Bacteria Structure & Function

^{How long do scientists belie bacteria have been in existence?}

• 4.6 Billion years

• 3.5 Billion Years

• 3.5 Million Years

• We have no evidence available to determine this.

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Initially, ALL bacteria were classified together in a single Prokaryotic Kingdom called:

• Kingdom Prokaryota

• Kingdom Monera

• Kingdom Archae

• Kingdom Bacteria

Today, scientists divide bacteria into TWO Prokaryotic Kingdoms:

• Monera and Eubacteria

• Bacteria and Prokaryota

• Archaebacteria & Eubacteria

• Archaebacteria & Monera

Which of the following best describes the difference used to separate bacteria into the two different kingdoms?

• Eubacteria have Peptidoglycan in their cell walls whereas Archaebacteria do not.

• Archaebacteria have Peptidoglycan in their cell walls whereas Eubacteria do not.

• Archaebacteria lack a nucleus whereas the Eubacteria have a nucleus.

• Archaebacteria live in harsh environments whereas Eubacteria live in every habitat on earth.

Where would you find "thermoacidophiles" living?

• in the oxygen-free mud at the bottom of swamps & bogs

• in extremely salty bodies of water like the dead sea and great salt lake

• in hot, acidic springs and geyser pools.

• in your lower intestine

Where would you find a "halophile" bacteria living?

• In the oxygen-free mud at the bottom of swamps & bogs

• in extremely salty bodies of water like the Dead Sea and the Great Salt Lake.

• In hot, acidic springs and geyser pools

• in your lower intestines

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Where could you find Eubacteria living?

• in the air we breath

• in rivers, lakes, and oceans

• in the soil

• on our skin and in our digestive system

• Eubacteria can live in ALL of these places

What units are bacteria measured in?

• Nanometers (nm)

• Kilometers (Km)

• Milimeters (mm)

• Micrometers (um)

This spherical shaped bacteria is called:

• baccilli

• cocci

• spirilli

• none of the above

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This bacteria shape is called:

• spirilli

• bacilli

• cocci

• bacteriophage