Bacteria Gr.12

Which are prokaryotic organisms that belong to Domain Bacteria?

• Bacteria

• Archaea

• Eukarya

• virus

______are prokaryotes that live in extreme environments and are sometimes called extremophiles. This group of organisms have been found to have some similarities with eukaryotic cells, such as cytoplasm proteins and histones.

Bacteria have all of the following characteristics except:

• cell walls with peptidoglycan

• found almost everywhere

• eukaryotic

• unicellular

Which type of archaea thrive in temperatures above 80°C and pH levels of 1–2?

• Halophiles

• Methanogens

• Thermoacidophiles

Which is true of bacterial cells?

• They are multicellular.

• Their cell walls contain peptidoglycan.

• They live in extreme environments.

• Their ribosomal proteins are similar to those of eukaryotic cells.

_____(sometimes called eubacteria) are prokaryotic organisms that belong to Domain Bacteria.

Prokaryotes can have all of the following characteristics except:

• membrane-bound nucleus

• ribosomes

• DNA

• unicellular

Which is the area in a prokaryotic cell that contains a large, circular chromosome?

• Endospore

• Nucleoid

• Pili

• Capsule

_________have strong cell walls that contain peptidoglycan.

_____ have several adaptations that allow them to live in salty environments.