Microbiology Chapter 12: Characterizing and Classifying Eukaryotes

The fusion of two gametes produces a
A) zygote
B) chromatid
C) schizont
D) centromere
E) merozoite

Replication of the DNA occurs during
A) prophase
B) metaphase
C) interphase
D) anaphase
E) telophase

Sister chromatids separate and move toward the poles of the cell during _____ of mitosis.
A) interphase
B) anaphase
C) prophase
D) telophase
E) metaphase

An aligned pair of homologous chromosomes is called a
A) spindle
B) chromatid
C) gamete
D) tetrad
E) coenocyte

Which of the following pairs is mismatched?
A) plants: usually diploid
B) animals: usually diploid
C) fungi: usually diploid
D) protozoa: usually diploid
E) algae: usually haploid

Sister chromatids separate during _____ of meiosis.
A) anaphase II
B) telophase I
C) prophase II
D) metaphase II
E) anaphase I

Which of the following statements regarding meiosis is most accurate?
A) Homologous (non-sister) chromatids separate during anaphase II
B) Meiosis has the same number of stages as mitosis
C) Haploid cells produce diploid cells
D) A diploid cell produces haploid daughter cells
E) Crossing over occurs during metaphase I

Merozoites are a result of
A) meiosis
B) crossing over
C) schizogony
D) mitosis
E) conjugation

Which of the following is mismatched?
A) Entamoeba: pseudopodia
B) Euglena: flagellum
C) Plasmodium: merozoites
D) Paramecium: two nuclei
E) Toxoplasma: cilia

Which of the following is a protozoan stage that allows for transmission of intestinal parasites from one host to another?
A) cyst
B) kinetoplast
C) schizont
D) foraminifera
E) merozoite

Candida albicans invades human tissues by the use of
A) pseudohyphae
B) hyphae
C) thalli
D) mycelia
E) coenocytes

The _____ is the entire interwoven mass of one multicellular fungal organism.
A) pseudoplasmodium
B) mycelium
C) conidiophore
D) sporangium
E) hyphae

Which of the following is classified among the Alveolates?
A) Foraminifera
B) Paramecium and Foraminifera
C) Plasmodium
D) Paramecium
E) Paramecium and Plasmodium

Which of the following types of protozoa are bioluminescent?
A) ciliates
B) amoebae
C) kinetoplastids
D) apicomplexans
E) dinoflagellates

Plankton is composed of which of the following types of eukaryotic microbes?
A) algae
B) protozoa
C) fungi
D) both algae and protozoa
E) both fungi and algae

Conjugation is a reproductive process associated with which of the following types of protozoa?
A) dinoflagellates
B) amoebae
C) ciliates
D) parabasalids
E) kinetoplastids

Which of the following types of protozoa contributes to limestone formation in their fossilized state?
A) foraminiferans
B) diplomonads
C) amoebae
D) euglenozoa
E) ciliates

The asexual spores of molds are classified according to their
A) size
B) mode of development
C) type of metabolism
D) shapes
E) number of chromosomes

Which of the following is a cell type associated with sexual reproduction in fungi?
A) dikaryon
B) mycorrhiza
C) pneumocyst
D) sporangiospore
E) haustoria

The first eukaryote to have its entire genome sequenced was the fungus
A) Cryptococcus
B) Neurospora
C) Candida albicans
D) Saccharomyces
E) Rhizopus

Parasitology is the study of
A) helminths
B) fungi
C) algae
D) protozoa
E) both helminths and protozoa

Which of the following is a dinoflagellate whose toxin causes possible estuary-associated syndrome (PEAS)?
A) Gymnodinium
B) Balatidium
C) Toxoplasma
D) Pfiesteria
E) Gonyaulax

The large seaweed known as kelp is classified as a member of the
A) Chrysophyta
B) Chlorophyta
C) Rhodophyta
D) Phaeophyta
E) Deuteromycete

Hyphae are associated with which of the following?
A) yeasts
B) protozoa
C) molds
D) algae
E) helminths

Most of the fungi that spoil food belong to the division
A) Basidiomycota
B) Rhodophyta
C) Ascomycota
D) Deuteromycetes
E) Zygomycota

Lichens are composed of a symbiosis of fungi and which of the following?
A) cyanobacteria
B) cyanobacteria or green algae
C) green algae
D) euglenoids
E) euglenoids or dinoflagellates

A plasmodium is a coenocytic structure associated with
A) water molds
B) yeast
C) amoebae
D) slime molds
E) green algae

The division of Basidiomycota includes which of the following types of fungi?
A) truffles
B) ringworm
C) bread mold
D) mushrooms
E) baker’s yeast

The roots of vascular plants from associations with fungi called _____, which allow them to absorb water and dissolved minerals from the soil.
A) thalli
B) mycoses
C) mycorrhizae
D) lichens
E) hyphae

Which of the following protozoan genera helps termites digest wood?
A) Trichonympha
B) Naegleria
C) Trichomonas
D) Pfiesteria
E) Nosema

In a cell that has a diploid number of 8 chromosomes, how many chromatids will be present at the beginning of mitosis?
A) 8
B) 4
C) 16
D) 32
E) 2

Which of the following is composed of microtubules?
A) a coenocyte
B) a tetrad
C) a spindle
D) a zygote
E) a chromatid

Which of the following would be virtually indistinguishable under the microscope?
A) late anaphase and early telophase
B) early prophase and early metaphase
C) late metaphase and early telophase
D) early metaphase and early anaphase
E) early anaphase and late anaphase

When mitosis occurs without cytokinesis, which of the following is produced?
A) merozoites
B) cysts
C) coenocytes
D) chromatids
E) macronuclei

_____ is the stage of mitosis in which chromatids move toward opposite poles.
A) interphase
B) telophase
C) metaphase
D) prophase
E) anaphase

The nuclear membrane disintegrates during _____ of mitosis.
A) cytokinesis
B) telophase
C) anaphase
D) metaphase
E) prophase

The chromosomes line up in the middle of the cell during
A) telophase
B) metaphase
C) prophase II
D) anaphase
E) prophase

The process of cytokinesis may occur during
A) prophase
B) metaphase
C) telophase
D) interphase
E) anaphase

During mitotic _____, the spindle forms.
A) metaphase
B) interphase
C) anaphase
D) telophase
E) prophase

Organisms known as diatoms are classified with the
A) protozoa
B) helminths
C) water molds
D) algae
E) fungi

The _____ include organisms classified ad Deuteromycetes.
A) arachnids
B) algae
C) protozoa
D) fungi
E) water molds

Single-celled organisms called ciliates are
A) insects
B) protozoa
C) algae
D) water molds
E) fungi

Ascomycetes are members of the
A) fungi
B) protozoa
C) helminths
D) algae
E) arachnids

The kelps are classified as
A) arachnids
B) fungi
C) algae
D) protozoa
E) water molds

Fungi reproduce only asexually.

Haploid genomes contain two sets of chromosomes

Protozoa are eukaryotic organisms that lack a cell wall and can be unicellular or multicellular.

In fungi, aseptate hyphae are coenocytic by definition.

Diseases of animals caused by fungi are called mycoses.

Myxamoebae act like protozoan amoebae only in the absence of water.