Lecture 8 - Slime molds - fungus-like eukaryotes

Question 1

• have both fungal and amoeba-like qualities
• hunters of bacteria and fungi
• will produce spores in unfavorable conditions (survival, not reproduction)

Answer 1

slime molds

Question 2

life cycle of cellular slime molds

Answer 2

1. amoeba stage
2. slug stage
3. fruiting body

Question 3

germinate from a spore

Answer 3

amoeba stage

Question 4

• many amoebas aggregate and sheath forms
• migration

Answer 4

slug stage

Question 5

releases spores which germinate into amoebas

Answer 5

fruiting body

Question 6

plasmodial (acellular) slime molds

Answer 6

• mass of protoplasm with many nuclei (plasmodium)
• capable of sexual reproduction

Question 7

Two phyla of slime molds

Answer 7

1. cellular slime molds
2. plasmodial slime molds

Question 8

favorable conditions, cellular slime mold exist as

Answer 8

amoeba

Question 9

unfavorable conditions, cellular slime molds

Answer 9

• congregate and fuse
• form multicellular mushroom

Question 10

favorable conditions, plasmodial slime molds exist

Answer 10

• plasmodium
• giant “amoeba”

Question 11

plasmodium

Answer 11

multi-nucleate mass of protoplasm

Question 12

unfavorable conditions, plasmodial slime molds

Answer 12

• mold like
• spread out forming “mycelium
• produce clump of spores

Question 13

• few are human parasites
• anatomy and life cycle modified for parasitism
• adult stage in definitive host
• each larval stage in specific intermediate host

Answer 13

helminths (parasitic worms)

Question 14

helminths phylum

Answer 14

1. Platyhelminthes (flatworms)
2. Nematoda (roundworms)

Question 15

class under Phylum Platyhelminthes

Answer 15

1. Trematodes (flukes)
2. Cestodes (tapeworms)

Question 16

host of helminths in adult stage

Answer 16

definitive host

Question 17

host of helminths in each larval stage

Answer 17

specific intermediate host

Question 18

Life cycle of helminths

Answer 18

Egg –> larva(e) –> adult

Question 19

two types of helminths reproductive system

Answer 19

1. monoecious
2. dioceious

Question 20

• male and female reproductive system in one animal
• hermaphroditic

Answer 20

monoecious

Question 21

separate male and female

Answer 21

dioceious

Question 22

shape of platyhelminths

Answer 22

dorsoventrally flattened

Question 23

oral and ventral sucker attaches to host tissue

Answer 23

trematode or fluke

Question 24

scolex (head), proglottids

Answer 24

cestode or tapeworm

Question 25

each segment in the strobila of a tapeworm, containing a complete sexually mature reproductive system

Answer 25

proglottids

Question 26

human is a definitive host for

Answer 26

_Taenia_ _saginata_

Question 27

human is an intermediate host for

Answer 27

_Echinococcus_ _granulosus_

Question 28

- have a complete digestive system - eggs infective for humans

Answer 28

nematodes

Question 29

- second most common orm infection in the US (and probably in the Philippines too) - most common worldwide

Answer 29

Ascariasis

Question 30

causative agent for Ascariasis

Answer 30

_Ascaris_ _lumbricoides_

Question 31

- most common worm infection in US - causes itching around the anus which can lead to difficulty sleeping and restlessness

Answer 31

_Enterobius_ vermicularis_

Question 32

Hookworm examples

Answer 32

1. _Ancylostoma_ __duodenale_ 2. _Necator_ _americanus_

Question 33

caused by eating raw or undercooked meat of

Answer 33

Trichinellosis

Question 34

causative agent for Trichinellosis

Answer 34

_Trichinella_ _spiralis_

Question 35

heartworm

Answer 35

_Dirofilaria_ _immitis_

Question 36

cause human hear failure

Answer 36

heartworm

Question 37

how does heartworm spread

Answer 37

via mosquitoes

Question 38

- exoskeleton - jointed legs - segmented body

Answer 38

Arthropoda

Question 39

Classes of Arthropoda

Answer 39

1. Insecta 2. Arachnida

Question 40

6 legs

Answer 40

Insecta

Question 41

8 legs

Answer 41

Arachnida

Question 42

ex. of insects

Answer 42

- lice - fleas - mosquitoes

Question 43

ex. of arachnids

Answer 43

- mites - ticks

Question 44

arthropods that carry diseases

Answer 44

vectors

Question 45

elimination of vectorborne diseases

Answer 45

contrl or eradication of vectors

Question 46

how are vectors definitive host

Answer 46

microbe's sexual reproduction in vector