11/21 Flashcards
all animals made up of cells
Theodor Schwann
an instrument that makes small objects look larger
Microscope
cork
created compound microscope
Robert Hooke
Has more than one lens
Compound Microscope
new cells are formed only from cells that already exist
Rudolf Virchow
this is widely explained of the relationship between cells and living things
Cell Theory
one-celled organisms in lake water animalcules he also created
simple microscope.
Anton van Leeuwenhoek
making an object appear larger
Magnification
concluded that all plants were made up of cells and used the compound microscope
Matthias Scleiden
making an object appear clearer distinguish individual parts
Resolution
T/F
The cell theory is only true for living things that’s are small
false
Curved thicker middle lens
Convex
T/F
Organisms that have cells lack a nucleus are prokaryotes
True
A light microscope can magnify objects up to ___ times their original size
1,000
T/F
Magnification is the ability to make things look larger than they are
true
__ is an instrument that makes small objects appear larger
microscope
T/F
Chromatin floats in the nucleus which contains the genetic material or instructions for the cells functions
true
__ is a rigid layer of nonliving material that surrounds the plant cell
cell wall
T/F
Schwann worked alone to develop the cell theory
False
__ is the microscope that has better resolution
electron microscopes
The lenses in a light microscope magnifies an object by ___ the light that passes through it action word in your reading
bending
Compare and contrast magnification and resolution .
Both magnification and resolution help you see things better but magnification makes it larger whereas resolution makes it clearer.
Name the three parts of the cell theory in order.
All living things are composed of cells
Cells are the basic units of structure and function in living things
All cells are produced from other cells
How do the cells of bacteria differ from those of other organisms? prokaryote and eukaryote.
Cells of bacteria lack a nucleus.
Describe the difference between a light microscope and an electron microscope.
A light microscope uses lenses that focus light through the specimens whereas an electron microscope uses beams of light electricity from electricity.
