Quiz - Bio 7.1 & 7.2

Which of the following domains of life contain all prokaryotic life forms?

• Only Archaea

• Eukarya and Archaea

• Bacteria and Archaea

• Bacteria and Eukarya

Which type of cell is single-celled and lacks a nucleus?

• animals

• prokaryotes

• plants

• eukaryotes

_______ is similar between the domains of Archaea and Eukarya, yet unique in Bacteria.

• Protein synthesis

• Flagella

• Peptidoglycan in the cell wall

• None of these

The prokaryotes are the most numerous organisms on Earth.

• True

• False

Prokaryotes are categorized into four domains.

• True

• False

Outer membranes of gram negative bacteria are made up of _____.

• Cellulose

• Polysaccharide

• Glycolipids

• Lipopolysaccharide

Cyanobacteria make food through _____.

• Photosynthesis

• Respiration

• Transpiration

• None of these

Ancient prokaryotes contributed to Earth’s oxygen-rich atmosphere.

• True

• False

Bacteria can be classified on the basis of :

• Presence or absence of a nucleus

• Gram-positive or Gram-negative

• Method of nutrition

• None of these

Any type of Archaea that live in an extreme environment such as very salty, hot, or acidic environments are called psychrophils.

• True

• False