SPOROZOANS

Question 1

• sexual reproduction with the development of spores, taking place in the mosquito

Answer 1

SPOROGONY

Question 2

• mature sexual cell

Answer 2

GAMETE

Question 3

• the cell resulting from the union of the male and female gametes

Answer 3

ZYGOTE

Question 4

• the motile vermicular zygote

Answer 4

OOKINETE

Question 5

• the form which develops within the sporocyst and infects the salivary
  gland of the mosquito

Answer 5

SPOROZOITE

Question 6

• the asexual multiplication of sporozoa by fission, taking place in the
  vertebrate host

Answer 6

SCHIZOGONY

Question 7

• the vegetative or feeding stage of the parasite which contain one
  nucleus and develops in the RBC

Answer 7

TROPHOZOITE

Question 8

• a stage following the trophozoite stage of the parasite which contain one
  nucleus and develops in the RBC

Answer 8

SCHIZONT

Question 9

• the cell resulting from the final division of a schizont

Answer 9

MEROZOITE

Question 10

GAMETOCYTE- a sexually differentiated but immature cell
a)_____ - immature female cell
b)_____ - immature male cell

Answer 10

Macrogametocyte

Microgametocyte

Question 11

• development of the parasite in the liver cells prior to entry into RBC

Answer 11

PRE-ERYTHROCYTIC CYCLE

Question 12

• the development of the parasite inside RBC

Answer 12

ERYTHROCYTIC CYCLE

Question 13

• stage of development of the parasite which takes place in the liver cells.

In this stage, the malarial parasites do not contain pigments.

Answer 13

• EXO-ERYTHROCYTIC CYCLE

Question 14

(the infected RBC is enlarged)
A. Early trophozoite or ring form

• shape: delicate ring
size: 1/3 of the infected RBC

structures:
a single fine chromatin dot a ring of cytoplasm

Answer 14

Plasmodium vivax

Question 15

Growing trophozoite (developing trophozoite)

shape: irregular or amoeboid

size: large

structures:
a single chromatin dot

cytoplasm is very irregular

may observe fine scattered malarial pigments in the cytoplasm of the parasite

Schuffner’s dots may be seen as stipplings in the cytoplasm of the RBC

Answer 15

Plasmodium vivax

Question 16

Mature trophozoite
• shape: rounded, somewhat ambeboid

• size: the parasite almost fills up the infected RBC

structures:
a single chromatin or nucleus, larger dot and surrounded by vacuole

cytoplasm is rounded, occasionally it may appear arnoeboid with scattered pigments

Schuffner’s dots are present

Answer 16

Plasmodium vivax

Question 17

Young Schizont
• shape: rounded or somewhat amoeboid

size: almost fills up the infected RBC

• structures:
chromatin divides into 2 masses

cytoplasm is rounded or slightly irregular with scattered pigments

Schuffner’s dots present:

Answer 17

Plasmodium vivax

Question 18

Growing Schizont

shape: somewhat amoeboid

size: large, almost fills up the infected RBC

• structures:
chromatin dividing into several irregular masses

cytoplasm is sornewhat amoeboid with scattered pigments

Schuffner’s dots present.

Answer 18

Plasmodium vivax

Question 19

Mature Schizont

shape: segrnented

• size: fills up the infected RBC

structures:
consists of merozoites 12 - 18 in number; a merozoite consists of a single chromatin and cytoplasm

pigrents are aggregated

Schuffner’s dots are present

Answer 19

Plasmodium vivax

Question 20

Microgametocyte
• shape: rounded or oval, compact

• size: may fill up the infected RBC

• structures:
diffuse chromatin, absence of vacuole around the nucleus

cytoplasm is pale blue with abundant scattered coarse pigments

• Schuffner’s dots are numerous

Answer 20

Plasmodium vivax

Question 21

Macrogametocyte

shape: rounded or oval, compact

size: may fill up the infected RBC, usually larger than the microgametocyte

structures:
chromatin is compact, peripheral mass, absence of vacuole around the nucleus

cytoplasm is deep blue with coarse pigments. More pigments are found around the periphery of the cytoplasm of the parasite

Schuffner’s dots are abundant

Answer 21

Plasmodium vivax

Question 22

Early trophozoite or ring form
shape: very delicate ring, multiple infection is common, appliqué forms are frequent

size: 1/5 of the infected RBC

structures:
fine chromatin dots, usually 2 bluish ring of cytoplasm

Answer 22

Plasmodium falciparum

Question 23

Microgametocyte

shape: kidney-shaped with rounded ends

size: larger than the infected RBC

structures:
chromatin is diffused
cytoplasm is pale blue with abundant, scattered pigments

Answer 23

Plasmodium falciparum

Question 24

Macrogametocyte

• shape: crescent-shaped with rounded ends

• size: larger than RBC

structures:
compact chromatin is located near the center

the cytoplasm is dark blue with more compact pigments located near the center

Answer 24

Plasmodium falciparum

Question 25

1. Any Plasmadium with more than one nucleus is a schizont of (3). _______schizonts are found in the visceral blood

Answer 25

P. vivax P. ovale P. malariae P. falciparum

Question 26

Any Plasmcidium with one nucleus, numerous hematin granules and almost fills up the infected RBC is a gametocyte of (3). Gametocytes of P. falciparum are_____-shaped.

Answer 26

P. vivax, P. ovale, and P. malariae kidney

Question 27

Any Plasmodium with one nucleus, with amoeboid cytoplasm and few pigments is a_______

Answer 27

growing trophozoite

Question 28

The ring forms are morphologically characteristic for_____ but species identification cannot be made on this basis. One has to see the different stages of the parasite.

Answer 28

Plasmodia

Question 29

Enlarged infected RBC is seen in ______ infection.

Answer 29

P. vivax

Question 30

Schuffner's dots are seen in_____.

Answer 30

Plasmodium vivax

Question 31

Plasmodium vivax has more than____ chromatin masses in the mature schizont.

Answer 31

12

Question 32

Plasmodia found inside normal sized infected BC with stages older than the ring form is______

Answer 32

Plasmodium malariae

Question 33

Plasmodium with a band for cytoplasm is_____

Answer 33

Plasmodium malaria

Question 34

If all the malarial stages found in the peripheral blood smear is of the ring form, these could be______

Answer 34

Plasmodium falciparum

Question 35

STAGES FOUND IN THE INVERTEBRATE HOST (Mosquito)

Answer 35

Oocyst Sporozoite

Question 36

A. Trophozoite stage shape: large, ovoid, pointed anteriorly and broadly rounded posteriorly size: 50 - 200 miera in length, 40 - 70 miera in width

Answer 36

Balantidium coli

Question 37

Trophozoite entire body is covered with uniform length of short cilia the cytostome, a slightly curved conical depression, is located at the anterior end the cytopyge, a small opening at the posterior end is sometimes seen the cytoplasm contains numerous food vacuoles with one or two contractile vacuoles there are two nuclei, a large bean-shaped macronucleus and a micronucleus, a small rounded structure located at the curvature of the macronucleus

Answer 37

Balantidium coli

Question 38

Cystic Stage shape: rounded size: 45 - 65 micra

Answer 38

Balantidium coli

Question 39

Cyst - thick double walled cyst wall cytoplasm is granula the macronucleus and micronucleus are present

Answer 39

Balantidium coli