Prokaryote Diversity

Which group is closer to eukarya in terms of evolutionary relationships?

• Bacteria.

• Archaea.

• Cyanobacteria.

• Gram-positive bacteria.

What is a characteristic of the Epsilon group of prokaryotes?

• They are known for photosynthesis.

• Most species are pathogenic to humans or animals.

• They form fruiting bodies to release spores.

• They are involved in nitrogen fixation.

Tags

NGSS.MS-LS2-1

What happens when soil dries out or food is limited for slime-secreting myxobacteria in the Delta group?

• They become dormant.

• They form fruiting bodies that release spores.

• They start photosynthesis.

• They produce toxins to kill other organisms.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS1-5

What is a defining feature of Chlamydias in terms of their cell wall structure?

• They have a thick peptidoglycan layer.

• They lack peptidoglycan and are Gram-negative.

• They have a double membrane with peptidoglycan.

• They have a single membrane and are Gram-positive.

Tags

NGSS.MS-LS4-2

Which domain does Chlamydias belong to in the phylogenetic tree?

• Domain Eukarya

• Domain Archaea

• Domain Bacteria

• Domain Protista

What is the initial stage of infection in the life cycle of Chlamydia?

• Reticulate bodies enter the host cell.

• Elementary bodies enter an epithelial cell.

• Inclusion bodies are formed.

• The host cell dies.

Treponema pallidum is responsible for which disease?

• Lyme disease

• Syphilis

• Cholera

• Influenza

Which type of bacteria is abundant in marine and freshwater phytoplankton?

• Cyanobacteria

• Purple bacteria

• Green bacteria

• Heterotrophic bacteria

Tags

NGSS.MS-LS2-3

What is the primary characteristic of cyanobacteria?

• They are Gram-positive autotrophs.

• They are Gram-negative photoautotrophs.

• They are heterotrophic bacteria.

• They are Gram-positive heterotrophs.

Tags

NGSS.MS-LS1-6

Which of the following bacteria is commonly associated with soil and is a source of antibiotics?

• Streptomyces

• Staphylococcus

• Streptococcus

• Clostridium botulinum