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Micro Bio Chp 12 Exam 2

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Microbiology kingwood tx

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1

The fusion of two gametes produces a

zygote

2

Replication of the DNA occurs during

inerphase

3

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

anaphase

4

An aligned pair of homologous chromosomes is called a

tetrad

5

Which of the following pairs is Mismatched?

fungi; usually diploid

6

Sister chromatids separate during _____ of meiosis.

anaphase II

7

Which of the following statements regarding meiosis is most accurate?

a diploid cell produces haploid daughter cells

8

Merozpoites are a result of

schizogony

9

Which of the following pairs is Mismatched

Plasmodium; merozoites

10

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

cyst

11

Single-celled eukaryotes lacking a cell wall are

protozoa

12

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

mycelium

13

Which of the following is classified among the Alveolates?

paramecium and plasmodium

14

A single celled eukaryote that is both photosynthetic and a chemoheterotroph is an

euglenid

15

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

Giardia

16

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

kinetoplastids

17

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

foraminiferans

18

The asexual spores of molds are classified according to their

mode of development

19

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

dikaryon

20

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

sporangiospores

21

Parasitology is the study of

both helminths and protozoa

22

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

Pfiesteria

23

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

phaeophyta

24

Hyphae are associated with which of the following?

molds

25

Septate fungi are classified as

zygomycota

26

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

cyanobacteria or green algae

27

A plasmodium is a coenocytic structure associated with

slime molds

28

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

mushrooms

29

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

mycorrhizae

30

Which of the following protozoa general helps termites digest wood?

Trichonympha

31

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

16

32

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

a tetrad

33

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

late anaphase and early telophase

34

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

coenocytes

35

The chromatids move toward opposite poles during _______ of mitosis.

anaphase

36

Multiple mitoses followed by a single cytokinetic event is known as

schizogony

37

The chromosomes line up in the middle of the cell during

metaphase

38

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

cytokinesis

39

Which process is represented in this figure?

meiosis

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

diatoms

41

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

algae

42

Single-celled organisms called ciliates are

protozoa

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.

Ascomycota

44

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

arachnids

45

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

merozoites

46

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

trophozoite

47

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

lichens

48

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

rhizaria

49

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

radiolarian

50

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

conidiospores

51

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

chitin

52

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

diploid

53

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

haustoria

54

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

fleas

55

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

soredia

56

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

alternation

57

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

worms

58

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

gamete

59

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

vectors


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