| A | B |
| Lactobacillus | bacteria used to make yogurt |
| virus | small particle that infects living things |
| capsid | protein coat surrounding a virus |
| structure of virus | DNA or RNA surrounded by protein coat |
| lytic cycle | viral DNA causes host cell to make more virus |
| lysogenic cycle | viral DNA incorporates into host DNA |
| Archaebacteria | 1-celled prokaryotes that lack peptidoglycan/live in harsh environments |
| Eubacteria | one-celled prokaryotes with peptidoglycan in cell walls/familiar |
| E.coli | eubacteria that inhabit large intestine |
| streptococcus | eubacteria that causes strep throat |
| streptomyces | eubacteria that produces antibiotic |
| structure of bacteria | cell wall, cell membrane, DNA, ribosomes |
| peptidoglycan | found in cell walls of Eubacteria |
| coccus | round or oval-shaped bacteria |
| bacillus | rod-shaped bacteria |
| spirillum | spiral-shaped bacteria |
| antibiotics | substances that prevent bacteria from reproducing/growing |
| saprobes | heterotrophic bacteria that live on dead organisms |
| parasites | heterotrophic bacteria that live on or in living organisms |
| binary fission | bacteria reproduces by replicating DNA and dividing into 2 equal-sized cells |
| conjugation | 2 bacteria form bridge of cytoplasm, exchange DNA, divide by binary fission |
| endospores | protective coating formed by some bacteria when conditions are hostile |
| reproduction | only life process carried out by virus |
| herpes simplex virus | causes cold sores (lysogenic) |
| rhinovirus | causes common cold (lytic) |
| shingles | occurs when chicken pox virus switches back to lytic cycle |
| obligate aerobes | bacteria that require oxygen |
| obligate anaerobes | bacteria that cannot live in the presence of oxygen |
| facultative aerobes | bacteria that can use aerobic or anaerobic respiration |
| bacteriophage | virus that infects bacterial cells |