Chapter 4

Question 1

Saprobes

Answer 1

organisms that obtain nutrients from dead plants or animals in soil or aquatic habitats

Question 2

Transitional and condensing vesicles

Answer 2

tiny membrane bound packets of protein that bud off ER and get picked up by golgi

when finished pinched off golgi and carry proteins to other organelles or go outside of the cell

Question 3

Pinworm (roundworm) Life Cycle: Infection and Transmission

Answer 3

1. swallowed (self infection)
2. copulatory spicule (in guts)
3. emerge from anus
4. scratching contaminates hands with fertile egg
5. re-infects host or cross infects a new host

Question 4

Intermediate (secondary) host
Transport host
definitive (final) host

Answer 4

• larval development occurs
• intermediate host with no parasitic development
• adulthood and mating occurs

Question 5

enterbiasis

Answer 5

an infection from the helminth pinworm

Question 6

Enterobius vermicularis

Answer 6

causative agent for pin worm infection

Question 7

dimorphic

Answer 7

fungi that can exist in a yeast or hyphae form

Question 8

septa and nonsptate

Answer 8

hyphae divided into segments by cross walls

long, continuous cell NOT divided into individual compartments by cross walls

Question 9

Trophozoite

Answer 9

vegetative, free living form of a protozoal cell

Question 10

Twp subtypes of asexual fungal spores

Answer 10

sporangiospores-cleavage in sac like head

conidia- free spores

Question 11

vegetative hyphae (mycelia)

Answer 11

responsible for visible growth of fungus

give rise to structures that produce fungal spores

penetrates substrate to absorb nutrients

Question 12

Protozoan Cyst

Answer 12

a resistant dormant stage

Question 13

Cestodes

Trematodes

Nematodes

Answer 13

one of the two subdivisions of flat worms (tapeworms) ribbon like arrangement

the other subdivision of flat worms (flukes) flat ovoid bodies

roundworms and flatworms

Question 14

Two forms of microspcopic fungi

Answer 14

yeasts and hyphae

Question 15

Eukaryotic Flagellum

Answer 15

structurally more complex than bacterial flagella

covered by an extension of the cell membrane

Question 16

Mycoses

Answer 16

are referred to as “fungal infections”

Question 17

Cisternae (singular, cistern) Function

Answer 17

transport materials from the nucleus to the cytoplasm and ultimately to the cell’s exterior

Question 18

Cooperation of organelles in protein synthesis and transport (order)

Answer 18

nucleus–RER–Golgi–vesicles–secretion

Question 19

Psuedohyphae

Answer 19

chain of yeast cells formed when buds remain attached in a row

Question 20

Candida albicans

Answer 20

effects mucous membranes, skin and nails can also be caused a yeast infection

Question 21

Infections from fungi are more common for people with what types of illnesses?

Answer 21

AIDS, cancer, diabetes

Question 22

Why shouldn’t women change a litter box while pregnant?

Answer 22

a parasitic protozoan Toxoplasma gondii found in cat feces which does not become infectious until 1-5 days after defecation. Which can infect fetus causing birth defects

Question 23

The Protozoan Ciliophora causes

Answer 23

Balantidiosis

Question 24

The protozoan Mastigophora causes

Answer 24

Giardiasis

Question 25

The protozoan Apicomplexa causes

Answer 25

malaria

Question 26

The protozoan Sarcodina causes

Answer 26

ameobiasis