Life science
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31 Terms
Cell Theory
The model that cells make up all living things, come from preexisting cells, and perform the functions of living things.
Organ
A group of tissues that work together
Tissue
A group of similar cells that work together
organelle
The usually membrane surrounded structure in eukaryotic cells that perform functions.
Cell membrane
The structure that surrounds the cell and regulates what comes in and goes out.
Cell wall
A rigid structure that surrounds and protects some cells.
Capsule
A slimy layer surrounding some bacteria that protects them from harmful substances and prevents them from drying out.
Cytoplasm
The material inside of the cell excluding the nucleus
Flagellum
A whip like structure that some cells use to propel themselves through their environment.
DNA
The molecule that contains important information for making proteins and helps regulate many cellular processes