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29 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What does looking at living microbes under a microscope allow us to observe? |
Motility |
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Motility |
Directed movement |
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What is the term used to describe the slight movement of microbes that are not motile? |
Brownian motion |
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Is Brownian motion motility? |
No, this is not true motility |
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What is an ability that all living things with motility have in common? |
The ability to respond to an external stimulus by moving either towards or away from it |
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Types of movement |
1. Positive taxis 2. Negative taxis 3. Chemotaxis 4. Phototaxis |
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Positive taxis |
Movement towards a stimulus |
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Negative taxis |
Movement away from a stimulus |
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Chemotaxis |
Movement stimulated by a chemical stimulus |
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Phototaxis |
Movement inspired by light |
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What is a way to identify protozoa that does not work for identifying bacteria? Why? |
Protozoa have a variety of different morphologies, so identification of protozoans can often be done by looking at their morphology |
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What is a way to identify Protozoa in addition to morphology? |
Mode of movement |
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If two protozoans share the same mode of motility, what does that suggest about their relation? |
They are not necessarily closely related |
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General classifications of protozoans via movement |
1. Amebae 2. Flagellates 3. Ciliate |
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Amebae |
Amoeboud motion (pseudopods) |
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Flagellates |
Move via flagella |
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Ciliate |
Move via cilia |
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When observing living protozoans, what can be added to the slide to slow down their movement? |
Protoslo A viscous methyl cellulose solution |
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Domain and Kingdom of Protozoans? |
Domain Eukarya, Kingdom Protista |
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List the live protozoans observed in this lab |
1. Stentor 2. Paramecium 3. Blepharisma 4. Chaos 5. Amoeba proteus 6. Euglena |
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Classification of Stentor based on motility? |
Ciliate |
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Classification of Paramecium based on motility |
Ciliate |
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Classification of Blepharisma based on motility |
Ciliate |
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Classification of Chaos based on motility |
Amebae |
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Classification of Amoeba proteus based on motility |
Amebae |
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Classification of Euglena based on motility |
Flagellate |
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Yeast |
Eukarya, Fungi Single celled fungi that are known for their use in baking and ethanol fermentation |
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What is another means of viewing motility of microbes? |
Hanging Drop Slide |
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What microorganism did we observe in a hanging drop slide? |
Rhodospirillum rubrum |
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