822091
Pregunta 1
Pregunta
Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as:
Respuesta
-
Dinoflagellates
-
diatoms
-
Kelps
-
euglenoids
Pregunta 2
Pregunta
Which of the following is a common feature of diplomonads and parabasalids?
Respuesta
-
move using cilia
-
lack a mitochondria
-
have multiple mitochondria
-
contain a micronucleus
Pregunta 3
Pregunta
True or false: Spores are the most common means of reproduction
Respuesta
-
True
-
False
Pregunta 4
Pregunta
What is the function of the bacterial capsule and/or slime layer?
Respuesta
-
Protection
-
adherence
-
movement
-
all of the above
-
a and b
Pregunta 5
Pregunta
Which of the following are described as nonliving particles comprised of nucleic acid genomes enclosed in protein?
Respuesta
-
Bacteria
-
Molecules
-
Viruses
-
Protists
-
Archaea
Pregunta 6
Pregunta
Identify which of the following would not belong to the domain eukarya.
Respuesta
-
Photo synthetic plants
-
Multicellular fungi
-
Thermophilic archaea
-
multicellular animals
Pregunta 7
Pregunta
which of the following represents the correct hierarchical order, from largest to smallest.
Respuesta
-
species, genus, family, class, order
-
species, family, genus, class, order
-
class, genus, order, family, species
-
class, oder, family, genus, species
-
class, family, order, genus, species
Pregunta 8
Pregunta
which of the following represents the correct hierarchical order, from largest to smallest.
Respuesta
-
species, genus, family, class, order
-
species, family, genus, class, order
-
class, genus, order, family, species
-
class, oder, family, genus, species
-
class, family, order, genus, species
Pregunta 9
Pregunta
Tuberculosis affects the:
Respuesta
-
gastro-intestinal tract
-
circulatory system
-
respiratory tract
-
nervous system
Pregunta 10
Pregunta
True or false: Stomach ulcers are caused by the bacteria, Helicobacter pylori.
Respuesta
-
True
-
Fale
Pregunta 11
Pregunta
Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in:
Respuesta
-
the cell wall: gram+ have peptidoglycan, gram-negative have pseudo-peptidoglycan.
-
the plasma membrane: gram+ have ester-liked lipid, gram-negative have either-linked lipds
-
the cell wall: gram+ have a thick layer of peptidoglycan and gram-negative have a thin layer of peptidoglycan plus and outer membrane.
-
chromosomal structure: gram+ have circular chromosomes, gram-negative have linear chromosomes.
Pregunta 12
Pregunta
Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in:
Respuesta
-
the cell wall: gram+ have peptidoglycan, gram-negative have pseudo-peptidoglycan.
-
the plasma membrane: gram+ have ester-liked lipid, gram-negative have either-linked lipds
-
the cell wall: gram+ have a thick layer of peptidoglycan and gram-negative have a thin layer of peptidoglycan plus and outer membrane.
-
chromosomal structure: gram+ have circular chromosomes, gram-negative have linear chromosomes.
Pregunta 13
Pregunta
True or False: following rRNA sequence analysis, scientists found Domain Bacteria to be closely related to the Domain Eukarya.
Respuesta
-
True
-
False
Pregunta 14
Pregunta
Fungi obtain their food by:
Respuesta
-
ingestion
-
absorbing organic molecules that have been digested by secreted enzymes
-
undergoing photosynthesis
-
all of the above
Pregunta 15
Pregunta
Which of the following are included in the alveolar phylum:
Respuesta
-
Plasmodium (malaria)
-
Trypansosomes
-
ciliates
-
a and b
-
a and c
Pregunta 16
Pregunta
the main decomposers in the biosphere are ______ and _____.
Respuesta
-
fungi, animals
-
animals, bacteria
-
bacteria, plants
-
bacteria, fungi
Pregunta 17
Pregunta
Which on the following fungal groups reproduces using aquatic flagellated zoospores?
Respuesta
-
Glomeromycetes
-
Zygomycetes
-
Chtridiomycetes
-
Ascomycetes
Pregunta 18
Pregunta
The tropical diseases such as African sleeping sickness, Chaga's disease, and leishmaniasis are caused by:
Respuesta
-
apicomplexans
-
phytomastigotes
-
trypansomes
-
oomycetes
Pregunta 19
Pregunta
which of the following organelles present in eukaryotic cells may have resulted from an endosymbiotic relationship.
Respuesta
-
Chloroplasts
-
Rough Er
-
Ribosomes
-
Lysosomes
Pregunta 20
Pregunta
A process by which a bacteriophage may change a benign bacteria into a virulent strain:
Respuesta
-
induction
-
phage conversion
-
lysogeny
-
replication
Pregunta 21
Pregunta
the cells walls of most bacteria are composed of _____, which is not present in archaea.
Respuesta
-
polysaccharides
-
ester-linked lipids
-
capsid proteins
-
peptidoglycan
Pregunta 22
Pregunta
most viruses traget specific cells based on what is expressed on the surface of the host cell. As a result, viruses can only replicate in a limited number of host's cells. The phenomenon is commonly referred to as:
Respuesta
-
endosymbiosis
-
tissue tropism
-
selection typing
-
transformation
Pregunta 23
Pregunta
The devastating effete of AIDS results from the viral destruction of a specific type of lymphocyte known as ______ cells.
Respuesta
-
Helper T cells
-
Plasma
-
Red Blood
-
Cytotoxic B cells
Pregunta 24
Pregunta
Which of the following eukaryotic kingdoms contains a diverse group of unicellular and multicellular organisms that do not fit into any other eukaryotic kingdom?
Respuesta
-
Fungi
-
Protista
-
Animalia
-
Plantae
Pregunta 25
Pregunta
The marine multicellular protists including the larger brown algae belong to the:
Respuesta
-
dinoflagellates
-
choanofagellida
-
stramenopiles
-
euglenoids
Pregunta 26
Pregunta
specialized symbiotic associations between the roots of plants and fungi are called:
Respuesta
-
lichen
-
hyphai associations
-
mycorrhizae
-
mycelium
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