Test biology

The vegetative stage of a protozoan
Trophozoite
Which of the following pairs is mismatched?
A.Euglena: flagellum
B.Toxoplasma: cilia
C.Plasmodium: merozoites
D.Entamoeba: pseudopodia
E.Paramecium: two nuclei
B.Toxoplasma: cilia
cyst
Which of the following is a protozoan stage that allows for transmission of intestinal parasites from one host to another?
kinetoplast
cyst
schizont
foraminifera
merozoite
protozoa
Single-celled organisms called Ciliates are
the type of sexual spore produced
Most of the fungal species are classified into three divisions based on _____.
T
Zygomycota produce zygosporangia, Ascomycota produce ascospores, and Basidiomycota produce basidiospores.
chitin
Fungi and insects both use the nitrogenous polysaccharide ________ as a protective molecule in their outer surfaces.
saprobes
Organisms such as fungi that absorb nutrients from dead organisms are called ________.
mycelium
The ________ is the entire interwoven mass of one multicellular fungal organism.
mode of development.
The asexual spores of molds are classified according to their
Saccharomyces
The first eukaryote to have its entire genome sequenced was the fungus

Neurospora.
Saccharomyces.
Candida albicans.
Rhizopus.
Cryptococcus.

molds
Hyphae are associated with ___.
mushrooms
The division Basidiomycota includes which of the following types of fungi?

bread mold
ringworm
mushrooms
truffles
baker’s yeast

fungi
The ___________ include organisms classified as Deuteromycetes.
F
Fungi reproduce only asexually.
T
Diseases of animals caused by fungi are called mycoses.
worms
Microbiologists interested in parasitism study multicellular parasitic __________ as well as single-celled protozoa. (Be sure your answer is plural.)
both helminths and protozoa.
Parasitology is the study of
F
Haploid genomes contain two sets of chromosomes.
F
Protozoa are eukaryotic organisms that lack a cell wall and can be unicellular or multicellular.
zygote
The fusion of two gametes produces a
32
If a haploid cell has 16 chromosomes in its nucleus, how many would be present in the diploid state?
fungi
An unknown organism is a saprobe, gathers nutrients by absorption, lacks chlorophyll, has cell walls and is coenocytic. In which group is it most likely to be classified?
Yeast is unicellular, while mold is multicellular.
What is the key difference between yeast and mold?
Yeast have cellulose cell walls, while mold has chitin cell walls.
Yeast is colonial, while mold is multicellular.
Yeast is a fungus, while mold is an alga.
Yeast is unicellular, while mold is multicellular.
Place the sample in a clear container filled with media containing no sugars, and leave it in a sunny window. After a few weeks, look for growth of the organism.
You are given an unknown, pure sample of a eukaryotic organism. Which of the following tests would allow you to determine if the sample contains algae?
Determine if the organism is unicellular by microscopy. If it is unicellular, it is an alga.
Inject the organism into a lab animal. If it does not cause disease, it is an alga.
Place the sample in a clear container filled with media containing no sugars, and leave it in a sunny window. After a few weeks, look for growth of the organism.
Perform a biochemical test for the presence of chitin.
a chemical that inhibits the formation of cell walls
Which of the following new chemicals would NOT be effective against Giardia?
a chemical that inhibits cell division
a chemical that inhibits formation of the membrane around the nucleus
a chemical that inhibits the Krebs cycle
a chemical that inhibits the formation of cell walls
zygomycota, ascomycota, basidiomycota and deuteromycetes
The 3 fungi Divisions
definitive (final), intermediate(larval) and transport (no cycle)
The 3 hosts of helminths
nematoda, cestoda and trematoda
The 3 groups of Helminths
long, branched, tubular filaments
Hyphae
P. Sarcodina-unicellular, move by psuepods, no mitochondria
amoebae
ciliates (p. Ciliophora), Apicomplexans, Dinoflagellates
p. alveolates subgroups
based on motility: flagella, cilia and pseudopods
How is protozoa grouped?

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