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Science chapter 20
chapter 20
| Question | Answer |
|---|---|
| What are the three protists groups? | proclucers, heterotrophs that move, and heterotrophs that can't move |
| What protists are producers? | algae, seaweeds, red algae, green algae, brown algae, single-celled algae, diatoms, dinaoflagellates |
| Where do algae live? what do they all have? | in water. chlorophyll |
| red algae live where? what do they have? | deep in the tropical waters. chlorophyll, red pigment |
| what does the red pigment in red algae do? | allows the algae to absorb the light in deep waters |
| what is an example of red algae? | sebdenia |
| where do green algae live? what do they have? | water, moist soil, melting snow, tree trunks, and inside other organisms. some live in groups called colonies |
| what is an example of green algae? | volvox |
| What are in euglenoids? | chloroplasts, nucleus, contractile vacuole, eyespot, and flagella (usually two), they are single-celled |
| What is an eyespot? | it is not an eye it is something that senses light |
| contractile vacuole? | holds excess water and removes it from the cell |
| where do euglenoids live? | freshwater |
| Heterotrophs that move usually are... | single-celled consumers or parasites |
| heterotrophs are also known as... | protozoans |
| amoebas where do they live? what do they have? | fresh and salt water and parasites in animals. contractile vacuole, psuedopodia |
| what do shelled-amoeba have? | some have outershells like radiolarians |
| what is an example of a shelled-amoeba with a snail-like shell? | foraminiferans |
| where do zooflagellates live? | water and some are protists |
| if the zooflagekllate is a protist they might live in... | mutualism |
| mutualism | where one organism lives closely with another helping each other to live |
| ciliates have what? | cilia |
| cilia | hair like structures |
| what is an example of ciliates? | paramecium |
| what do paramecium have? | macronucleus, micronucleus, food vacuole, cilia, contractive vacuole, anal pore, and food passageway |
| macronucleus | the larger nucleus that controls the functions of the cell |
| micronucleus | smaller nucleus that passes genetic info to another paramecium during sexual reproduction |
| what are water molds? | decomposers or parasites |
| heterotrophs that can't move are.. | spore-forming protists |
| parasite | absorbs nutrients from host |
| can slime molds move? | during a certain phase of their life cycle they can move using psuedopodia. |
| what do slime molds eat? | bacteria and yeast |
| spores | small reproductive cells covered by a thick cell wall |
| what can survive long periods of time without water or nutrients? | spores |
| what kind of reproduction do protists have? | asexual and sexual |
| binary fission | single celled protist divides into 2 |
| multiple fission | make more than 2 offspring from one parent |
| what uses sexual reproduction? | paramecia |
| 2 paramecia exchange DNA then they... | divide into 4 paramecia |
| Can protist reproduce both ways? | yes, some alternate between generations while some depend on environment (like slime mold) |
Created by:
numnum
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