Question 1

Which of the following best describes the nutritional adaptations of fungi compared to bacteria?

Accepted Answer

Fungi require less nitrogen than bacteria and grow better at pH 5.

Question 2

A patient presents with a fungal infection localized to the hair shafts. Which type of mycosis is most likely involved?

Accepted Answer

Superficial mycosis

Question 3

Which of the following fungi is used industrially for the production of citric acid?

Accepted Answer

Aspergillus niger

Question 4

Which of the following statements about yeast reproduction is correct?

Accepted Answer

Budding yeasts divide unevenly, producing a smaller bud from the parent cell.

Question 5

Which of the following is a characteristic of Microsporidia?

Accepted Answer

They are obligate intracellular parasites and lack mitochondria.

Question 6

A patient with a compromised immune system develops a fungal infection from a normally harmless fungus. What type of mycosis is this?

Accepted Answer

Opportunistic mycosis

Question 7

Which of the following algae is responsible for producing neurotoxins that cause paralytic shellfish poisoning?

Accepted Answer

Dinoflagellates

Question 8

Which organism caused the Irish potato blight, a significant historical event?

Accepted Answer

Phytophthora infestans

Question 9

Which of the following is NOT a typical role of algae in nature?

Accepted Answer

Causing heartworm in animals

Question 10

Which protozoan structure is used for movement and food intake in ciliates?

Accepted Answer

Cilia

Question 11

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

Accepted Answer

Entamoeba histolytica

Question 12

Which protozoan group is characterized by nonmotile, obligate intracellular parasites with complex life cycles?

Accepted Answer

Apicomplexa

Question 13

Plasmodium, the causative agent of malaria, undergoes schizogony in which organ of the human host?

Accepted Answer

Liver

Question 14

Which helminth structure is used for attachment to the host's intestine?

Accepted Answer

Scolex

Question 15

In the life cycle of Echinococcus granulosus, what is the role of the definitive host?

Accepted Answer

Supports the adult or sexually reproductive form of the parasite

Question 16

Which nematode is known as the pinworm and commonly infects children?

Accepted Answer

Enterobius vermicularis

Question 17

Which of the following equations best represents the process of photosynthesis in algae?

Accepted Answer

$$6\ \mathrm{CO}_2 + 6\ \mathrm{H}_2\mathrm{O} \rightarrow C_6H_{12}O_6$ + 6\ \mathrm{O}_2$$

Question 18

Which arthropod class is characterized by having six legs and is often a vector for pathogenic microorganisms?

Accepted Answer

Insecta

Question 19

A patient presents with a hydatid cyst in the liver. Which helminth is most likely responsible?

Accepted Answer

Echinococcus granulosus

Question 20

Which of the following best describes the life cycle of a monoecious helminth?

Accepted Answer

Egg → larva(e) → adult, with both male and female reproductive systems in one animal

Eukaryotic Microorganisms: Fungi, Algae, Protozoa, and Helminths

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