Question 1

Which of the following is NOT one of the six kingdoms of biological classification?

Accepted Answer

Monera

Question 2

A patient presents with a superficial fungal infection on their skin. Which organism is most likely responsible?

Accepted Answer

Candida albicans

Question 3

Which characteristic best distinguishes fungi from protozoa?

Accepted Answer

Fungi are multicellular and have chitin in their cell walls, while protozoa are usually unicellular and lack cell walls.

Question 4

Which of the following protozoa is transmitted via a cyst form in contaminated water and causes gastrointestinal symptoms?

Accepted Answer

Giardia lamblia

Question 5

A dimorphic fungus can exist in which two forms?

Accepted Answer

Yeast and mold

Question 6

Which of the following is a disease caused by a flagellated protozoan and is sexually transmitted?

Accepted Answer

Trichomonas vaginalis

Question 7

Which of the following eukaryotic pathogens is responsible for malaria?

Accepted Answer

Plasmodium falciparum

Question 8

Which of the following statements about fungi is TRUE?

Accepted Answer

Fungi can be unicellular or multicellular and reproduce by forming spores.

Question 9

Which protozoan is known for causing severe diarrhea and was responsible for a major outbreak in Milwaukee in 1994?

Accepted Answer

Cryptosporidium

Question 10

Which of the following is a distinguishing feature of the kingdom Archaea?

Accepted Answer

They have unique membrane lipids and can survive in extreme environments.

Question 11

A patient is diagnosed with amoebic dysentery. Which organism is most likely responsible?

Accepted Answer

Entamoeba histolytica

Question 12

Which of the following is a method of motility used by protozoa?

Accepted Answer

Flagella

Question 13

Which of the following is a correct match between a protozoan and its method of movement?

Accepted Answer

Ciliates move using cilia

Question 14

Which of the following equations correctly represents the exponential growth of a microbial population?

Accepted Answer

$$N = N_0$ 	imes 2^n$$

Question 15

A fungus is observed to have long filamentous structures. What are these structures called?

Accepted Answer

Hyphae

Question 16

Which of the following is a common misconception about protozoa?

Accepted Answer

All protozoa are pathogenic to humans.

Question 17

Which of the following is TRUE regarding the disease caused by Plasmodium falciparum?

Accepted Answer

It is transmitted by the bite of Anopheles mosquitoes.

Question 18

Which of the following is a correct statement about the structure of fungi?

Accepted Answer

Fungi lack chlorophyll and have cell walls made of chitin.

Question 19

Which of the following protozoa is most likely to be found in a patient with a vaginal infection?

Accepted Answer

Trichomonas vaginalis

Question 20

Which of the following is a correct statement about dimorphic fungi?

Accepted Answer

They can exist as yeast at body temperature and as mold at room temperature.

Overview of the Six Kingdoms and Eukaryotic Microbial Groups

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