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AIDS
acquired immune deficiency syndrome; allos the body
to be infected by many organisms that cause disease.
cell membrane
A structure that forms the outer boundary of the
cell and allows only certain materials to move into and out of the cell.
cell theory
One of the major theories in science which serves
as the basis for scientists who study the parts of cells, cell
organization, reproduction and change through time.
cell wall
A rigid structure outside the cell membrane that
supports and protects the plant cell.
chloroplast
Organelles in plant cells in which light energy is
changed into chemical energy in the form of sugar.
chromatin
A form of hereditary material made up of proteins
and DNA.
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compound light microscope
Used to study life science, it lets light pass
through an object and then through two or more lenses, and magnifies
organisms making details of structures visible.
cytoplasm
The gel-like material inside the cell membrane and
outside the nucleus.
electron microscope
Uses a magnetic field to bend beams of electrons
and shows details that cannot be seen using a clm.
endoplasmic reticulum
(ER) A folded membrane that moves materials around
in the cell.
Golgi body
Stacks of membrane-covered sacs that package and
move proteins to the outside of the cell.
host cell
The cell in which a virus reproduces.
lysosome
Organelles which contain chemicals that digest
wastes and worn-out cell parts as well as break down food.
mitochondria
Organelles where food molecules are broken down and
energy is released. (the powerhouse of the cell).
nucleus
The largest organelle/a structure that directs all
the activities of the cell.
organelle
Structures within the cytoplasm of eukaryotic cells
which have a specific job or jobs.
ribosome
Structures in the cytoplasm which receive
directions from the hereditary meterial inthe nucleus on how and when to
make specific proteins.
vaccine
Made from damaged virus particles that can't cause
disease. Developed to prevent childhood and adult diseases.
virus
A piece of hereditary material covered by protein that infects and
reproduces only inside a living cell.
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