Biology, 8e (Campbell) Chapter 31 Fungi Multiple-Choice Questions 1) Which of the following do all fungi have in common? A) meiosis in basidia B) coenocytic hyphae C) sexual life cycle D) absorption of nutrients E) symbioses with algae Answer: D Topic: Concept 31.1 Skill: Knowledge/Comprehension 2) The hydrolytic digestion of which of the following should produce monomers that are aminated (i.e., have an amine group attached) molecules of beta-glucose? A) insect exoskeleton B) plant cell walls C) fungal cell walls D) A and C only E) A, B and C Answer: D Topic: Concept 31.1 Skill: Knowledge/Comprehension 3) If all fungi in an environment that perform decomposition were to suddenly die, then which group of organisms should benefit most, due to the fact that their fungal competitors have been removed? A) plants B) protists C) prokaryotes D) animals E) mutualistic fungi Answer: C Topic: Concept 31.1 Skill: Application/Analysis 4) When a mycelium infiltrates an unexploited source of dead organic matter, what are most likely to appear within the food source soon thereafter? A) fungal haustoria B) soredia C) fungal enzymes 1
D) increased oxygen levels E) larger bacterial populations Answer: C Topic: Concept 31.1 Skill: Application/Analysis 5) Which of the following is a characteristic of hyphate fungi (fungi featuring hyphae)? A) They acquire their nutrients by phagocytosis. B) Their body plan is a unicellular sphere. C) Their cell walls consist mainly of cellulose microfibrils. D) They are adapted for rapid directional growth to new food sources. E) They reproduce asexually by a process known as budding. Answer: D Topic: Concept 31.1 Skill: Knowledge/Comprehension 6) The functional significance of porous septa in certain fungal hyphae is most similar to that represented by which pair of structures in animal cells and plant cells, respectively? A) desmosomes : tonoplasts B) gap junctions : plasmodesmata C) tight junctions : plastids D) centrioles : plastids E) flagella : central vacuoles Answer: B Topic: Concept 31.1 Skill: Application/Analysis 7) What is the primary role of a mushroom's underground mycelium? A) absorbing nutrients B) anchoring C) sexual reproduction D) asexual reproduction E) protection Answer: A Topic: Concept 31.1 Skill: Knowledge/Comprehension 8) What do fungi and arthropods have in common? A) Both groups are commonly coenocytic. B) The haploid state is dominant in both groups. C) Both groups are predominantly heterotrophs that ingest their food. D) The protective coats of both groups are made of chitin. E) Both groups have cell walls. 2
Answer: D Topic: Concept 31.1 Skill: Knowledge/Comprehension 9) In septate fungi, what structures allow cytoplasmic streaming to distribute needed nutrients, synthesized compounds, and organelles throughout the hyphae?
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