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Biology Chapter 19
Stack #58926
| Word | Definition |
|---|---|
| eukoryotic | membrane bound organelles |
| pseudopods | "false feet" temporary extensions of cytoplasm |
| How do Amoeba's move? | By using pseudopods. |
| phagocytosis | an organism surrounds its pray with it's membrane which forms a food vacuole. |
| What does the contractile vacuole do? | controls the water balance of the cell |
| ciliates | one celled organisms that use cilia to swim and capture food |
| cilia | short, hairlike structures extending from the cell |
| the paramecium is shaped like | a slipper |
| pellicle | flexible protein under the cell membrane |
| trichocysts | capsules under the pellicle that release structures with barbs at the end for defense, and to anchor the organism |
| How do the rows of cilia occur in a paramecium? | parallel rows, coordinated |
| oral groove | opening in a paramecium where food is ingested |
| gullet | extention of the oral groove that forms food vacuoles |
| anal pore | structure through which undigested material is expelled from the cell |
| flagellates | animallike protists, move by flagella |
| What is the main way to classify algae? | the type of photosynthetic pigments they contain |
| Describe Golden Algae | photosynthtic, golden color from pigments other than chloraphyll. Found in ocean and fresh water. Most are Diatoms. |
| diatoms | autotrophic, unicelular protists that have a cell wall with 2 overlapping halves, the cell wall contains pectin, usually reproduce asexually. |
| What is the most common member of Fire Algae? | dinoflagellates |
| What can dinoflagellates do? | produce light |
| Unique characteristics of the Euglena | - chlorplasts can disappear - eyespot -no cell wall |
| One example of Colonial Green Alge | Volvox |
| 3 Multicellular algae: | Red, Brown, Green |
| Red Algae have | holdfasts |
| Brown Algae are also called | kelps |
| Brown algae contain | air bladders and holdfasts |
| what do air bladders do? | keep them afloat |
| what do holdfasts do? | anchor to rocks |
| what is an example of green algae? | Spirogyra |