Question 1

Which of the following best describes the primary nutritional mode of fungi?

Accepted Answer

Chemoheterotrophs that decompose organic matter

Question 2

A fungal cell with cross-walls in its hyphae is best described as:

Accepted Answer

Septate hyphae

Question 3

Which of the following statements about fungal cell walls is correct?

Accepted Answer

They are usually composed of chitin

Question 4

Which type of asexual spore is formed by fragmentation of septate hyphae?

Accepted Answer

Arthroconidia

Question 5

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

Accepted Answer

Superficial mycosis

Question 6

Which of the following is a defining feature of Microsporidia?

Accepted Answer

They are obligate intracellular parasites with no observed sexual reproduction

Question 7

Which of the following best describes the process of plasmogamy in fungal sexual reproduction?

Accepted Answer

Penetration of the cytoplasm of a recipient cell by a haploid donor nucleus

Question 8

Which phylum of fungi is characterized by the production of sexual spores in a sac-like structure called an ascus?

Accepted Answer

Ascomycota

Question 9

A gardener develops a chronic ulcer on the hand after a thorn prick. The lesion is diagnosed as sporotrichosis. Which type of mycosis is this?

Accepted Answer

Subcutaneous mycosis

Question 10

Which of the following is NOT a beneficial effect of fungi?

Accepted Answer

Food spoilage

Question 11

Which of the following best explains why fungi are more resistant to osmotic pressure than bacteria?

Accepted Answer

Their cell walls contain chitin, which provides rigidity

Question 12

Which of the following is true regarding the transmission of systemic mycoses such as histoplasmosis?

Accepted Answer

They are acquired by inhalation of spores from the environment

Question 13

Which of the following is a correct match between a fungal disease and its causative agent?

Accepted Answer

Cryptococcosis – Cryptococcus neoformans

Question 14

Which of the following is a distinguishing feature of Basidiomycota?

Accepted Answer

Formation of basidiospores on a pedestal called a basidium

Question 15

A laboratory identifies a fungus with coenocytic hyphae and sporangiospores. Which phylum does it most likely belong to?

Accepted Answer

Mucoromycota

Question 16

Which of the following best describes the difference between budding and fission yeasts?

Accepted Answer

Budding yeasts divide unevenly; fission yeasts divide evenly

Question 17

Which enzyme is produced by fungi that cause cutaneous mycoses, allowing them to infect hair, skin, and nails?

Accepted Answer

Keratinase

Question 18

A patient with AIDS develops oral thrush. Which type of mycosis is this, and what is the most likely causative agent?

Accepted Answer

Opportunistic mycosis; Candida species

Question 19

Which of the following best describes the role of mycorrhizae in plant-fungi interactions?

Accepted Answer

They form symbiotic relationships that help plants absorb water and nutrients

Question 20

Which of the following is a correct sequence of events in fungal sexual reproduction?

Accepted Answer

Plasmogamy → Karyogamy → Meiosis

Fungi: Structure, Reproduction, and Medical Importance

Study Guide - Practice Questions