 |
1 | |
Which of the following is characteristic of protozoa? |
| | A) | polyphyletic |
| | B) | some are autotrophs |
| | C) | some are heterotrophs |
| | D) | all of the above (a-c) |
|
|
2 | |
Reproduction in protozoa involves |
| | A) | binary fission. |
| | B) | asexual reproduction. |
| | C) | sexual reproduction. |
| | D) | all of the above (a-c). |
|
|
3 | |
Asexual reproduction that occurs in protozoa includes all of the following except |
| | A) | budding. |
| | B) | schizogony. |
| | C) | multiple fission. |
| | D) | conjugation. |
|
|
4 | |
The type of symbiotic relationship where both species benefit is termed |
| | A) | parasitism. |
| | B) | commensalism. |
| | C) | mutualism. |
| | D) | symbiosis. |
|
|
5 | |
The specialized region in protozoa that is analogous to a mouth is the |
| | A) | vacuole. |
| | B) | cytopyge. |
| | C) | food vacuole. |
| | D) | cytopharynx. |
|
|
6 | |
The phylum Sarcomastigophora has all of the following characteristics except |
| | A) | unicellar or colonial. |
| | B) | locomotion by flagella, pseudopodia, or both. |
| | C) | autotrophic, saprozoic, or heterotrophic. |
| | D) | apical complex for penetrating host cells. |
|
|
7 | |
Which of the following do not belong to the class Phytomastigophorea? |
| | A) | Gymnodinium |
| | B) | Euglena |
| | C) | Trypanosoma |
| | D) | Volvox |
|
|
8 | |
Sleeping sickness in humans is caused by |
| | A) | trypanosomes. |
| | B) | Amoeba. |
| | C) | euglenoids. |
| | D) | all of the above (a-c). |
|
|
9 | |
Which of the following is not a type of pseudopodium found in the amoebae? |
| | A) | lobopodia |
| | B) | filopodia |
| | C) | reticulopodia |
| | D) | rizopodia |
|
|
10 | |
Which of the following is not a marine protozoan? |
| | A) | foraminiferans |
| | B) | heliozoans |
| | C) | radiolarians |
| | D) | Giardia |
|
|
11 | |
When schizogony produces merozoites, it is called |
| | A) | gametogony. |
| | B) | merogony. |
| | C) | sporogony. |
| | D) | sexual reproduction. |
|
|
12 | |
In the life cycle of Plasmodium, merozoites are formed in the |
| | A) | mosquito gut. |
| | B) | red blood cells. |
| | C) | liver. |
| | D) | spleen. |
|
|
13 | |
The disease pebrine that occurs in silk worms is caused by members of the phylum |
| | A) | Myxozoa. |
| | B) | Acetospora. |
| | C) | Microspora. |
| | D) | Ciliophora. |
|
|
14 | |
Toxoplasmosis is a common disease that often occurs in AIDS patients. |
| | A) | True |
| | B) | False |
|
|
15 | |
In ciliated protozoans, the defensive structures are the trichocysts. |
| | A) | True |
| | B) | False |
|
|
16 | |
Ciliates reproduce sexually by binary fission. |
| | A) | True |
| | B) | False |
|
|
17 | |
Based on ribosomal RNA sequences, the protozoans appear to be a polyphyletic group. |
| | A) | True |
| | B) | False |
|
|
18 | |
Based on 18S ribosomal RNA sequences, the microsporans are closely related to the ciliates. |
| | A) | True |
| | B) | False |
|
|
19 | |
Most ciliates are free living. |
| | A) | True |
| | B) | False |
|
|
20 | |
Ciliates have four kinds of nuclei. |
| | A) | True |
| | B) | False |
|
|
21 | |
Cilia are generally similar to flagella except that they are much longer. |
| | A) | True |
| | B) | False |
|
|
22 | |
The most important species in the phylum Apicomplexa are members of the class Sporozoea (e.g.,
Plasmodium). |
| | A) | True |
| | B) | False |
|
|
23 | |
Giardiasis is contracted by drinking untreated water from streams and lakes, typically in mountainous areas, particularly where there are a great number of hikers and back-packers. |
| | A) | True |
| | B) | False |
|
|
24 | |
Tsetse flies are the intermediate host for the protozoan (Giardia spp.) that causes giardiasis. |
| | A) | True |
| | B) | False |
|
|
25 | |
Volvox is a colonial protozoan. |
| | A) | True |
| | B) | False |
|
2002 McGraw-Hill Higher Education