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Cell membrane
protective outer covering of all cells that regulates the interaction between the cell and the environment.
Cytoplasm
constantly moving gel-like mixture inside the cell membrane that contains heredity material and is the location of most of a cell’s life processes.
cell wall
rigid structure that encloses, supports, and protects the cells of plants, algae, fungi, and most bacteria.
organelle
structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances.
nucleus
organelle that controls all the activities of a cell and contains hereditary material made of proteins and DNA
chloroplast
green, chlorophyl-containing, plant-cell organelle that uses light energy to produce sugar from carbon dioxide and water.
mitochondrion
cell organelle that breaks down food and releases energy.
ribosome
small cytoplasmic structure on which cells make their own proteins.
endoplasmic reticulum
cytoplasmic organelle that moves materials around in a cell and is made up of a complex series of folded membranes.
Golgi bodies
organelles that package cellular materials and transport them within the cell or out of the cell.
tissue
group of similar cells that work together to do one job.
organ
structure, such as the heart, made up of different types of tissues that all work together.
photosynthesis
process by which plants and many other producers use light energy to produce a simple sugar from carbon dioxide and water and give off oxygen
magnify
to increase the size of something
cell theory
states that all organisms are made up of one or more cells, the cell is the basic unit of life, and all cells come from other cells
disease
a condition that results from the disruption in one or more of an organisms normal processes
virus
a strand of hereditary material surrounded by a protein coating
host cell
living cell in which a virus can actively multiply or in which a virus can hide until activated by environmental stimuli.
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