Bacteria and Archaea Quiz

The Gram-positive bacteria stain purple because

• they form thin outer membrane

• they have thick outer membrane

• they have thin peptidoglycan layer

• they have thick peptidoglycan layer

Which compound in the cell wall that causes a Gram positive bacteria stain purple in colour when it is treated with crystal violet dye?

• Outer membrane

• Lipoprotein

• Peptidoglycan

• Lipopolysaccharide

The scientific name of a bacteria is Streptococcus aureus. Which species does it belong to?

• Streptococcus

• aureus

• bacteria

• Monera

The most common mode of reproduction in bacteria is

• binary fission

• transformation

• transduction

• conjugation

Which domain has organisms that live in harsh environments?

• Bacteria

• Archaea

• Both

Are archaea multicellular or unicellular?

• Multicellular

• Unicellular

The THREE shapes of bacteria are

• Square, round, rod

• spiral, cylinder, rod

• rod, spiral, spherical

• rod, round, cylinder

Are bacteria multicellular or unicellular?

• Multicellular

• Unicellular

Are archaea prokaryotes or eukaryotes?

• Prokaryotes

• Eukaryotes

Which domain has organisms that live in many environments (in normal conditions)?

• Archaea

• Bacteria

• Both