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Ch. 23 Matching
Physical Characteristics of a Bacterial Cell
| Term | Definition |
|---|---|
| Capsule | protects the cell and helps the cell attach to other cells and surfaces |
| Cell wall | protects the cell and gives the cell its shape |
| Cell membrane | regulates the types of molecules that move into and out of the cell |
| Cytoplasm | contains DNA, ribosomes, and organic compounds that are needed for life |
| Chromosome | carries genetic information from one generation to the next |
| Plasmid | carries genes that are transferred throughgenetic recombination; is a small, circular DNA loop |
| Endospore | contains DNA; is a thick-coated, resistant structure |
| Pilus | helps the cell attach to surfaces and other cells during conjugation |
| Flagellum | propels the cell by rotating in a whiplike motion |
| Outer membrane | protects the cell against some antibiotics (present only in Gram-negative bacteria) |