Straighterline Microbiology Final Ch 4
Questions And Answers With Correct
Solutions Guaranteed Success
what is the difference between bacteria/archaea and eukaryotes when it comes
to DNA? - ANSWER✔✔ Bacteria and archaea have nuclear material that is free in
the cytoplasm
Eukaryotes have a nucleus
What is the difference between bacteria cell wall and archaea? - ANSWER✔✔
Bacteria: cell wall made of peptidoglycan
Archaea: cell wall distinct from bacteria and eukaryotes
What cell structures are found in all bacteria - ANSWER✔✔ cytoplasmic
membrane
chromosone/nucleiod
ribosomes
cytoplasm
Cyctoplasmic membrane - ANSWER✔✔ a thin sheet of lipid/protein that
surrounds the cytoplasm and controls flow of materials in/out of cell pools
Energy reactions
Nutrient processing
, Synthesis
Regulate transport: Passage of nutrients into the cellDischarge of wastes
Bacterial chromosome or nucleoid - ANSWER✔✔ composed of condensed DNA
molecules. DNA directs all genetics and heredity of the cell and codes for all
proteins
ribosome - ANSWER✔✔ Makes proteins
cytoplasm - ANSWER✔✔ water-based solution filling the entire cell
S layer - ANSWER✔✔ monolayer of protein used for protection and/or
attachment
Fimbriae - ANSWER✔✔ fine bristles that help attach to cells/surfaces
outer membrane - ANSWER✔✔ controls flow of materials and portions of it are
toxic to mammals when released
cell wall - ANSWER✔✔ A rigid structure that surrounds the cell membrane and
provides support to the cell
actin cytoskeleton - ANSWER✔✔ long fibers of proteins that encircle the cell just
inside the cell membrane and contribute to the shape of the cell
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