Question 1

Which of the following best describes the primary function of the fungal cell wall?

Accepted Answer

To provide structural support and protect against environmental stress

Question 2

A student observes a fungus that can switch between yeast and filamentous forms depending on environmental conditions. What is this phenomenon called?

Accepted Answer

Dimorphism

Question 3

Which structure is responsible for the absorption of nutrients in parasitic fungi?

Accepted Answer

Haustorium

Question 4

Which of the following statements about fungal spores is correct?

Accepted Answer

They serve as a means of dispersal and survival under adverse conditions.

Question 5

Which phylum of fungi is characterized by the presence of clamp connections and basidia?

Accepted Answer

Basidiomycota

Question 6

A researcher is studying a fungus that forms arbuscular mycorrhizae with plant roots. To which phylum does this fungus most likely belong?

Accepted Answer

Glomeromycota

Question 7

Which of the following best explains the role of the Spitzenkörper in fungal growth?

Accepted Answer

It organizes the delivery of vesicles to the hyphal tip, facilitating cell wall extension.

Question 8

Which of the following is a distinguishing feature of Oomycota compared to true fungi?

Accepted Answer

Production of zoospores with two flagella

Question 9

A fungal pathogen infects a plant, but the plant shows no symptoms and continues to grow normally. This is an example of:

Accepted Answer

Tolerance

Question 10

Which of the following best describes the gene-for-gene hypothesis in plant pathology?

Accepted Answer

For each resistance gene in the host, there is a corresponding avirulence gene in the pathogen.

Question 11

Which of the following is a correct sequence of steps for applying Koch’s postulates to prove a fungus causes disease?

Accepted Answer

Isolate the fungus from a diseased plant, inoculate a healthy plant, observe symptoms, re-isolate the fungus.

Question 12

Which of the following best describes the action of azole antifungal drugs?

Accepted Answer

They inhibit ergosterol synthesis by blocking lanosterol 14α-demethylase.

Question 13

Which of the following is a reason why fungi are often used as model organisms in genetics?

Accepted Answer

They have short generation times and are easy to manipulate genetically.

Question 14

Which of the following best describes the principle of CRISPR-Cas gene editing?

Accepted Answer

It introduces targeted double-strand breaks in DNA, allowing for gene modification.

Question 15

Which of the following is a major limitation of using entomopathogenic fungi as biopesticides?

Accepted Answer

Their effectiveness can be reduced by environmental factors such as UV light and humidity.

Question 16

Which of the following best explains why zearalenone is considered a nonsteroidal estrogenic mycotoxin?

Accepted Answer

It mimics estrogenic activity without having a steroid structure.

Question 17

Which of the following is a correct comparison between ectomycorrhizae and endomycorrhizae?

Accepted Answer

Endomycorrhizae form arbuscules inside root cells, while ectomycorrhizae form a sheath around the root.

Question 18

Which of the following best describes the role of fungi in mycoremediation?

Accepted Answer

Fungi degrade environmental pollutants through enzymatic activity.

Question 19

Which of the following is a plausible reason why LC-MS/MS is used to test for mycotoxins in grains?

Accepted Answer

It allows for sensitive and specific detection of multiple mycotoxins simultaneously.

MBY 261 Mycology: Study Guide and Semester Structure

Study Guide - Practice Questions

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