Intestinal and tissue coccidians

Question 1

Who classified the organisms based on the structure of cells, evolutionary relationships, means of nourishment, & reproductive process?

Answer 1

Robert Harding Whittaker

Question 2

aid in the penetration of the host cell by releasing enzymes

Answer 2

Rhoptries

Question 3

Aid Rhoptries in the penetration of the cell

Answer 3

Micronemes

Question 4

Cryptosporidium does not have which structure present in Apicomplexa?

Answer 4

Apicoplast

Question 5

Three sequential stages of Apicomplexa life cycle

Answer 5

• Sexual cycle or sporogony
• Asexual cycle or schizogony (merogony)
• Gametogony

Question 6

With the aid of the enzymes secreted from the organelles in the apical complex (rhoptries & micronemes), the parasite induces the formation of a _____

Answer 6

parasitophorous vacuole

Question 7

Microgamete and macrogamete forms a ____

Answer 7

zygote

Question 8

Merogony occurs ___ of the cell while sporogony occurs ____ of host

Answer 8

Inside of cell
Outside of host

Question 9

Cryptosporidiosis is manifested by _____

Answer 9

Devastating diarrhea

Question 10

Cryptosporidium occupies the brush borders of _____

Answer 10

Intestinal epithelia

Question 11

Thin-walled oocyst caused ____

Answer 11

Autoinfection (tip: think sha kasi di na need magsurvive outside)

Question 12

Cryptosporidum oocyst contains _____ sporozoites

Answer 12

4

Question 13

Cryptospordium oocyst will stain ____ in Acid-fast staining

Answer 13

Red

Question 14

TRUE OR FALSE: Halofuginone is treatment for humans infected with cryptosporidium

Answer 14

FALSE, for animals

Question 15

Only known species of the genus cyclospora that can infect humans

Answer 15

C. cayetanensis (Cayetano)

Question 16

Cyclospora was identified by ______

Answer 16

Ortega and collaborators

Question 17

Cyclospora infects epithelial cells of ______

Answer 17

duodenum and jejunum

Question 18

Type 1 Meront of cyclospora reproduces _____

Answer 18

Asexually

Question 19

Type 2 Meront of Cyclospora develops into _____

Answer 19

Microgametes and macrogametes

Question 20

Which of the following oocysts are infectious after release into the environment?

A. Cyclospora
B. Cryptosporidium

Answer 20

B. Cryptosporidum

Question 21

How many sporozoites do Cyclospora oocyst have?

Answer 21

4 (2 sporozoites per sporocyst)

Question 22

Cyclospora causes outbreaks in _____

Answer 22

Industrialized nations

Question 23

Apicomplexan associated with prepackaged vegetable trays

Answer 23

Cyclospora

Question 24

Drug of choice for cyclospora

Answer 24

TMP-SMX

Question 25

Cytoisospora is similar to which apicomplexan?

Answer 25

Cyclospora

Question 26

Which species of cytoisospora infects humans?

Answer 26

C. belli

Question 27

could possibly be responsible for the reactivation of zoites, causing the currents of clinical disease both in immunocompetent immunocompromised individuals

Answer 27

Monoxoic tissue cyst

Question 28

Cytoisospora oocyst have _____ sporozoites?

Answer 28

8

Question 29

Which country reported more C. belli infections than other countries?

Answer 29

India

Question 30

excellent method for detecting the oocyst of C. belli

Answer 30

Sheather Sugar Flotation method

Question 31

The specific epithet Toxoplasma gondii was derived from the ____ where it was first isolated.

Answer 31

rodent species

Question 32

Toxoplasma resembles ____ in having 2 sporocysts, each having 4 sporozoites

Answer 32

C. belli

Question 33

Definite host of Toxoplasmosis

Answer 33

Domestic cats and other felines

Question 34

Form of taxoplasmosis cells which has rapid multiplaction

Answer 34

Tachyzoites

Question 35

Tachyzoites move by ______

Answer 35

gliding, flexing, undulating, and rotating

Question 36

This toxoplasma cell for has slow multiplication and is typically located in muscle cells and neurons

Answer 36

Bradyzoites