Deck 12: Characterizing and Classifying Eukaryotes

Question 1

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

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

Answer 1

B

Question 2

Which of the following statements regarding meiosis is MOST accurate?

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

Answer 2

E

Question 3

In the taxonomic system developed by Linnaeus, were classified as Animalia.

A) unicellular algae
B) multicellular fungi
C) single-celled Alveolata
D) both unicellular algae and fungi
E) both unicellular Alveolata and fungi.

Answer 3

C

Question 4

The asexual spores of molds are classified according to their

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

Question 5

Replication of the DNA occurs during

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

Question 6

Eukaryotic sexual reproduction requires the process known as

A) budding.
B) binary fission.
C) mitosis.
D) schizogony.
E) meiosis.

Question 7

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

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

Question 8

Single-celled eukaryotes lacking a cell wall are

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

Question 9

A single-celled eukaryote with two nuclei and cilia are classified as

A) Apicomplexa.
B) Amoebazoa.
C) Diplomonadida.
D) Euglenozoa.
E) Alveolata.

Question 10

Which of the following is a cell type produced during sexual reproduction in fungi?

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

Question 11

Which of the following pairs is MISMATCHED?

A) Paramecium; two nuclei
B) Entamoeba; pseudopodia
C) Euglena; flagellum
D) Toxoplasma; cilia
E) Plasmodium; merozoites

Question 12

Protozoa that have a single large mitochondrion and are found living in animals are

A) amoebae.
B) dinoflagellates.
C) parabasalids.
D) ciliates.
E) kinetoplastids.

Question 13

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

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

Question 14

Asexual reproduction within a hypha produces

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

Question 15

Recombination of genetic material between homologous chromosomes occurs during

A) metaphase I of meiosis.
B) metaphase of mitosis.
C) early prophase I of meiosis.
D) late prophase II of meiosis.
E) prophase of mitosis.

Question 16

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

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

Question 17

An aligned pair of homologous chromosomes is called a

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

Question 18

Sister chromatids separate during of meiosis.

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

Question 19

Which of the following types of protozoa contribute to limestone formation in their fossilized state?

A) diplomonads
B) foraminiferans
C) euglenids
D) ciliates
E) amoebae

Question 20

Which of the following pairs is MISMATCHED?

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

Question 21

Which of the following organisms are directly beneficial to vascular plants?

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

Question 22

In a cell that has a diploid number of 8 chromosomes, how many chromatids will be present at the beginning of mitosis?

A) 32
B) 2
C) 16
D) 4
E) 8

Question 23

Algae containing carotene and laminarin are classified as

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

Question 24

The chromosomes line up in the middle of the cell during

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

Question 25

The filamentous water molds are no longer classified with the true fungi because

A) they produce motile spores with two types of flagella.
B) their cell walls are composed of cellulose.
C) they have cell walls composed of cellulose and motile spores with two flagella.
D) they have cell walls composed of chitin and are never diploid.
E) they are never diploid.

Question 26

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

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

Question 27

Soil is produced from rock by the action of

A) algae.
B) mites.
C) fungi.
D) lichens.
E) radiolarians.

Question 28

A plasmodium is a coenocytic structure associated with

A) amoebae.
B) yeast.
C) green algae.
D) water molds.
E) slime molds.

Question 29

Sac-like chambers at the ends of hyphae that fill with asexual spores are characteristic of

A) Rhizaria.
B) Deutreromycetes.
C) Basidiomycota.
D) Zygomycota.
E) Ascomycota.

Question 30

Which of the following is associated with meiosis but NOT with mitosis?

A) a zygote
B) a chromatid
C) a spindle
D) a centromere
E) a tetrad

Question 31

Multiple mitoses followed by a single cytokinetic event is known as

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

Question 32

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

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

Question 33

Termites are dependent on protozoa of the genus

A) Nosema.
B) Trichomonas.
C) Trichonympha.
D) Naegleria.
E) Pfiesteria.

Question 34

Which of the following is a dinoflagellate whose toxin causes possible estuary -associated syndrome (PEAS)?

A) Gymnodinium
B) Toxoplasma
C) Balantidium
D) Gonyaulax
E) Pfiesteria

Question 35

Which process is represented by this figure?

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

Question 36

A unique feature of cytokinesis in algae is

A) that cytokinesis is delayed until several rounds of mitosis have occurred.
B) the formation of a cleavage furrow.
C) the unequal division of the cytoplasm.
D) the formation of a cell plate between daughter cells.
E) the new cell is pinched off by a ring of cell wall.

Question 37

Single-celled algae that are major producers of oxygen and whose silica cell walls are useful in a variety of products for humans are the

A) diatoms.
B) kelps.
C) ciliates.
D) conidia.
E) cysts.

Question 38

Protozoa that move by means of lobe-like pseudopods and lack shells are classified as

A) Radiolarians.
B) Rhizaria.
C) Foraminifera.
D) Amoebozoa.
E) Euglenozoa.

Question 39

In what way do algae differ from plants?

A) They carry out photosynthesis with pigments other than chlorophyll a.
B) They have cell walls composed of carbohydrate.
C) They carry out anoxygenic photosynthesis.
D) All algae are unicellular.
E) All cells in their sexual reproductive structures become gametes.

Question 40

A material useful in microbiological media is derived from

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

Question 41

Dinoflagellates have cellulose cell walls and are photosynthetic, but they have recently been reclassified as (Apicomplexa/Alveolata/Amoebozoa) on the bases of genetics and cell ultrastructure.

Question 42

Current classification of the algae is based on morphologic characteristics.

Question 43

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

Question 44

Lyme disease is vectored by ticks.)

Question 45

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

Question 46

Haploid genomes contain two sets of chromosomes.)

Question 47

Fungi reproduce only asexually.

Question 48

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

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

Question 49

Protozoa that move and feed by the use of fine threadlike pseudopodia are called (Rhizaria/Amoebozoa/Apicomplexa).

Question 50

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

Question 51

The (Diplomonadida/Parabasala/Rhizaria) are protozoa with a single nucleus and no mitochondria.

Question 52

Mites are responsible for the spread of

A) diseases caused by Apicomplexans.
B) diseases caused by Rickettsias.
C) malaria.
D) helminth diseases.
E) Lyme disease.

Question 53

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

Question 54

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

Question 55

In fungi, aseptate hyphae are coenocytic by definition.

Question 56

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

Question 57

The classification Protozoa is not an accepted taxon because it includes members of multiple kingdoms.

Question 58

The fever and chills associated with malaria are due to the release of uninucleate daughter cells of Plasmodium called (merozoites/schizonts/coencytes).

Question 59

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

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

Question 60

Non-motile members of the Alveolata are

A) the Euglenids.
B) the Apicomplexans.
C) both the Apicomplexans and the Ciliates.
D) the Ciliates.
E) the Dinoflagellates.

Question 61

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

Question 62

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

Question 63

Compare and contrast slime molds and water molds.

Question 64

Describe the ways in which fungi reproduce.

Question 65

Fungi and insects both use the nitrogenous polysaccharide (cellulose/chitin/silica) as a protective molecule in their outer surfaces.

Question 66

Multicellular algae often reproduce sexually by means of haploid and diploid individuals in a process called (separation/alternation) of generations.

Question 67

Lichens spread to new areas by the use of multicellular fragments called (spores/soredia/thalli).

Question 68

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

Question 69

Water molds differ from true fungi in having (diploid/haploid) bodies.

Question 70

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

Question 71

Modified hyphae that allow fungi to derive nutrients from other living organisms are (septate/pseudohyphae/haustoria).

Question 72

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

Question 73

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 74

The reproductive process depicted in the figure is typical of (Ascomycota/Basiomycota/Zygomycota).

Question 75

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