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ch. 5 protozoa
life stages trophozites and cysts
| Question | Answer |
|---|---|
| cyst have | cells with protective walls when condtions are harsh |
| encystment | in |
| excystment | out |
| trophozoites reproduction | asexual schizogony and sexual gametogony |
| asexual schizogony | nucleus divides and cell divides, merozoites |
| sexual gametogony | haploid gametes that fuse through syngamy |
| conjugation | join to exchange DNA |
| plasmalemma | plasma membrance |
| pellicle | 2 bands of protein inside membrane for extra structure |
| ectoplasm | outer layer w/actin |
| endoplasm | cytoplasm |
| cytosome | specialized structure for phagocytosis, feeding |
| holozoic | ingesting whole food particles |
| saprozoic | ingesting small soluble food molecules |
| cytoproct | waste and exocytosis |
| contractile vacuoles | move water out of cell for osmotic regulation |
| kinteoplast | variation of mitochondira, DNA concentrated at one pole of the cell |
| hydrogenosomes | produce hydrogen used in metabolism came from mitochondria |