Deck 12: Characterizing and Classifying Eukaryotes

Question 1

Merozoites are a result of

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

Answer 1

A

Question 2

Which of the following would be virtually indistinguishable under the microscope?

A) early prophase and early metaphase
B) early anaphase and late anaphase
C) late anaphase and early telophase
D) late metaphase and early telophase
E) early metaphase and early anaphase

Answer 2

C

Question 3

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

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

Answer 3

E

Question 4

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

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

Question 5

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

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

Question 6

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

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

Question 7

A plasmodium is a coenocytic structure associated with

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

Question 8

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

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

Question 9

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

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

Question 10

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

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

Question 11

Which of the following protozoa genera helps termites digest wood?

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

Question 12

Replication of the DNA occurs during

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

Question 13

The fusion of two gametes produces a

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

Question 14

Which of the following statements regarding meiosis is most accurate?

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

Question 15

Multiple mitoses followed by a single cytokinetic event is known as

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

Question 16

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

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

Question 17

Parasitology is the study of

A) protozoa.
B) both helminths and protozoa.
C) fungi.
D) helminths.
E) algae.

Question 18

Single- celled eukaryotes lacking a cell wall are

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

Question 19

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

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

Question 20

Which of the following pairs is MISMATCHED?

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

Question 21

Which of the following is classified among the Alveolates?

A) Paramecium
B) foraminifera
C) Paramecium and foraminifera
D) Paramecium and Plasmodium
E) Plasmodium

Question 22

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

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

Question 23

Sister chromatids separate during _ _ of meiosis.

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

Question 24

Hyphae are associated with which of the following?

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

Question 25

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

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

Question 26

An aligned pair of homologous chromosomes is called a

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

Question 27

The chromosomes line up in the middle of the cell during

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

Question 28

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

Question 29

Single- celled organisms called ciliates are

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

Question 30

Which process is represented by this figure?

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

Question 31

Which of the following pairs is MISMATCHED?

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

Question 32

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

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

Question 33

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

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

Question 34

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

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

Question 35

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

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

Question 36

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

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

Question 37

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

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

Question 38

Septate fungi are classified as

A) Basidiomycota.
B) Deuteromycetes.
C) Ascomycota.
D) Rhodophyta.
E) Zygomycota.

Question 39

The chromatids move toward opposite poles during of mitosis.

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

Question 40

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

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

Question 41

Protozoa that move and feed by the use of fine threadlike pseudopodia are called (rhizaria/amoebozoa/apicomplexa).

Question 42

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

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

Question 43

The vegetative stage of a protozoan is called a (cyst/merozoite/trophozoite).

Question 44

Haploid genomes contain two sets of chromosomes.

Question 45

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

Question 46

The asexual spores of molds are classified according to their

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

Question 47

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

Question 48

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

Question 49

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

Question 50

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

Question 51

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

Question 52

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

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

Question 53

The (dinoflagellates/radiolarian) are protozoa that produce cell walls composed of silica.

Question 54

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

Question 55

Which of the following is a protozoan stage that allows for transmission of intestinal parasites from one host to another?

A) foraminifera
B) merozoite
C) schizont
D) cyst
E) kinetoplast

Question 56

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

Question 57

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

Question 58

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

Question 59

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

Question 60

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

Question 61

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

Question 62

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

Question 63

Current classification of the algae is based on morphologic characteristics.

Question 64

In fungi, aseptate hyphae are coenocytic by definition.

Question 65

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 66

Fungi reproduce only asexually.

Question 67

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

Question 68

Compare and contrast slime molds and water molds.

Question 69

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

Question 70

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

Question 71

Lyme disease is vectored by ticks.

Question 72

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

Question 73

Describe the ways in which fungi reproduce.

Question 74

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