Archaebacteria and Eubacteria

Question 1

Are cells unicellular or multicellular for bacteria?

Answer 1

Unicellular

Question 2

Cells may be found together in chains, clumps, or _________.

Answer 2

Pairs

Question 3

What cell type is bacteria?

Answer 3

Prokaryotic - no membrane bound organelles

Question 4

Bacteria have a _________ circular piece of DNA.

Answer 4

single

Question 5

Bacteria may have extra additional small segments of DNA called __________.

Answer 5

Plasmids

Question 6

What is an obligate anaerobe?

Answer 6

Can only survive in environments without oxygen

Question 7

What is a facultative anaerobe?

Answer 7

Will use oxygen if it is available but can still produce energy and survive in the absence of oxygen.

Question 8

What are eubacteria?

Answer 8

Bacteria that have a cell wall containing peptidoglycan.

Question 9

What are archaebacteria?

Answer 9

Bacteria that have no peptidoglycan in the cell wall.

Question 10

What are the four different modes of nutrition?

Answer 10

• Photoautotroph
• Chemoautotroph
• Photoheterotroph
• Chemoheterotroph

Question 11

What is the energy and carbon source of photoautotrophs?

Answer 11

Energy source: Light
Carbon source: Carbon dioxide

Question 12

What is the energy and carbon source of chemoautotrophs?

Answer 12

Energy source: Inorganic chemicals
Carbon source: Carbon dioxide

Question 13

What is the energy and carbon source of photoheterotrophs?

Answer 13

Energy source: Light
Carbon source: Organic Compounds