Bacteria, Archaea, and Fungi Flashcards
What are bacteria?
Prokaryotic, unicellular organisms
What are three common shapes of bacteria?
Bacillus/ rod
Coccus/ sphere
Spirillum/ spiral
What is the cell wall of bacteria composed of?
Peptidoglycans and carbohydrates
Classifying bacteria as either Gram+ or Gram- is based on ___________________ .
The amount of peptidoglycan in the cell wall
What do bacteria metabolize for survival?
Organic chemicals from the breakdown of living or dead organisms
How do bacteria reproduce?
Binary fission (a form of asexual reproduction)
Some bacteria is motile. What are 3 structures that provide movement?
- Flagella
- Pili
- Fimbriae
What are Archaea?
Prokaryotic organisms who’s cells walls do not contain peptidoglycans
Like Archaea, many extremophiles have cell walls with no peptidoglycan. What three categories are these divided into?
-Methanogens
- Halophiles
- Thermophiles
Are Archaea known to be pathogens?
No
What are fungi?
Eukaryotic organisms (either unicellular or multicellular) that can reproduce either asexually or sexually
What are two large multicellular fungi?
Molds and Mushrooms
Name a small unicellular fungi
yeast
Do fungi carry out photosynthesis?
No, they are natural decomposers who get nourishment by absorbing it from their surroundings
How do fungi move to new places to grow?
by forming spores
