Question 1

Which fungal phylum is primarily responsible for decomposing wood in forests due to its ability to synthesize lignin peroxidase?

Accepted Answer

Basidiomycota

Question 2

A scientist discovers a fungus with hyphae that lack septa and produces black bread mold. To which phylum does this fungus most likely belong?

Accepted Answer

Zygomycota

Question 3

Which of the following best describes the mutualistic relationship between Glomeromycota and plants?

Accepted Answer

Glomeromycota absorb phosphorus, nitrogen, and water for plants in exchange for sugars.

Question 4

Which fungal group is unique in having motile gametes and flagellated spores?

Accepted Answer

Chytridiomycota

Question 5

A lichen is a symbiotic association between which two types of organisms?

Accepted Answer

A fungus and a cyanobacterium or green alga

Question 6

Which stage in the generalized fungal life cycle is characterized by the presence of two genetically distinct nuclei in the same cell?

Accepted Answer

Heterokaryotic stage

Question 7

What is the primary reproductive structure of Ascomycota called, and what does it contain?

Accepted Answer

Ascus; ascospores

Question 8

Which fungal phylum is most commonly associated with the decline of amphibian populations due to parasitism?

Accepted Answer

Chytridiomycota

Question 9

Which process in the fungal sexual life cycle involves the fusion of cytoplasm from two different individuals without immediate fusion of nuclei?

Accepted Answer

Plasmogamy

Question 10

Which of the following equations correctly represents the ploidy changes during fungal sexual reproduction?

Accepted Answer

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

Question 11

Which fungal group forms arbuscular mycorrhizae and is essential for nutrient uptake in most grassland and tropical forest plants?

Accepted Answer

Glomeromycota

Question 12

Which of the following best describes the role of Basidiomycota in forest ecosystems?

Accepted Answer

They decompose lignin in wood, aiding nutrient cycling.

Question 13

Which of the following is true about the sexual reproduction of Zygomycetes?

Accepted Answer

It produces zygospores after plasmogamy and karyogamy.

Question 14

Which of the following is a distinguishing feature of Chytridiomycota compared to other fungal phyla?

Accepted Answer

Production of motile zoospores

Question 15

A researcher finds a fungus that forms a mutualistic relationship with green algae, creating a structure that colonizes rocks. Which fungal phylum is most likely involved?

Accepted Answer

Ascomycota

Question 16

Which of the following best explains why Glomeromycota are rarely observed to reproduce sexually?

Accepted Answer

Sexual reproduction has not been directly confirmed; they reproduce primarily by asexual spores.

Question 17

Which of the following is a correct statement about the alternation of generations in Chytridiomycota?

Accepted Answer

It is unique among fungi, with both haploid and diploid multicellular stages.

Question 18

Which of the following best describes the function of spores in the fungal life cycle?

Accepted Answer

Spores are reproductive cells that develop into new organisms without fusion with another cell.

Question 19

Which of the following equations correctly represents the process of meiosis in the fungal life cycle?

Accepted Answer

$$2n \rightarrow n$$

Question 20

A fungus infects an insect, manipulates its behavior, and then produces reproductive structures from the insect's body. To which phylum does this fungus most likely belong?

Accepted Answer

Ascomycota

Ch.29 pt2 Fungal Diversity and Life Cycles: Study Notes for General Biology

Guida di studio - Domande di pratica

Study guide - Flashcard