Prokaryotes

If a unicellular organism has a cell wall containing peptidoglycan and one plasma membrane, it must be a _________.

• eukaryote

• gram-negative bacterium

• archean

• gram-positive bacterium

Which of these involves a virus transferring DNA from cell to cell?

• Conjugation

• Transduction

• Binary fission

• Transformation

Which of these involves direct transfer of a plasmid from cell to cell?

• Conjugation

• Transduction

• Binary fission

• Transformation

Which of these taxa includes thermophiles?

• Spirochaetes

• High-GC gram positives

• Crenarchaeota

• Euryarchaeota

Mitochondria evolved from a member of the ________.

• Proteobacteria

• Chlamydias

• Cyanobacteria

• Euglenids

Chloroplasts originally evolved from a member of the ________.

• Proteobacteria

• Chlamydias

• Cyanobacteria

• Euglenids

Most bacteria are pathogenic.

• True

• False