eyepiece of a microscope
monocular is
a single body tube in a microscope
resolving power is the
ability to tell two points apart
an optical microscope
magnifies and object using light and lenses
an electron microscope
magnifies using streams of electrons
an objective lens is the
magnifying lens closest to the specimen
The Bible teaches that
our bodies were created, then had life breathed into them
