Deck 12: Characterizing and Classifying Eukaryotes

Question 1

Which of the following is a protozoan with two nuclei and no mitochondria?

A) Plasmodium
B) Paramecium
C) Euglena
D) Giardia
E) Trichomonas

Answer 1

D

Question 2

Crossing over between chromosomes occurs during which stage of meiosis?

A) prophase I
B) prophase II
C) metaphase I
D) anaphase I
E) metaphase II

Answer 2

A

Question 3

Some fungi postpone cytokinesis, producing

A) coenocytes.
B) cysts.
C) merozoites.
D) schizonts.
E) trophozoites.

Answer 3

A

Question 4

Which of the following is a cell type associated with sexual reproduction in fungi?

A) sporangiospore
B) dikaryon
C) haustoria
D) pneumocyst
E) mycorrhiza

Question 5

The Apicomplexa are named for their apical complexes which allow them to

A) be motile by means of multiple flagella.
B) penetrate the cytoplasmic membranes of host cells.
C) undergo schizogony.
D) carry out photosynthesis.
E) attach to surfaces.

Question 6

Merozoites are a result of

A) meiosis.
B) schizogony.
C) mitosis.
D) crossing over.
E) conjugation.

Question 7

The fusion of two gametes produces a

A) zygote.
B) schizont.
C) chromatid.
D) centromere.
E) merozoite.

Question 8

An aligned pair of homologous chromosomes is called a

A) chromatid.
B) spindle.
C) tetrad.
D) coenocyte.
E) gamete.

Question 9

Replication of the DNA occurs during

A) metaphase.
B) prophase.
C) telophase.
D) anaphase.
E) interphase.

Question 10

Single-celled eukaryotes lacking a cell wall are

A) protozoa.
B) fungi.
C) algae.
D) insects.
E) water molds.

Question 11

The ________ have shells composed of calcium carbonate and thin pseudopods.

A) Amebozoa
B) Euglenids
C) Ciliates
D) Dinoflagellates
E) Foraminifera

Question 12

The ________ is the entire interwoven mass of one multicellular fungal organism.

A) hyphae
B) sporangium
C) mycelium
D) pseudoplasmodium
E) conidiophore

Question 13

The asexual spores of molds are classified according to their

A) size.
B) type of metabolism.
C) number of chromosomes.
D) shapes.
E) mode of development.

Question 14

Which of the following statements regarding meiosis is most accurate?

A) Crossing over occurs during metaphase I.
B) A diploid cell produces haploid daughter cells.
C) Haploid cells produce diploid cells.
D) Homologous (non-sister) chromatids separate during anaphase II.
E) Meiosis has the same number of stages as mitosis.

Question 15

Fungal spores produced asexually within a sac-like chamber at the tip of a hypha are called

A) ascospores.
B) basidiospores.
C) sporangiospores.
D) conidia.
E) zygospores.

Question 16

Which of the following has NOT been a basis for classification of the protozoa?

A) means of locomotion
B) genetic sequences
C) photosynthetic ability
D) habitat
E) ability to form a dormant stage

Question 17

A single-celled eukaryote that is both photosynthetic and a chemoheterotroph is a(n)

A) apicomplexan.
B) dinoflagellate.
C) euglenid.
D) ciliate.
E) kinetoplastid.

Question 18

Which of the following pairs is MISMATCHED?

A) Diplomonadida; two nuclei
B) Rhizaria; pseudopodia
C) Parabasala; two mitochondria
D) Euglenids; flagellum
E) Ciliophora; cilia

Question 19

Which of the following pairs is MISMATCHED?

A) animals; usually diploid
B) fungi; usually diploid
C) protozoa; usually diploid
D) slime mold; usually haploid
E) plants; usually diploid

Question 20

Sister chromatids separate and move toward the poles of the cell during ________ of mitosis.

A) telophase
B) anaphase
C) metaphase
D) interphase
E) prophase

Question 21

Hyphae are associated with which of the following?

A) yeasts
B) algae
C) molds
D) protozoa
E) helminths

Question 22

The chromatids move toward opposite poles during ________ of mitosis.

A) anaphase
B) telophase
C) metaphase
D) prophase
E) interphase

Question 23

Which of the following organisms grow on higher plants to produce truffles?

A) euglenids
B) kinetoplastids
C) mycorrhizae
D) lichens
E) water molds

Question 24

The process in which the cytoplasm is divided between daughter cells is known as

A) coenocytosis.
B) budding.
C) meiosis.
D) cytokinesis.
E) nuclear division.

Question 25

Lichens are composed of a symbiosis of fungi and which of the following?

A) green algae
B) cyanobacteria
C) euglenoids
D) cyanobacteria or green algae
E) euglenoids or dinoflagellates

Question 26

Algae that are important sources of thickening agents like agar are known as

A) Rhodophyta.
B) Phaeophyta.
C) Chrysophyta.
D) Rhizobium.
E) Chlorophyta.

Question 27

When mitosis occurs without cytokinesis, which of the following is produced?

A) merozoites
B) chromatids
C) cysts
D) macronuclei
E) coenocytes

Question 28

Which of the following is present during meiosis but not mitosis?

A) a chromatid
B) a centromere
C) a spindle
D) a tetrad
E) sister chromatids

Question 29

The chromosomes line up in the middle of the cell during

A) prophase.
B) anaphase.
C) metaphase.
D) telophase.
E) prophase II.

Question 30

Which of the following fungal divisions lack septa?

A) Basidiomycota
B) Deuteromycetes
C) Zygomycota
D) Ascomycota
E) both Basidiomycota and Deuteromycetes

Question 31

The large seaweed known as kelp is classified as a member of the

A) Chlorophyta.
B) Phaeophyta.
C) Chrysophyta.
D) Rhodophyta.
E) Deuteromycete.

Question 32

Which of the following protozoa genera helps termites digest wood?

A) Trichonympha
B) Nosema
C) Trichomonas
D) Spirogyra
E) Naegleria

Question 33

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) 16
C) 32
D) 4
E) 2

Question 34

The division Basidiomycota includes which of the following types of fungi?

A) truffles
B) mushrooms
C) baker's yeast
D) bread mold
E) ringworm

Question 35

Sexual reproduction in multicellular Ascomycota leads to the production of

A) asci.
B) basidia.
C) conidia.
D) sporangia
E) zygotes.

Question 36

The distinguishing characteristic used to classify the algae into four kingdoms is

A) whether they are single celled or multicellular.
B) their cell wall components.
C) their storage products.
D) their habitat.
E) presence or absence of chlorophyll a.

Question 37

Multiple mitoses followed by a single cytokinetic event is known as

A) meiosis.
B) schizogony.
C) coenocytic division.
D) encystment.
E) interphase.

Question 38

Sexual reproduction in Basidiomycota results in the production of

A) ascospores.
B) basidiospores.
C) conidiospores.
D) endospores.
E) zygospores.

Question 39

Which process is represented by Figure 12.1?

A) mitosis
B) meiosis
C) cytokinesis
D) schizogony
E) budding

Question 40

Slime molds are classified as

A) amoebozoa.
B) dinoflagellates.
C) fungi.
D) lichens.
E) rhizaria.

Question 41

Limestone is made up of the shells of (foraminifera/parabasala/radiolarians).

Question 42

Diatomaceous earth is composed of "skeletons" of the cell walls of protozoa.

Question 43

Algae can have different types of photosynthetic pigments that allow them to photosynthesize at various depths in water.

Question 44

Conidiospores are the products of mitosis.

Question 45

Simple eukaryotes that carry out oxygenic photosynthesis and reproduce by means of alternation of generations are known as

A) algae.
B) fungi.
C) slime molds.
D) euglenids.
E) arachnids.

Question 46

Fungi called Deuteromycetes are not known to reproduce sexually. Nonetheless, most of them are considered members of the ________ on the basis of genetic sequences.

A) Zygomycota
B) Basidiomycota
C) Ascomycota
D) Sporozoa
E) Rhizaria

Question 47

Plasmodium, the cause of malaria, undergoes multiple mitoses before the release of uninucleate daughter cells called (gametocytes/schizonts/coencytes).

Question 48

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

Question 49

Multicellular organisms with hard exoskeletons, segmented bodies and four pairs of jointed legs in the adult stage are

A) algae.
B) arachnids.
C) insects.
D) helminths.
E) lice.

Question 50

Protozoa can survive changes in pH, nutrient availability or temperature as (conidospores /cysts/trophozoites).

Question 51

Lyme disease is vectored by ticks.

Question 52

Fungi reproduce only asexually.

Question 53

Which of the following is transmitted by mosquitoes?

A) African sleeping sickness
B) malaria
C) toxoplasmosis
D) tapeworms
E) typhus

Question 54

Ciliates often have two kinds of nuclei that have different functions.

Question 55

Protozoa that move and feed by the use of broad pseudopods are called (amoebozoa/apicomplexa/rhizaria).

Question 56

The (fungi/algae/lichens) are so sensitive to pollutants that they are used as indicators of environmental conditions.

Question 57

Water molds are currently classified as a type of

A) fungus.
B) protozoan.
C) insect.
D) algae.
E) slime mold.

Question 58

Haploid genomes contain two sets of chromosomes.

Question 59

In fungi, aseptate hyphae are coenocytic by definition.

Question 60

In spite of their name, water molds are not true fungi.

Question 61

Compare and contrast mitosis and meiosis using words, diagrams or both.

Question 62

The asexual reproductive spores produced at the tips of hyphae and not enclosed in a sac are (conidiospores/ascospores/sporangiospores).

Question 63

Microbiologists interested in parasites study multicellular (insects/fungi/worms) as well as single-celled protozoa.

Question 64

A field biologist finds an unfamiliar single-celled organism in a sample from the surface of a marshy area. What observations or tests would make it possible to determine whether it is a protozoan, fungus, or alga? Assume the PCR machine at the field station is not working, but all other equipment is.

Question 65

Slime molds are classified with protozoa in part because they have (flagella/pseudopods/shells).

Question 66

The plague is transmitted by (fleas/lice/ticks/mites).

Question 67

Edible true mushrooms are typically members of the (Ascomycota/Basidiomycota/Deuteromycetes/Zygomycota).

Question 68

True fungi differ from slime molds because they have (cell walls/motility/tubular mitochondria).

Question 69

Describe the ways in which fungi reproduce.

Question 70

Haustoria are a feature of some pathogenic (algae/fungi/protozoa).

Question 71

Compare and contrast slime molds and water molds.

Question 72

Describe the ways in which algae and fungi are useful microbes.

Question 73

Sexual reproduction in unicellular algae is accomplished by the cell acting as a (gamete/spore/zygote).

Question 74

Ticks, lice, and mosquitoes often serve as (carriers/transporters/vectors) by hosting and transmitting pathogenic microbes.

Question 75

Diatoms are single celled marine algae with walls composed of (chiton/cellulose/carbonate/silica).