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Flashcards in Protozoa Deck (22):
1

characteristics of protozoa

unicellular
eukaryotic organisms
microscopic in size
a single cell may contain more than one nucleus

2

how are protozoa classified?

mode of locomotion

3

what are the locomotion organelles

flagella
cilia
pseudopodia= "false feet"fun
or none

4

what is the functional unit of protozoanontogeny (development) for protozoa

zoite

5

sporozoite

infective form

6

trophozoites

form which feeds and grows

7

merizoites

result of mergony that results within a host cell

8

tachyzoites

form which divides rapidly

9

bradyzoites

form which divides slowly

10

what kind of reproduction do protozoa have?

sexual and asexual (fission)

11

what are the two kinds of asexual reproduction

binary fission
multiple fission

12

what is binary fission?

one individual parent divides into two daughter cells

13

what is multiple fission

the nucleus and other organelles divide repeated leading to a large number of daughter cells

14

what is sexual reproduction

haploidy cells resulting from meiosis. followed by union of two cells

15

oocysts go through a process called ____ to become _____

sporulation, sporulated oocyst

16

what is the resting stage of the protozoa?

cyst

17

why does an oocyst become a cyst?

adverse environmental conditions- ex. food deficiency, dessication

18

excystation

a return of favorable conditions and release of cyst

19

how do the parasites of phylum Sarcomastigophora move?

pseudopodia and/ or flagella

20

how do the parasites of phylum ciliophora move?

cilia

21

how do the parasites of phylum Apicomplexa move

gliding- no locomotion agent

22

how many cells are in each oocyst?

one