Microbiology Ch. 4
The cytoskeleton ________
-anchor organelles -provides support -functions in mvmnt of cytoplasm -helps maintain cell shape
The cell's series of tunnel-like membranes functioning in transport and storage are the _____.
ER
Which of the following lines of evidence suggest that mitochondria evolved from the endosymbiosis of a pre-eukaryotic cell with a prokaryote
They -contain circular molecules of DNA -contain 70S ribosomes -divide independently from the cell
Protists include ________
algae and protozoa
All of the following are found in some or all protozoa except ________
cell wall
Mitochondria possess all of the following except ________
enzymes for photosynthesis
Scientists believe that the modern eukaryotic cell evolved 3.5 billion years ago when a photosynthetic bacteria and an aerobic bacteria fused together
false
Fungal spores differ from bacterial endospores in that ________
fungal spores are reproductive, whereas bacterial endospores are for survival
Chitin is a chemical component of the cell walls of _____
fungi
Which of the following does not pertain to helminths?
in Kingdom Protista
Which of the following is found in eukaryotic cells but not in the cells of bacteria?
nucleus mitochondria ER lysosomes
Histones are ________
proteins associated with DNA in the nucleus.
Cell walls are not usually found in _____
protozoa
Eukaryotic mitochondria have their own 70S ribosomes and circular DNA
true
The Last Common Ancestor gave rise to the cells in the three domains that we recognize today; bacteria archaea and eukaryotes
true