CH 4 Test Material Flashcards
Define Multicelluar
More then One Cell
Define Unicelluar
One Cell
Define Cell Theory
The theory that states that all living things consists of Cells, that the Cell is the basic structural and functional unit of life, and that all cells come from pre-existing cells
Define Cell
The basic structural and functional unit of life
Define Cytoplasm
The watery substance in a cell in which the organelles are suspended; also used for transport and chemical reactions
Define Organelles
A small structure found within a cell; performs a specific function in a cell
Define Cell Membrane
The part of a cell that surrounds and holds the cell contents together; controls movement of substances into and out of a cell
Define Ocular Lens
This is the lens you look through to view the specimen. The ocular lens magnifies the specimen.
Define Objective Lens
These lenses magnify the specimen. There are usually three objective lenses: a low-power objective lens, a medium-power objective lens, and a high-power objective lens.
What are the 3 types of Microscopes and their uses?
Compound Microscope: This microscope is commonly called the compound light microscope because it uses lenses and a light source to magnify the specimen.
light microscope: use light to see speciemens
electron microscopes: use electron beams to see speciemens
What are the Charcteristics of Living things?
• Living things produce waste
• Living things grow in size, reproduce, and are able to repair themselves
• Living things require energy.
• Living things respond to changes in their environment.
• Living things have a lifespan.
What is the formula for calculating Magnification of a Microscope?
Ocular lens magnification x Objective lens magnification
What is the difference between Plant and Animal Cells
