Lesson 5a: Protozoan Groups

Question 1

_____________ are a diverse assemblage with mixed affinities.

Answer 1

Protozoa

Question 2

Characteristics of Protozoa

Answer 2

• They lack a cell wall
• They have atleast one motile stage in the life cycle
• Most ingest their food.

Question 3

Give 5 Biological Contributions of Protozoa

(Pili ko yung pinaka kunti)

Answer 3

1. Asexual reproduction occurs by mitotic division.
2. Some have true sexual reproduction with zygote formation.
3. Shelled protozoa have the simplest exoskeletons.
4. Many have developed means of locomotion.
5. Basic enzymes support all types of nutrition: autotrophic, saprozoic, and halozoic.

Question 4

Give me 5 General Features of Protozoa

Answer 4

1. They do not form a monophyletic group.
2. Protozoa has only one non-reproductive cell type.
3. They lack embryonic development.
4. Protozoan cell organelles are highly specialized.
5. They are unicellular organisms.

Question 5

Characteristics of Protozoan Phyla

Answer 5

1. They are unicellular with some colonial and multicellular stages.
2. Most are microscopic.
3. No germ layers are present.
4. No organs or tissues are formed.
5. All types of nutrition are present.

Question 6

The classification of Protozoa follows the _____________ and _____________

Answer 6

Hausmann and Hulsmann (1996)

Question 7

Phylum Apicomplexa aka. _____________

Answer 7

Sporozoa

Question 8

Phylum Mastigophora aka _____________

Answer 8

Flagellata Dinoflagelleta

Question 9

Members of Axostylata have a stiffening tod composed of microtubles, the _____________

Answer 9

Axostyle

Question 10

Members of Class Parabasalea have a _____________, which is _____________ connected by a fiber to one of the kinetosomes.

Answer 10

parabasal body
Golgi apparatus

Question 11

Although mitochondria are absent, members of Order ________ posses _____________

Answer 11

Trichomonadida
hydrogeneosomes

Question 12

Infects the urogenital tract of humans and is sexually transmitted

Answer 12

Trichomonas vaginalis

Question 13

Phylum Sarcomastigophora includes two subgroups of protozoa that move by either __________ or __________

Answer 13

pseudopodia
flagella

Question 14

The Flagellated Protozoa

Answer 14

Subphylum Mastigophora

Question 15

2 Class of Subphylum Mastigophora

Answer 15

Class Phytomastiophorea (with clorophyll)

Class Zoomastigophorea (without clorophyll)

Question 16

Phylum Sarcodina, the __________ and relatives.

Answer 16

amoeba

Question 17

Zooflagellates lack __________ and have ________ or ________ nutrition; most are symbiotic

Answer 17

chromoplasts
holozoic or saprozoic nutrition

Question 18

An important genus of protozoan parasite; some are not pathogenic.

Answer 18

Trypanosoma

Question 19

Causes African sleeping sickness in humans.

Answer 19

Trypanosoma brucei gambiense and T.b. rhodesiense

Question 20

Causes sleeping sickness in domestic animals.

Answer 20

T. brucei brucei

Question 21

Trypanosomas are transmitted by:

Answer 21

tsetse flies

Question 22

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