IAG_24.docx!!!!!!!!!!!!!!!! IAG_24.docx IAG_24.docx
OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 5: Biological Diversity
Chapter 24: Fungi
Visual Connection Questions
1. Which of the following statements is true?
a. A dikaryotic ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to
form eight ascospores.
2. Which of the following statements is true?
D. A basidiocarp is the fruiting body of a mushroom-producing fungus.
IAG_24.docx 4/20/2026, 2:15:29 PM IAG_24.docx
, IAG_24.docx!!!!!!!!!!!!!!!! IAG_24.docx IAG_24.docx
OpenStax Biology 2e Instructor Answer Guide
3. If symbiotic fungi are absent from the soil, what impact do you think this would have on plant
growth?
Without mycorrhiza, plants cannot absorb adequate nutrients, which stunts their growth.
Addition of fungal spores to sterile soil can alleviate this problem.
Review Questions
4. Which polysaccharide is usually found in the cell wall of fungi?
c. chitin
5. Which of these organelles is not found in a fungal cell?
a. chloroplast
6. The wall dividing individual cells in a fungal filament is called a
d. septum
7. During sexual reproduction, a homothallic mycelium contains
c. both mating types
8. The life cycles of perfect fungi are most similar to which other organism?
c. Haploid-dominant green algae
9. The most primitive phylum of fungi is the ________.
a. Chytridiomycota
10. Members of which phylum produce a club shaped structure that contains spores?
b. Basidiomycota
11. Members of which phylum establish a successful symbiotic relationship with the roots of
trees?
d. Glomeromycota
IAG_24.docx 4/20/2026, 2:15:29 PM IAG_24.docx
OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 5: Biological Diversity
Chapter 24: Fungi
Visual Connection Questions
1. Which of the following statements is true?
a. A dikaryotic ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to
form eight ascospores.
2. Which of the following statements is true?
D. A basidiocarp is the fruiting body of a mushroom-producing fungus.
IAG_24.docx 4/20/2026, 2:15:29 PM IAG_24.docx
, IAG_24.docx!!!!!!!!!!!!!!!! IAG_24.docx IAG_24.docx
OpenStax Biology 2e Instructor Answer Guide
3. If symbiotic fungi are absent from the soil, what impact do you think this would have on plant
growth?
Without mycorrhiza, plants cannot absorb adequate nutrients, which stunts their growth.
Addition of fungal spores to sterile soil can alleviate this problem.
Review Questions
4. Which polysaccharide is usually found in the cell wall of fungi?
c. chitin
5. Which of these organelles is not found in a fungal cell?
a. chloroplast
6. The wall dividing individual cells in a fungal filament is called a
d. septum
7. During sexual reproduction, a homothallic mycelium contains
c. both mating types
8. The life cycles of perfect fungi are most similar to which other organism?
c. Haploid-dominant green algae
9. The most primitive phylum of fungi is the ________.
a. Chytridiomycota
10. Members of which phylum produce a club shaped structure that contains spores?
b. Basidiomycota
11. Members of which phylum establish a successful symbiotic relationship with the roots of
trees?
d. Glomeromycota
IAG_24.docx 4/20/2026, 2:15:29 PM IAG_24.docx
