Chapter 12 - Protozoa

Question 1

Classification of Protozoa

Protozoan - “First Animal”

Answer 1

Domain (Eukarya) Kingdom (Protista) Subkingdom (Protozoa)

Question 2

Characteristics of Protozoa

Answer 2

Unicellular, Eukaryotic, Motility, Some parasitic (10-50µm) - Easily seen with compound (light) microscope

Question 3

Protozoa get food from outside their body by feeding on Plants, bacteria and animal debris

Answer 3

Heterotrophic

Question 4

Ciliates take in food by waving their cilia toward a stomach like opening called

Answer 4

Cytostome

Question 5

All protozoa digest food in stomach like compartments called

Answer 5

Vacuoles

Question 6

Motile and feeding stage of Protozoa that require water and food

Answer 6

Trophozoite (vegetative)

Question 7

Protozoa are dormant and resting in what stage. This allows parasites to survive outside a host

Answer 7

Cyst (oocyst)

Question 8

3 Types of Asexual Reproduction of Protozoa

Answer 8

Binary fission / Schizogony (Multiple fission) / Budding

Question 9

Sexual reproduction of Protozoa

Answer 9

Conjugation (genetic exchange)

Question 10

only pathogenic amoeba found in human intestine that causes amoebic dysentery

Answer 10

Entamoeba histolytica

Question 11

Cytoplasmic structures that extend for movement and food

Answer 11

Pseudopods

Question 12

What Protozoa are Characterized by special organelles at apex of their cells

Answer 12

Apicomplexa (Plasmodium)

Question 13

Anopheles mosquito the definitive (Sexual) host of causative agent of malaria

Answer 13

Plasmodium vivax (also P. falciparum)

Question 14

Where does Plasmodium vivax reproduce Asexual

Answer 14

in humans (intermediate host)

Question 15

Apicomplexa Infection transmitted by fecal-oral route and causes gastrointestinal illness with watery diarrhea

Answer 15

Cryptosporidium (disease Cryptosporidiosis)

Question 16

Only Ciliate human parasite

Answer 16

Balantidium coli

Question 17

flagella, photoautotrophs, presence of chloroplasts that allow photosynnthesis, with stigma (Red spot)

Answer 17

Eugleoids (Phylum Euglenozoa)

Question 18

Example of Hemoflagellates (Blood parasites) found in blood of bitten host

Answer 18

Trypanosoma (sleeping sickness & Chagas)