Topic 3 Flashcards
Who is Robert Hooke?
Identified and named cells by studying cork.
Who was Anton Van Leeuwenhoek?
He observed cells and bacteria (animacules).
Who was Matthias Schleiden?
He noted that all plants are made of cells.
Who was Theodor Schwann?
He concluded that all living things are made up of cells.
Who was Rudolf Virchow?
He proposed that all cells come from other cells.
What are the three components of the cell theory?
1) All living things are made of cells
2) Cells are the basic structure and function in living things
3) All cells are produced from other cells
What are cells?
Cells are the basic building blocks of all living things.
What is structure?
Refers to what an object is made of and how its part are put together.
What is function?
Refers to biological functions such as obtaining energy, getting rid of wastes, and bringing in nutrients and water.
What is a microscope?
A microscope is an instrument that makes small objects look larger.
What is a compound microscope?
A compound microscope uses two or more lenses to magnify the object by bending the light that passes the object by bending the light that passes through them.
What is the Eyepeice?
It is the ocular lens and contains a lens that magnifies about 10x.
What is the body tube?
It separates the eyepiece lens from the objective lens.
What is the revolving nosepiece?
It holds the low-power and high-power objective lenses to power objective lenses to rotate for viewing.
What is the scanning objective?
It magnifies 4x.
