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