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EOCT Review #3 Flashcards | StudBud
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EOCT Review #3
EOCT Review #3
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Biology EOC STAAR Review
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
Members of which of the following phylahave the MOST species which areparasites of humans?
Porifera
Mollusca
Echinodermata
Platyhelminthes
2
The major source of the oxygen that isreleased into the atmosphere is
cellular respiration
photosynthesis
automobile exhaust
the weathering of rocks
3
Of the following, which is considered aliving organism?
bacterium
sperm
nucleus
mitochondrion
4
14
g
j
h
f
5
5
j
f
h
g
6
Which of the following is an abiotic factorin an ecosystem?
rock
grass
worm
fox
7
12
g
h
f
j
8
8
h
f
g
j
9
When a virus infects a bacterium, whatdoes the virus inject into the cell?
capsid proteins
viral nucleic acid
tail fibers
hormones
10
In a scientific experiment, how manyindependent variables should be tested atthe same time?
none
three or more
two
one
11
7
a
d
c
b
12
4
h
j
f
g
13
Predators often feed on weakanimals in an ecosystem.The role of thepredator is described as its
community
niche
population
habitat
14
What is the process ofmaintaining a constant internalenvironment called?
respiration
diffusion
evolution
homeostasis
15
11
d
b
a
c
16
3
d
b
c
a
17
Water (H2O) is an example of a molecule whose atoms are held together by
hydrogen bonds
metallic bonds
ionic bonds
covalent bonds
18
What is the net gain of ATP molecules(per molecule of glucose) from glycolysis?
2
1
36
4
19
10
c
d
a
b
20
6
h
g
j
f
21
Which of the following shows howinformation is transformed to make aprotein?
cell respiration → ATP → protein
DNA → RNA → protein
ATP → amino acid → protein
gene → chromosome → protein
22
Biology is the study of
molecules
science
life
animals
23
The phospholipid molecules serve to
prevent the passage of certain moleculesinto the cell
allow glucose molecules into the cell
help cells recognize each other
line up amino acids for protein synthesis
24
When the order of basesin messenger RNA (mRNA) codes for theorder of amino acids in a protein
nondisjunction
transcription
translation
replication
25
Round is dominant over wrinkled. Phenotypic ratio in a cross RR x Rr
50% RR and 50% Rr
50% round seeds and 50% wrinkled seeds
25% RR, 50% Rr, 25%rr
100% round seeds
26
Organisms in an ecosystem are linkedtogether by
geochemical pathways
greenhouse effects
water cycle
food webs
27
Which is the dominant stage in the fern life cyclerepresented by the frond?
it is the gametophyte stage
it is a parasite
it is the sporophyte stage
it is made of haploid cells
28
1
g
h
f
j
29
2
a
b
c
d
30
How many chromosomes are contained ina human male gamete cell?
11
24
36
23
31
The gene for colorblindness inhumans is recessive and mostly affectsmales.It must be located on
both the X and Y chromosome
The X chromosome
the Y chromosome
either the X or Y chromosome
32
9
j
g
h
f
33
If placed in a hypertonic solution, a plantcell will
shrink in size
remain constant in size
swell
burst
34
A terrestrial animal that must go back towater environment in order toreproduce is most likely
reptilia
mammalia
aves
amphibia
35
13
b
a
d
c
36
A gene that is sex-linked is BESTdescribed as which of the following?
it results in all female offspring
it is located on the X chromosome
it is located inside the mitochondria
it results in all male offspring
37
What is produced by the photosynthesis reaction?
light
C6H12O6
H2O
CO2
38
Which of the following arethe basic building blocks of protein?
monosaccharides
amino acids
nucleotides
nitrates
39
The observed trait in an organism as a result of its genetic makeupis called the organism’s
allele
genotype
karyotype
phenotype
40
What part of a plant functions as ananchor and as an absorption and storageunit?
leaf
stem
flower
root
