Exam 25: Bacteria and Archaea

MATCHING Match the group of bacteria with the description a.resemble fungi d.lack cell walls b.waxy cell wall e.contain chlorophyll c.lack proteoglycan in cell walls -Chlamydia

Identify and briefly discuss two ecological roles filled by bacteria.

MATCHING Match the group of bacteria with the description a.resemble fungi d.lack cell walls b.waxy cell wall e.contain chlorophyll c.lack proteoglycan in cell walls -Mycoplasma

MATCHING Match the group of bacteria with the description a.resemble fungi d.lack cell walls b.waxy cell wall e.contain chlorophyll c.lack proteoglycan in cell walls -Describe endotoxins and exotoxins.What effects do they each have on infected persons?

A(n) __________ bacterium would not be able to survive in the presence of oxygen.

The volume of a typical bacterium is about __________ the volume of a typical eukaryotic cell.

Prokaryotes have a nucleus which contains DNA. ____________________

Prokaryotes reproduce asexually by the processes of binary fission, budding, and transformation.

One unique characteristic associated with some of the extreme halophilic Archaea is that:

MATCHING Match the group of bacteria with the description a.resemble fungi d.lack cell walls b.waxy cell wall e.contain chlorophyll c.lack proteoglycan in cell walls -Discuss the distinction between gram-negative and gram-positive bacteria.In the laboratory, how is this determined? What are differences between these two groups of bacteria?

Rod-shaped bacteria are called:

Compare and contrast the metabolic diversity of bacteria in one of the two groups below. A. Obligate anaerobes, facultative anaerobes, and aerobes B. Autotrophic and heterotrophic bacteria

Small circles of DNA called __________ exist in addition to the bacterial chromosome.

Which of the following statements about bacteria is false?

Bacterial plasmids often have genes that code for genetic exchange or antibiotic resistance. ____________________