Infection

Question 1

Bacteria

Answer 1

unicellular prokaryotic cells

Question 2

Pathogens

Answer 2

disease-causing microbes; germs

Question 3

Bacilli

Answer 3

rod-shaped

Question 4

Spirochetes and spirilla

Answer 4

spiral; coiled or wavy

Question 5

Cocci

Answer 5

spherical

Question 6

Diplo-

Answer 6

pairs

Question 7

Strep(to)

Answer 7

chains

Question 8

Staph(ylo)

Answer 8

irregular, grapelike clusters

Question 9

Tetrads

Answer 9

grouped in a packet or square of four cells

Question 10

Palisade

Answer 10

lying together with long sides parallel

Question 11

Features of bacteria

Answer 11

rigid outer cell wall, cell membrane, external capsule/slime layer, flaggela, pili or fimbriae, cytoplasm, toxic substances, replicate via binary fission

Question 12

Features of bacteria

Answer 12

rigid outer cell wall, cell membrane, external capsule/slime layer, flaggela, pili or fimbriae, cytoplasm, toxic substances, replicate via binary fission

Question 13

Features of viruses

Answer 13

obligate intracellular parasite; protein coat, replication via assembly/release of new viral components to infect other host cells,

Question 14

Features of fungi

Answer 14

eukaryotic, single-celled or chains of cells, hyphae, mycelium

Question 15

Features of protozoa

Answer 15

eukaryotic, single-celled, usually parasitic

Question 16

Features of helminths

Answer 16

worms: tapeworms, hookworms, pinworms; parasitic, eggs or larva may be ingested in contaminated food; often found in intestine and ingest nutrients meant for host; when many are present they can cause serious systemic effects

Question 17

Features of algae

Answer 17

eukaryotic; medical concerns involving algae include toxins from marine animals who have ingested algae

Question 18

Features of prions

Answer 18

abnormal molecule transmissible in tissues or blood of animals or humans; induces protein transformation in the brain, causing degenerative disease of the nervous system such as Creutzfeld-Jakob disease.