Cell Theory/Organells Flashcards
What did Robert Hooke discover?
Dead Cells in cork
Why did Robert Hooke call them “cells”
Because they reminded him of monastery rooms.
What did Anton van Leeuwenhoek do as a hobby?
He grinded lenses
What did Anton van Leeuwenhoek created?
A single lense microscope that could magnify up to 200X
What did Leeuwenhoek discover?
Living cells
What did Leeuwenhoek originally call the moving organisms?
Animalcules
What did Matthias Schleiden do as a job?
He was a botanist
What did Schleiden discover?
That all plants are made of cells.
When did Schleiden conclude that all plants are made of cells?
1838
What did Theodor Schwann study?
Animals
What did Schwann discover? When?
He discovered that all animals are made of cells; 1839
What did Schwann finally conclude?
That all living things (organisms) are made of cells.
What is the first part of cell theory?
Cells are the basic units of all life.
What is the second part of cell theory?
All organisms are made of one or more cells
What is the third part of Cell Theory?
All cells arise from preexisting cells.
Who are the three scientists credited with the creation of the Cell Theory?
Schleiden, Schwann, and Virchow.
Who invented the microscope
Invented by a trio of Dutch eyeglass makers in the late 1500s
What must a microscope have to be useful?
Magnification
Resolution
What is Magnification
the condition of things appearing larger than they are.
What is resolution
the degree to which two separate structures that are close together can be distinguished
Controls the movement into and out of the CELL
CELL membrane
Serves as a pathway for the transport of materials throughout the cell: also associated with synthesis
ER
With ribosomes:Rough
Without:Smooth
Watery material which contains many of the materials involved in cell metabolism
Cytoplasm
Serves as the control center for cell metabolism and reproduction
nucleus
Sites of protein synthesis
Ribosomes
Involved in the digestion of food within the cell
lysosomes
The “powerhouse” of the cell
Mitochondria
Packages and secretes the products of the cell
Golgi Bodies
Involved in cell division in animal cells
Centrioles
Fluid filled organelles enclosed by a membrane;contains stored food or wastes
Vacuole
Site of the production of ribosomes
Nucleolus
Controls movement into and out of the NUCLEUS
NUCLEAR membrane
Gives the cell its shape and provides protection; not found in animal cells
Cell Wall
Hairlike structures with the capacity for movement
Cilia
A long, hairlike structure used for movement
Flagella
Site of Photosynthesis
Chloroplasts
During cytokinesis, the new cell Wall that begins to form in the middle, dividing two sides
Cell plate
rod shaped bodies that carry genetic information
Chromosomes
