LAB 6: Bacteria and Eukarya

• What are the three domains recognized in the taxonomic classification system?

  Archaea, Eukarya, Bacteria
• Are the photoautotrophs known as blue-green algae prokaryotes or eukaryotes?

  Prokaryotes
• What is the technical name for the part of certain funguses known as a "mushroom"?

  Basidiocarp
• Are diatoms, Chlamydomonas, and Chondrus photoautotrophs or chemoheterotrophs?

  Photoautotrophs
• What is taxonomy?

  The science of classification
• Prokaryotes have no membrane-bound nucleus, and are usually covered by a cell wall of peptidoglycan.
• Are bacteria photoheterotrophs or chemoheterotrophs?

  Chemoheterotrophs
• What are the three basic shapes of bacteria?

  Bacillus (rod-shaped), coccus (spherical), and spirillum (corkscrew-shaped)
• Achinetes: inactive cells encased in a protective shell until conditions improve
• What are the four eukaryotic kingdoms?

  Animalia, Plantae, Fungi and Protista
• What are diatoms?

  These are microscopic, unicellular, photoautotrophic organisms. They come in a variety of regular geometric shapes and textures.
• Brown and red algae are also called seaweeds, they are multicellular, macroscopic, photoautotrophic, and almost exclusively marine.
• What is green algae?

  These are closely-related to plants. Some are unicellular, some form colonies, and a few are multicellular. They all are photoautotrophs.
• What are amoebozoa?

  These protists are constantly changing shape and are unicellular chemoheterotrophs. They move by streaming their cytoplasm into pseudopodia (false legs).
• What are ciliates?

  Members of this group are oval unicellular chemoheterotophs that typically feed by endocytosis through an oral groove. They swim by waving short hair-like cilia.