Microbial Eukaryotes: Fungi and Protists

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Questions and Answers

What compound makes up the cell walls of fungi instead of peptidoglycan or cellulose?

  • Lipids
  • Ergosterols
  • Chitin (correct)
  • Glucan

Which type of fungi are known to cause disease in healthy individuals?

  • Penicillium
  • Saccharomyces cerevisiae
  • Aspergillus (correct)
  • Brewer's yeast

Which of the following forms intertwined filaments known as hyphae?

  • Mushrooms
  • Molds (correct)
  • Protozoans
  • Yeast

What is the economic importance of Ophiostoma ulmi and Fusarium oxysporum?

<p>Cause Dutch Elm disease and affect bananas, respectively (A)</p> Signup and view all the answers

How do aerial hyphae contribute to fungal reproduction?

<p>By producing spores (C)</p> Signup and view all the answers

What fungal species is known to cause corn smut?

<p>Ustilago maydis (C)</p> Signup and view all the answers

Which of the following best describes the primary role of fungi in ecosystems?

<p>Decomposing dead material (B)</p> Signup and view all the answers

What is the symbiotic relationship where fungi associate with photosynthetic microorganisms called?

<p>Lichen (D)</p> Signup and view all the answers

What is a common characteristic of most vascular plants related to fungi?

<p>They have mycorrhizal associations (D)</p> Signup and view all the answers

What is the main factor influencing the direction of growth of hyphae in fungi?

<p>Chemosensory mechanisms (A)</p> Signup and view all the answers

How are protozoa defined based on the provided text?

<p>Not fungi and unicellular eukaryotic heterotrophs (A)</p> Signup and view all the answers

Which type of fungi are unicellular and play a crucial role in fermentation processes?

<p>Yeast (A)</p> Signup and view all the answers

How do molds typically reproduce asexually?

<p>By forming conidia (D)</p> Signup and view all the answers

What is the main difference between conidia and sporangiospores in fungi reproduction?

<p>One is held in conidiophores, the other in a sporangium (D)</p> Signup and view all the answers

In what way do yeasts reproduce?

<p>By budding (C)</p> Signup and view all the answers

What do sexually reproducing fungi use to connect and fuse during reproduction?

<ul> <li>and - hyphae (C)</li> </ul> Signup and view all the answers

Which type of fungi can exist in both asexual and sexual forms?

<p>Molds (A)</p> Signup and view all the answers

What makes conidia and spores resistant to hot, arid conditions in fungi?

<p>Formation from hyphae fragments (D)</p> Signup and view all the answers

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