Chapter 11: Eukaryotic Microbes and Invertebrate Infectious Agents
MULTIPLE CHOICE
1. The cell shown is best described as a
a. gamete. c. diploid cell.
b. prokaryote. d. haploid cell.
ANS: C DIF: Easy REF: 11.1
OBJ: 11.1a Explain the processes of asexual (vegetative) reproduction and sexual reproduction.
MSC: Applying
2. Which of the following occurs during gamete formation but NOT during asexual reproduction?
a. replication of all chromosomes
b. paired chromosomes condensing into short rods
c. separation of pairs of homologs
d. formation of nuclear membranes around groups of chromosomes
ANS: C DIF: Moderate REF: 11.1
OBJ: 11.1a Explain the processes of asexual (vegetative) reproduction and sexual reproduction.
MSC: Applying
3. When comparing sexual reproduction to asexual reproduction, which of the following is an advantage
of sexual reproduction?
a. Sexual reproduction generates fewer diverse cell surface proteins and is less likely to
activate an immune response.
b. Sexual reproduction requires fewer resources that may be useful when nutrients are
depleted.
c. Sexual reproduction produces haploid vegetative cells, which are smaller than diploid
vegetative cells.
d. Sexual reproduction increases genetic diversity, which may be useful in a changing
environment.
, ANS: D DIF: Moderate REF: 11.1
OBJ: 11.1a Explain the processes of asexual (vegetative) reproduction and sexual reproduction.
MSC: Analyzing
4. The group of organisms that includes ciliates, dinoflagellates, and apicomplexans is known as
a. fungi. c. trypanosomes.
b. amebas. d. alveolates.
ANS: D DIF: Easy REF: 11.1
OBJ: 11.1b Distinguish the key traits of fungi, algae, amebas, alveolates, and trypanosomes.
MSC: Remembering
5. A major group of microbial eukaryotes that contains chloroplasts related to those of plants and is found
as a single cell or sheet is
a. fungi. c. alveolates.
b. algae. d. trypanosomes.
ANS: B DIF: Easy REF: 11.1
OBJ: 11.1b Distinguish the key traits of fungi, algae, amebas, alveolates, and trypanosomes.
MSC: Applying
6. The parasite that causes malaria has a complex life cycle involving both a definitive and an
intermediate host. This parasitic protist also contains an elaborate cortex. This parasite is best
categorized as a(n)
a. fungus. c. alveolate.
b. trypanosome. d. alga.
ANS: C DIF: Easy REF: 11.1
OBJ: 11.1b Distinguish the key traits of fungi, algae, amebas, alveolates, and trypanosomes.
MSC: Applying
7. Which of the following would be considered invertebrate parasites?
a. helminths c. metamonads
b. amebas d. algae
ANS: A DIF: Moderate REF: 11.1
OBJ: 11.1c Distinguish between microbial and invertebrate parasites.
MSC: Understanding
8. Which of the following would be considered “true” microbes?
a. nematode c. trematodes
b. cestodes d. fungi
ANS: D DIF: Moderate REF: 11.1
OBJ: 11.1c Distinguish between microbial and invertebrate parasites.
MSC: Understanding
9. When comparing invertebrate parasites to “true” microbes, which of the following is found in
invertebrate parasites only?
a. fully differentiated organ systems c. macroscopic forms
, b. cells with mitochondria d. cells with nuclei
ANS: A DIF: Moderate REF: 11.1
OBJ: 11.1c Distinguish between microbial and invertebrate parasites.
MSC: Applying
10. The fungal structure shown is best described as a
a. hyphapseudopod. c. mushroom.
b. mycelium. d. fruiting body.
ANS: B DIF: Easy REF: 11.2
OBJ: 11.2a Describe the structure of the fungal mycelium. MSC: Applying
11. One drug target for antifungals is the membrane lipid
a. chitin. c. triazole.
b. hyphae. d. ergosterol.
ANS: D DIF: Moderate REF: 11.2
OBJ: 11.2a Describe the structure of the fungal mycelium. MSC: Remembering
12. How do filamentous fungi grow in length?
a. Their hyphae undergo mitosis without cell division.
b. Their hyphae undergo meiosis to produce new cells.
c. They produce asci by mitosis without cell division.
d. They produce asci by meiosis without cell division.
ANS: A DIF: Moderate REF: 11.2
OBJ: 11.2a Describe the structure of the fungal mycelium. MSC: Applying
13. Fungal filaments associated with the root systems of trees that expand the trees’ access to water and
nutrients are known as
a. mycorrhizae. c. chitin.
b. molds. d. saprophytes.
ANS: A DIF: Easy REF: 11.2
OBJ: 11.2b Explain how fungi impact the environment. MSC: Understanding
14. The ability of fungi to digest lignin is important in the
MULTIPLE CHOICE
1. The cell shown is best described as a
a. gamete. c. diploid cell.
b. prokaryote. d. haploid cell.
ANS: C DIF: Easy REF: 11.1
OBJ: 11.1a Explain the processes of asexual (vegetative) reproduction and sexual reproduction.
MSC: Applying
2. Which of the following occurs during gamete formation but NOT during asexual reproduction?
a. replication of all chromosomes
b. paired chromosomes condensing into short rods
c. separation of pairs of homologs
d. formation of nuclear membranes around groups of chromosomes
ANS: C DIF: Moderate REF: 11.1
OBJ: 11.1a Explain the processes of asexual (vegetative) reproduction and sexual reproduction.
MSC: Applying
3. When comparing sexual reproduction to asexual reproduction, which of the following is an advantage
of sexual reproduction?
a. Sexual reproduction generates fewer diverse cell surface proteins and is less likely to
activate an immune response.
b. Sexual reproduction requires fewer resources that may be useful when nutrients are
depleted.
c. Sexual reproduction produces haploid vegetative cells, which are smaller than diploid
vegetative cells.
d. Sexual reproduction increases genetic diversity, which may be useful in a changing
environment.
, ANS: D DIF: Moderate REF: 11.1
OBJ: 11.1a Explain the processes of asexual (vegetative) reproduction and sexual reproduction.
MSC: Analyzing
4. The group of organisms that includes ciliates, dinoflagellates, and apicomplexans is known as
a. fungi. c. trypanosomes.
b. amebas. d. alveolates.
ANS: D DIF: Easy REF: 11.1
OBJ: 11.1b Distinguish the key traits of fungi, algae, amebas, alveolates, and trypanosomes.
MSC: Remembering
5. A major group of microbial eukaryotes that contains chloroplasts related to those of plants and is found
as a single cell or sheet is
a. fungi. c. alveolates.
b. algae. d. trypanosomes.
ANS: B DIF: Easy REF: 11.1
OBJ: 11.1b Distinguish the key traits of fungi, algae, amebas, alveolates, and trypanosomes.
MSC: Applying
6. The parasite that causes malaria has a complex life cycle involving both a definitive and an
intermediate host. This parasitic protist also contains an elaborate cortex. This parasite is best
categorized as a(n)
a. fungus. c. alveolate.
b. trypanosome. d. alga.
ANS: C DIF: Easy REF: 11.1
OBJ: 11.1b Distinguish the key traits of fungi, algae, amebas, alveolates, and trypanosomes.
MSC: Applying
7. Which of the following would be considered invertebrate parasites?
a. helminths c. metamonads
b. amebas d. algae
ANS: A DIF: Moderate REF: 11.1
OBJ: 11.1c Distinguish between microbial and invertebrate parasites.
MSC: Understanding
8. Which of the following would be considered “true” microbes?
a. nematode c. trematodes
b. cestodes d. fungi
ANS: D DIF: Moderate REF: 11.1
OBJ: 11.1c Distinguish between microbial and invertebrate parasites.
MSC: Understanding
9. When comparing invertebrate parasites to “true” microbes, which of the following is found in
invertebrate parasites only?
a. fully differentiated organ systems c. macroscopic forms
, b. cells with mitochondria d. cells with nuclei
ANS: A DIF: Moderate REF: 11.1
OBJ: 11.1c Distinguish between microbial and invertebrate parasites.
MSC: Applying
10. The fungal structure shown is best described as a
a. hyphapseudopod. c. mushroom.
b. mycelium. d. fruiting body.
ANS: B DIF: Easy REF: 11.2
OBJ: 11.2a Describe the structure of the fungal mycelium. MSC: Applying
11. One drug target for antifungals is the membrane lipid
a. chitin. c. triazole.
b. hyphae. d. ergosterol.
ANS: D DIF: Moderate REF: 11.2
OBJ: 11.2a Describe the structure of the fungal mycelium. MSC: Remembering
12. How do filamentous fungi grow in length?
a. Their hyphae undergo mitosis without cell division.
b. Their hyphae undergo meiosis to produce new cells.
c. They produce asci by mitosis without cell division.
d. They produce asci by meiosis without cell division.
ANS: A DIF: Moderate REF: 11.2
OBJ: 11.2a Describe the structure of the fungal mycelium. MSC: Applying
13. Fungal filaments associated with the root systems of trees that expand the trees’ access to water and
nutrients are known as
a. mycorrhizae. c. chitin.
b. molds. d. saprophytes.
ANS: A DIF: Easy REF: 11.2
OBJ: 11.2b Explain how fungi impact the environment. MSC: Understanding
14. The ability of fungi to digest lignin is important in the
