Ch. 18 - 20 biology viruses and bacteria
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| non- living particles, don't grow respire, develop | ||
| a virus that infects a bacterium | ||
| inner core rna or dna | ||
| outer core of protein of viral structure | ||
| recognizes and attaches tp receptors sites on cell's plasma membrane | ||
| virus attaches, expels, takes over, reproduce and exit with killing it | ||
| integrated "provirus" and exitby exocytosis | ||
| 1st virus to be identified or tobacco mosaic virus | ||
| provirus has lysogenic cycle | ||
| have nucleic acid RNA | ||
| some undergo photosynthesis or chemosynthesis | ||
| placed on bacteria which turns pur or pi depending on the structure of their cell walls | ||
| gram negative | ||
| gram positive | ||
| rod shaped | ||
| round shaped | ||
| help bacteria survive in harsh conditions | ||
| can lay dormant for thousands of years and still survive | ||
| kills certain bacteria | ||
| spiral shaped | ||
| two main groups protozoans and algae | ||
| classified by their mobility | ||
| move and feed by false fett called psuedopods | ||
| move by cilia ex. paramecium | ||
| move by a flagella ex. euglena | ||
| parasitic protozoans ex. trypanosoma | ||
| golden algae (diatoms) unicellular outer shell made of silica | ||
| fire algae (dinoflagellates) unicellular responsible for red tide | ||
| green algae (spirogyra) multicellular | ||
| brown algae (kelp,sargassum) multicellular | ||
| red algae (polysiphonia) multicellular |