MIC461 Chapter 6

Archaea are very similar to bacteria except their cell wall is made up of cellulose.

• True

• False

tRNAs of archae are different from other living organisms. They are more ___________-like,

• virus

• bacteria

• eukaryotic

• human

Membrane-bound organelles are absent in archaea.

• True

• False

Archaea lacks flagella

• True

• False

Some of the main differences of membrane components of archaea in comparison to bacteria and all other living things include....

• Isoprenoid chains instead of fatty acid

• Branching of the fatty acid chains

• Ether linkage between glycerol and the isoprenoid chain

• Chirality of glycerol in the phospholipids structure

• Fatty acid chain instead of isoprenoid

A resistant DNA polymerase enzyme, Pfu, that works best at 100 ^oC is used for PCR and is isolated from the organism ____________.

• T4 Bacteriophage

• Pyrococcus furiosus

• Thermus aquaticus

• Sacchromyces cerevisiae

The following are TRUE about dinoflagellates except...

• They have two flagellum, one at the tail and one surrounding the cell in a groove

• Some dinoflagellates are bioluminescence.

• Some of them can't produce their own food.

• All dinoflagellates are harmless

Diatoms have cell walls surrounded by loosely attached ________________ and _______________.

• silicon dioxide, potassium carbonate

• silicon, calcium carbonate

• silicon dioxide, calcium chloride

• silicon, sodium carbonate

The sexual structure of club fungi is called....

• basidia

• ascus

• mycelia

• septa

Which class of fungi have complex mycelia with hyphae lacking septa.

• Club fungi

• Sac fungi

• Ascomycota

• Bread molds