Prokaryotic Diversity

The term prokaryotes refers to which of the following?

• 1. very small organisms

• 1. unicellular organisms that have no nucleus

• 1. multicellular organisms

• 1. cells that resemble animal cells more than plant cells

The term microbiota refers to which of the following?

• 1. all microorganisms of the same species

• 1. all of the microorganisms involved in a symbiotic relationship

• 1. all microorganisms in a certain region of the human body

• 1. all microorganisms in a certain geographic region

Which of the following refers to the type of interaction between two prokaryotic populations in which one population benefits and the other is not affected?

• 1. mutualism

• 1. commensalism

• 1. parasitism

• 1. neutralism

Which of the following describes Proteobacteria in domain Bacteria?

• 1. phylum

• 1. class

• 1. species

• 1. genus

All Alphaproteobacteria are which of the following?

• 1. oligotrophs

• 1. intracellular

• 1. pathogenic

• 1. all of the above

• 1. none of the above

Class Betaproteobacteria includes all but which of the following genera?

• 1. Neisseria.

• 1. Bordetella.

• 1. Leptothrix.

• 1. Campylobacter.

Haemophilus influenzae is a common cause of which of the following?

• 1. influenza

• 1. dysentery

• 1. upper respiratory tract infections

• 1. hemophilia

Which of the following is the organelle that spirochetes use to propel themselves?

• 1. plasma membrane

• 1. axial filament

• 1. pilum

• 1. fimbria

Which of the following bacteria are the most prevalent in the human gut?

• 1. cyanobacteria

• 1. staphylococci

• 1. Borrelia

• 1. Bacteroides

Which of the following refers to photosynthesis performed by bacteria with the use of water as the donor of electrons?

• 1. oxygenic

• 1. anoxygenic

• 1. heterotrophic

• 1. phototrophic