Microbiology, 2021

218 5 • Review Questions
Fill in the Blank
15. The plasma membrane of a protist is called the
__________.
16. Animals belong to the same supergroup as the
kingdom __________.
17. Flukes are in class _________.
18. A species of worm in which there are distinct
male and female individuals is described as
_________.
19. Nonseptate hyphae are also called _________.
Short Answer
24. What are kinetoplastids?
25. Aside from a risk of birth defects, what other
effect might a toxoplasmosis infection have?
26. What is the function of the ciliate
macronucleus?
27. What is the best defense against tapeworm
infection?
Critical Thinking
34. The protist shown has which of the following?
A. pseudopodia
B. flagella
C. a shell
D. cilia
20. Unicellular fungi are called _________.
21. Some fungi have proven medically useful
because they can be used to produce
_________.
22. Structures in chloroplasts used to synthesize
and store starch are called ________.
23. Algae with chloroplasts with three or four
membranes are a result of ________ ________.
28. Which genera of fungi are common
dermatophytes (fungi that cause skin
infections)?
29. What is a dikaryotic cell?
30. What is a distinctive feature of diatoms?
31. Why are algae not considered parasitic?
32. Which groups contain the multicellular algae?
33. What are three ways that lichens are
environmentally valuable?
36. What characteristics might make you think a
protist could be pathogenic? Are certain
nutritional characteristics, methods of
locomotion, or morphological differences likely
to be associated with the ability to cause
disease?
37. Given the life cycle of the Schistosoma parasite,
suggest a method of prevention of the disease.
38. Which of the drawings shows septate hyphae?
Figure 5.40
(credit: modification of work by Richard Robinson)
35. Protist taxonomy has changed greatly in recent
years as relationships have been re-examined
using newer approaches. How do newer
approaches differ from older approaches?
39. Explain the benefit of research into the
pathways involved in the synthesis of chitin in
fungi.
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