Question 1

Which of the following is a defining characteristic of fungi that distinguishes them from plants?

Accepted Answer

Fungi have a cell wall composed of chitin and lack chlorophyll.

Question 2

A patient presents with a lung infection after inhaling spores from a dimorphic fungus. Which statement best describes the behavior of dimorphic fungi in this scenario?

Accepted Answer

Dimorphic fungi present as molds in their natural environment and as yeasts in human tissues.

Question 3

Which of the following equations correctly represents the process of meiosis during sexual reproduction in fungi?

Accepted Answer

$$2n \rightarrow n$$

Question 4

Which group of eukaryotic microorganisms is defined by being unicellular, lacking a cell wall, and often motile due to cilia, flagella, or pseudopodia?

Accepted Answer

Protozoans

Question 5

Why are most fungi able to grow in environments with high salt or sugar concentrations, unlike most bacteria?

Accepted Answer

Fungi are resistant to osmotic pressure.

Question 6

Which of the following best describes the asexual reproduction of filamentous fungi?

Accepted Answer

Fragmentation of hyphae and formation of spores.

Question 7

A shellfish poisoning outbreak is traced to a red tide. Why is cooking ineffective in preventing this type of food poisoning?

Accepted Answer

The toxins produced by red tide algae are heat-resistant and not destroyed by cooking.

Question 8

Which of the following is a medically important characteristic of yeast?

Accepted Answer

Yeasts reproduce by budding and may form multicellular structures.

Question 9

Which equation represents the alternation between haploid and diploid stages in fungal sexual reproduction?

Accepted Answer

$$n + n \rightarrow 2n \rightarrow n$$

Question 10

Which of the following is NOT a defining characteristic of protozoans?

Accepted Answer

Contain a cell wall

Question 11

Which of the following best describes the life cycle of parasitic helminths?

Accepted Answer

Egg, larva, adult

Question 12

Which of the following statements about algae is correct?

Accepted Answer

Algae are photosynthetic and rarely infectious.

Question 13

Which of the following is a major difficulty in classifying algae?

Accepted Answer

Algae have diverse forms and are not always closely related genetically.

Question 14

Which of the following is a characteristic of cellular slime molds?

Accepted Answer

They spend most of their life as single cells feeding on fungi and bacteria.

Question 15

Which of the following best describes the reproductive system of parasitic helminths?

Accepted Answer

Parasitic helminths have dominant reproductive systems, as many other functions are managed by the host.

Question 16

Which of the following is true about the life cycle of tapeworms (cestodes)?

Accepted Answer

Tapeworms grow from the head (scolex) and mature proglottids are released in feces.

Question 17

Which of the following is a common characteristic of nematodes (roundworms)?

Accepted Answer

Nematodes are cylindrical and tapered at each end.

Question 18

Which of the following best describes the process of schizogony in protozoans?

Accepted Answer

Schizogony is a form of asexual reproduction involving multiple fission.

Question 19

Which of the following equations represents the fusion of haploid cells (+, -) to form a dikaryon in fungal sexual reproduction?

Accepted Answer

$$n + n \rightarrow n + n$$

Question 20

Which of the following is a defining characteristic of slime molds that distinguishes them from fungi?

Accepted Answer

Slime molds are more closely related to amoebas than fungi.

Chapter 6

Study Guide - Practice Questions

Study Guide - Flashcards