Chapter 5: Microbial Diversity Flashcards

1
Q

photosynthetic, eukaryotic organisms

- can be arranged in colonies or strands

A

algae

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2
Q
(T OR F) all algal cells consist of: 
cytoplasm
cell wall
cell membrane
nucleus
plastids
ribosomes 
mitochondria
Golgi bodies
A

true

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3
Q

most algal cell walls contain ______

A

cellulose

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4
Q

agar is from algae t or f

A

true

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5
Q

very rare cause of human infections (ex. protothecosis)

A

prototheca

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6
Q

most common medically infectious algae

A

phycotoxins

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7
Q

the phycotoxins produced by the dinoflagellates that cause “red tides” can lead to a disease called _______

A

paralytic shellfish poisoning

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8
Q

non-photosynthetic, eukaryotic organisms

- cannot make their own food by photosynthesis (some of them are parasites)

A

protozoa

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9
Q

Protozoa do not have cell walls, but some possess a thickened cell membrane called ______ for protection

A

pellicle

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10
Q

two stages of protozoan life

A

trophozoite

cyst

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11
Q

stage of protozoa that is the motile, feeding, dividing stage
- feeding stage and need nila kumain for them to divide ; di pa sila infective stage but if wala silang cyst, infective stage na nila

A

trophozoite

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12
Q

considered as the infective stage

- nonmotile, dormant, survival stage

A

cyst

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13
Q

move by means of pseudopodia (“false feet”) ex. Entamoeba histolytica

A

amebae

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14
Q

cause of amebic dysentery

A

Entamoeba histolytica

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15
Q

move by means of hair-like cilia ex. Balantidium coli

A

ciliates

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16
Q

cause of balantidiasis

A

Balantidium coli

17
Q

Move by means of whip-like flagella ex. Giardia lamblia

A

flagellates

18
Q

cause of giardiasis

A

Giardia lamblia

19
Q

has no visible means of locomotion

ex. Plasmodium spp.

20
Q

cause of malaria

A

Plasmodium

21
Q

false foot ; cytoplasmic extension for them to move

A

pseudopodia

22
Q

study of fungi

23
Q

fungal infection

24
Q

garbage disposers of nature ; not photosynthetic

25
fungal cell walls contain a polysaccharide called _______
chitin
26
some fungi are unicellular; some are filaments called ____
hyphae
27
bunch of hyphae
mycelium
28
hyphae are divided into cells by septa
septate hyphae
29
does not contain septa therefore, it is not divided by septa
aseptate hyphae
30
two general categories of spores
``` sexual spores (for sexual reproduction) and asexual spores ```