Medical Microbiology Semester Exam

All bacterial cells are

• prokaryotes

• Gram+

• Eukaryotes

• Multicellular

How are prokaryotes and eukaryotic cells different

• Prokaryotes do not have a membrane-bound nucleus or membrane-bound organelles

• Prokaryotes have a membrane-bound nucleus and membrane-bound organelles while eukaryotes do not

• Prokaryotes do not have DNA or genetic information

• Prokaryotes are considered nonliving and eukaryotes are living

In comparison to eukaryotic cells, prokaryotic cells are

• 2 times smaller

• 10 times smaller

• 100 times smaller

• 100 times larger

• 1000 times smaller

Prokaryotic cells do not contain a membrane bound nucleus

• True

• False

Both prokaryotes and eukaryotes contain

• cell membrane

• cytoplasm

• ribosomes

• chromosomes

• all of these

Prokaryotes contain ___________ to carry out photosynthesis, cellular respiration, and other metabolic functions.

• mitochondria

• nucleus

• enzymes

• Golgi bodies

• chloroplast

The bacterial chromosome is

• composed of a single closed loop of naked DNA

• housed in the membrane-bound nucleus

• Outside of the cell membrane

• Nonexistant

• all of the above

Why are plasmids known as "R" factors

• they can code for the retro-ness of a retrovirus

• They sometimes code for the bacterial resistance to antibiotics

• they often code for reverse synthase that occurs in bacterial DNA

• The code for the reproductive pili types

Ribosomes are the site of

• Binary Fission

• Starch storage for a long term energy source

• ATP production

• protein synthesis

Bacterial ribosomes are smaller than eurkaryotic ribosomes

• True

• False