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Duplicate of Are you smarter than your Bio Teacher?!?
Duplicate of Are you smarter than your Bio Teacher?!?
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A cummulative practice exam for Biology EOC
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154 cards
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Questions
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Answers
1
What does Independent Assortment and Cross over do for your cells?
It makes the cells similar so you can identify them
It creates more similar sex cells
It creates different cells by increasing variation
It makes it harder to reproduce cells
2
Which phase of mitosis is shown in the picture?
Metaphase
Telophase
Prophase
Anaphase
3
Which of the following is true of a zygote?
It is made up of only one cell
It is an unfertilized egg
It forms into a blastocyst
It produces haploid male gametophytes
4
Plant 2 produced asexually from Plant 1. Plant 1 has 56 chromosomes, how many chromosomes in 2?
28
112
56
14
5
Chloroplasts...
photosynthesis
plant cell
photograph
photo bomb
6
Which statement describes the role of flowers in plant survival?
Flowers contain cells that produce gametes.
Flowers produce oxygen through cellular respiration.
Flowers can absorb carbon dioxide for sugar production
Flowers contain cells that carry out photosynthesis.
7
Why can't living cells use heat to provide the activation energy for their reactions?
Heat doesn't provide activationenergy for reactions
•Heat at excessive amounts denatures proteins
At high heat, proteins and cell can lose their function
Heatis not readily available to all living cells
8
Which types of organisms developed first due to the early environmental conditions on Earth?
eukaryotic and aerobic
prokaryotic and aerobic
prokaryotic and anaerobic
eukaryotic and anaerobic
9
1. bacteria 2. viruses 3. eukaryotic 4. prokaryotic Which have organelles?
4 only
3 only
2 & 4
1 & 2
10
A baby boy inherits a recessive allele from his mother. How would he show the trait?
The allele is on an autosomal chromosome and is a twin.
The baby inherits the dominant allele from his father
The allele is on the X chromosome.
The allele is on the Y chromosome.
11
If 20% of a DNA sample is made up of thymine, T, what % of the sample is made up of cytosine,C?
50%
35%
30%
15%
12
A plant lives in area with limited sunlight. Which adaptation would be most useful to plant?
colorful flowers
deep roots
large leaves
thin cuticle
13
Through which structure do the sperm travel to exit the testes?
scrotoum
epididymis
vas deferens
seminiferous tubules
14
What is the name of the attachment point between sister chromatids in a chromosome?
Membranes
Centrioles
Spindle
Centromere
15
There are similarities between prokaryotic and eukaryotic cells. Which structure is in both?
Lysome
Ribosome
Mitochondria
Nucleus
16
A yellow solution in a tube turned Blue once an aquatic plant was placed inside. Why?
Carbon dioxide was removed by photosynthesis
Oxygen was produced by photosynthesis.
Oxygen was removed by respiration.
Carbon dioxide was produced by respiration.
17
Both lipids and carbohydrates are important in animal cells because both –
Store Energy
Provide Insulation
Form Cell walls
Contain Nitrogen
18
The combined observations of scientists did not help form which of these statements?
All cells come from other living cells
Cells are the basic unit of all living things.
All cells contain a nucleus
All living organisms are made of one or more cells.
19
This is an animal cell, what is the one organelle this cell has that others do not?
Centrioles
Mitochondria
Chloroplasts
Centromeres
20
Which of the following describes why the Miller-Urey theory is widely accepted today?
No other alternative hypotheses have been introduced
Synthesizing organic molecules from mixture of gases in lab
Amino acids spontaneously form from molecules in the atmosph
Organic molecules are present today in extremely high #s
21
Which row in the chart below indicates the correct process for each event indicated?
Row 3
Row 2
Row 4
Row 1
22
Fertilization and Pregnancy: State the stages of development in order.
Baby-> Embryo-> Blastocyst-> Zygote
Zygote-> Blastocyst-> Baby-> Embryo
Zygote-> Blastocyst-> Embryo-> Baby
Blastocyst-> Zygote-> Embryo-> Baby
23
Which mechanisms is used by the bacteria to pump antibiotics out of their cells?
active transport
diffusion
facilitated diffusion
osmosis
24
Which phase of mitosis is shown in the picture?
Prophase
Telophase
Metaphase
Anaphase
25
According to the phylogenetic tree, which organisms are least related to each other?
Trilobita and Chelicerata
Trilobita and Insecta
Insecta and Myriapoda
Insecta and Crustacea
26
In which way are photosynthesis and cellular respiration different?
Cell respir produces oxygen, while photosyn uses oxygen.
Photosyn used CO2, while cellular respiration produces CO2
Photosyn releases energy, while cell respir stores energy.
Cell respir stores ATP, while photosyn releases ATP.
27
Which of the following is NOT one of water's special properties?
High Specific Heat Capacity
Density Anomally- less dense as a solid
High Surface Tension
High Viscosity
28
Homologous chromosomes during prophase I of meiosis I. Which correctly describes the process?
condensation and segregation of alleles
crossing-over in which alleles are exchanged
segregation of sister chromatid
mutation in which the DNA content of the gene is altered
29
What does the phopholipid bilayer do for the cell?
creates a hpydorphilic exterior and hydrophobic interior
allows everything to get into the cell
creates a semi-permeable membrane
creates solely a hydrophobic exterior
30
Which of the following phrases best describes cancer?
uncontrolled cell growth caused by mutations
absence of cyclins in the DNA
multiple gene mutations on a chromosome of DNA
presence of genetic defects caused by hereditary disorders
31
Why can bacteria recognize a human gene and then produce a human protein?
The basic components of DNA are the same in human & bacteria
Bacterial cells contain the same organelles as human cells.
Bacterial & human cells contain the same kind of chromosomes
DNA replication in bacteria and humans is the same
32
This is a plant cell. Solar energy is used to produce energy-rich compounds in which structure?
B
A
C
D
33
What is the one thing that can take carbon out of the oceans and atmosphere?
Animals-Cell Respiration
Plants-Photosynthesis
Humans- Burning/Digging Up fossil fuels and Deforestation
34
Antibodies are primarily composed of amino acids, to which biomolecule would antibodies belong?
Lipids
Proteins
Nucleic Acid
Carbohydrates
35
•What is the optimal pH for the enzymeSalivary Amylase?
7
11
9
5
36
Which of the following can be determined by observing the embryos shown in the diagram?
organisms are native to the same geographic areas
organisms belong to the same genus
organisms will grow into anatomically similar adults
organisms share a common ancestry.
37
What is something this type of cell has in common with all other cells?
Ribosomes
Membrane-Bound organelles
A nucleus
Cell Wall
38
Muscle cells obtain energy to perform movement. How do muscle cells differ from other cells?
muscle cell have a larger golgi apparatus than other cells
muscle cell would have more mitochondria than other cells
muscle cell have more endoplasmic reticulum than other cells
muscle cell have larger centrioles than the other cells
39
Cell walls of fungi are composed of…
Glucose
Cellulose
Adipose
Chitin
40
If the xylem in a young tree is damaged, which process is first affected?
absorbing water from the soil
performing photosynthesis
transporting water to the leaves
transporting sugar to the roots
41
Drinking early in the first trimesters of pregnancy can be damaging because during this time..
the lungs of the fetus become functional
alcohol can easily enter the mouth of the fetus.
many of the essential organs of the fetus are forming.
the fetus cannot excrete wastes.
42
Which statement describes one of the factors affecting blood flow and its effect on blood flow?
low blood pH decreases the rate of diffusion- slow flow
narrowing of blood vessels increases pressure- faster flow
high viscosity of blood- increased resistance and slow flow
red blood cells change to a crescent shape- fast blood flow
43
Fertilization of the egg most likely occurred in which of the following structures?
C
D
F
A
44
What controls movement of materials in/out of cell and contains a double layer of phospholipid?
Cell wall
Nucleus
Cell membrane
Endoplasmic Reticulum
45
Species X produces CO2 and H2O. Species Y produces ethyl alcohol and CO2.
Only species Y is aerobic.
Both species X and Y are aerobic
Only species Y is anaerobic.
Both species X and Y are anaerobic
46
Which biomolecule contains nitrogenous bases?
Lipid
Nucleic Acid
Carbohydrate
Protein
47
After the vaccine is administered, what response to the vaccine is triggered in the body?
Production of antibodies providing active immunity.
Production of temporary resistance to the disease.
Absorption of histamines throughout the body.
Secretion of antigens by lymphocytes.
48
Which of the following describes the main benefit of completing The Human Genome Project?
Patenting specific human genes
Cloning humans
Designing new human genes
Identifying genetically-based diseases
49
The individuality of an organism is determined by the
number of amino acids in a cell
position of the ribosomes on the endoplasmic reticulum
number of nitrogenous bases in a codon
sequence of nitrogenous bases in deoxyribonucleic acid
50
Which of the following persons would most likely contract the H1N1 virus?
person received the vaccine and has a weakened immune system
person w/ no vaccine and a weakened immune syst
person w/ no vaccine but has a normal immune system
person received the vaccine and has a normal immune system
51
Cell is permeable to sucrose, glucose, and water but impermeable to starch. Which is correct?
Glucose will diffuse into the “cell.”
Starch will diffuse out of the “cell.”
Sucrose will diffuse into the “cell.”
There will be no net movement of glucose.
52
Which of the following macromolecules are part of animal tissues that insulate/conserve heat?
Carbohydrates
Nucleic Acids
Proteins
Lipids
53
What do you call it when molecules move from a high to low concentration?
exotyosis
passive transport
active transport
endocytosis
54
In this image you see DNA and its nucleotides; How do RNA nucleotides differ?
They are magical
They are the same
They contain ATCG
They contain Uracil instead of Thymine
55
A plant is placed in a closed system w/ H2O & the sun. What will happen to the plant's growth?
plant will grow faster because it is sheltered from the wind
plant will grow @ slower rate because it requires more H2O
plant will die b/c it does not have CO2 for photosyn
plant will die because it does not have oxygen for photosyn.
56
Which choice describes DNA after replication has taken place?
one molecule=2 original strands & one molecule=2 new strands
two molecules, each with two old strands
two molecules, each with one original and one new strand
two molecules, each with two new strands
57
At what point in the cell cycle does DNA replication occur and why?
during cell division, so that DNA will fit into the cells
before a cell divides,provide 2 cells with full DNA
before a cell divides, so that the DNA will fit into cells
after a cell divides, gives 2 cells a complete set of DNA
58
Which of the following is a disadvantage of genetic screening?
results could be used to determine inheritance patterns
Insurance companies drop patient’s coverage based med issue
doctor could combine a patient’s current symptom to diagnose
child having an inheritable disease can be predicted
59
What does A, B, C represent?
A-Carrying Capacity B-Prey C-Predator
A- prey B-predator C- carrying capacity
A- Predator B-Prey C- carrying capacity
60
Which best describes the role of enzymes in a chemical reaction?
absorb excess energy
release unused energy
regulate product reactivity
increase the reaction rate
61
Particles move from high to low concentration & use a carrier protein= what type of Transport?
active transport
simple diffusion
facilitated diffusion
simple osmosis
62
Mitochondrion
Stucturally supports and gives shape to the cell
Cell respiration
Digests and recycles materials
Photosynthesis
63
What is a difference between Primary and Secondary Succession?
Primary is the first build up of rocks
Secondary starts with soil and takes less time
Climax Communities
Dustbowl is an example of how great we treat our Earth
64
What happens to the available energy as you move up this energy pyramid? Why?
Lowers, energy gained by sun
Lowers, lost as heat
Increases, gained by sun
Increases, Lost as heat
65
Which cell structure is correctly paired with its primary function?
mitochondria- movement
nucleus- storage of nutrients
vacuole- cell division
ribosome- protein synthesis
66
diploid cell w 2 pairs of homologous chromos. Due to indep assort, what is the gene of gametes?
S, s, T, t
Ss, Tt
SsTt
ST, St, sT, st
67
Tall= dominant. Two heterozygous tall plants crossed, what % of offspring expected to be tall?
100%
50%
25%
75%
68
“Cell” is permeable to water only & has 0.3M glucose and environ. has 0.1M glucose, whats true?
The “cell” will decrease in volume
Glucose will enter the “cell.”
would be a net movement of water out of the “cell.”
would be a net movement of water into the “cell.”
69
What is the function of enzymes in biological system?
Enzymes act as product to create new chemical reactions.
Enzymes act as catalyst to drive chemical reactions forward.
Enzymes act as substrates when the proteins are unavailable.
Enzymes bond with substrate to create a new reaction product
70
The cambium (xylem/phloem) of a plant was damaged, what would be the most likely effect?
the plant would have uncontrolled growth
plant would not experience any change in physiology
plant would not be able to transport nutrients and water
The plant would lose its ability to carry out photosynthesis
71
Small insects can walk across the surface of calm water, but they do not break the surface.How?
The insects are light enough that they dont break H+ bonds
Insects are smll enough to see actual water molecules
Insects feet are non-polar and reflect the polar molecules
Insects use their wings to hover over the water
72
Hemophilia is sex-linked/recessive- Man w/ no hemophilia X Woman<<DAD HAS IT. Which is true?
50% chance that their daughters will have hemophilia.
Each of their sons will have hemophilia.
Their sons have a 25% chance of having hemophilia.
None of their daughters will have hemophilia.
73
What is the relationship between these three structures?
DNA controls the production of protein in the cell.
Protein is composed of DNA that is stored in the cell.
The cell is composed only of DNA and protein.
DNA is made up of proteins that are synthesized in the cell.
74
If a cell’s lysosomes were damaged, which of the following would most likely occur?
cell would have chloroplasts that appear yellow not green.
cell is less able to regulate amount of fluid in cytoplasm.
cell would be less able to breakdown molecules in cytoplasm.
cell would produce more proteins than it needs.
75
Explain how the Law of Conservation of Energy applies to this living system.
Energy cannot be created or destroyed, 90% E stays in chain
10% of the E is transfered and the other 90% is heat
10% of E is transfered, but 90% dissapears
90% of heat is transferred into the enviro. to be blown up
76
Using the data table, which solution would represent the control in this experiment?
Solution D
Solution A
Solution B
Solution C
77
Plant cells that are specialized for cell division are found in what part of the plant?
vascular tissue
root tips
leaf epidermis
stem epidermis
78
In the Origin of Life Theory, which would need to occur 1st for life to evolve?
formation of the plasma membrane
origin of genetic material
Synthesis of organic molecules
onset of photosynthesis
79
Shows a pedigree for a recessive genetic disorder. What is the genotype of individual 6?
XH Y
Xh Y
XH Xh
XH XH
80
Which of the following phases of mitosis is represented by the diagram?
Metaphase
Prophase
Telophase
Anaphase
81
The diagram below shows a cellular process that occurs in organisms. What is the name of this?
phagocytosis
mitosis
meiosis
enodcytosis
82
What does B, C, D represent?
B-logistic C-exponential D- carrying capacity
B- exponential C- carrying capacity D- logistic
B-exponential C- logistic D-carrying capacity
83
A specific type of cell is being studied, the cell contains a nucleus & cell wall. this is a..
Eukaryotic plant cell
Eukaryotis bacteria cell
Prokaryotic Animal cell
Prokaryotic bacteria cell
84
which inference can most likely be made about the cardiovascular systems of Patient A and B?
Patient B should increase salt intake to decrease blood vol.
Patient A should hydrate with water to increase blood volume
Patient B’s blood is quickly circulating=HIGH Blood Pressure
Patient A’s blood is quickly circulating=HIGH Blood Pressure
85
RedBloodCells allow H2O, CO2, & O2 in/out, other substances are blocked, the RBC membrane is
permeable
perforated
non-conductive
semi-permeable
86
Observe # of producers, primary, secondary, & tertiary consumer, Which has the least amt of E?
Primary Consumer
Secondary Consumer
Producers
Tertiary Consumer
87
Which line on the graph represents a catalyzed reaction?
non of the above
red
Both red and blue
blue
88
What can you conclude about the effect of the concentration of carbon on photosynthesis?
photosynthsis will increase constantly with increased CO2
photosynthsis doesnt use CO2, it uses O2
Photosynthesis increases along point c
photosyn increases w/ increased CO2 from point A to B
89
Which statement can be inferred from the evolutionary tree?
Species 2 is most closely related to Species 3.
Species 5 is most closely related to Species 6.
Species 3 is most closely related to Species 7.
Species 1 is most closely related to Species 8.
90
In what phase does Cross-Over occur?
Metaphase- Mitosis
Mitosis 1- Meiosis 1
Prophase- mitosis
Prophase 1 Meiosis 1
91
Humans killed giant tritons to collect spiral shells in a coral reef, the CORAL population will
decrease due to crown-of-thrones sea stars increasing
Decrease due to parrot fish decreasing
Increase due to parrot fish increasing
increase due to crown-of thorn sea stars decreasing
92
A plant needs H2O, O2, CO2, and light to survive. This shows that organisms depend on:
Carnivore-Herbivore Relationships
Symbiotic Relationships
Biotic Factors
Abiotic Factors
93
Central Vacuole
only found in plant cells for storage of waste and water
Proteins synthesis
Modifies and packs lipids to ship out
ATP formation
94
Which organelle is the site where amino acids are synthesized into proteins?
4
2
1
3
95
H+ ions are being pumped from a low concentration to a high concentration. Type of transport
active transport
facilitated diffusion
passive transport
co-transport
96
Which type(s) of cells have genetic material that is contained in a nucleus?
bacteria
both plant and animal cells
plants only
animals only
97
Which structure is represented by the letter D?
epididymus
scrotum
prostate gland
tested
98
Rough ER
Communication junction between adjoining cells
Digests, recycles materials
Modifies new polypeptide chains and synthesizes lipids
Assembly of subunits of ribosomes
99
Based on Graphs I and II above, which of the following is the best conclusion?
Leaf stomata are closed at 10 AM
The increased rate of transpir. increased leaf H2O potent.
Decreases in leaf H20 poten. are caused by increas transpir.
Flow of H2O through the stem= no effect on leaf H20 potent
100
In pure water, animal cells swell/burst, plants will not. What is responsible for difference?
nucleus
cell wall
cell membrane
mitochondrion
101
This monomer builds a macromolecule that is responsible for..
composing the majority of the cell membrane
storing energy
storing genetic information
catalyzing
102
Which set of parents can most likely produce a child with type O blood?
parent with type AB blood X other parent with type O blood
parent homozygous type A X parent with homozygous type B
parent with type AB blood X other parent with type A blood
one parent heterozygous type A X other parent type O blood
103
The name of this process is..
Transcripts
Translation
Transcription
Translator
104
Which is not a statement of the cell theory?
Cells are the basic unit of life
Cells are formed by spontaneous gen
All living things are made of cells
cells come from other preexisting cells
105
What function does ATP carry out in living things?
helps maintain the fluidity of cell membranes
used to capture and transfer energy
identifies DNA start sequences for transcription
aids in protein folding and coiling
106
Osmosis occurs when a diff. concen. of solute is on each side of the mem. what will happen?
Salt will move into the beaker, resulting in a smaller cell.
H2O will into the cell, resulting in a larger cell.
H2O will move into the beaker, resulting in a smaller cell.
Salt will move into the cell, resulting in a larger cell.
107
How does comparing the skeletons of these animals provide support for the theory of evolution?
shows possible chromosomal similarities
provides information to determine the organisms' ages
shows possible common ancestry between
provides information about the organisms' habitats
108
Biochemical substances in the human body are maintained at about a neutral pH except for the -
Lymph nodes
Internal Material of living cells- cytoplasm
Blood
Stomach Fluids
109
Water stuck to the windshield is an example of what?
Viscosity
Cohesion
Covalent bonding
Adhesion
110
The illustration below shows four lobes of the human brain. What is ?
Parietal
Occipital
Temporal
Frontal
111
Which phase of mitosis is shown in the picture?
Telophase
Prophase
Metaphase
Anaphase
112
What is the correct way to show the scientific name of a lion?
Panthera Leo
Panthera leo
panthera leo
panthera Leo
113
Which type of reproduction leads to increased genetic variation on a population?
Vegetative reproduction
Sexual reproduction
Asexual reproduction
Parthenogenesis
114
What is the 2-word naming system that we currently use today to classify organisms called?
Nomenclature Binomics
Binomial lectures
Binomial Notary
Binomial nomenclature
115
Nucleolus
Controls the sustances going inside and out of the cell
Assembly of sub-units of ribosomes
protein Synthesis
Packs/ships lipids to export for insertion into the membrane
116
What is the name of the structures responsible for generating the spindle fibers?
Hot funky chocolates
Centrioles
Membranes
Centromeres
117
How do human diseases caused by bacteria and diseases caused by viruses react to antibiotics?
Bacteria respond to antibiotics; viruses dont.
Neither responds to antibiotics
Viruses respond to antibiotics; bacteria don't
Both respond to antibiotics.
118
Which is NOT part of Darwin's observations that describes the mechanisms of natural selection?
Organisms with advantages will survive and reproduce
Organisms produce more offspring than can survive.
Disease and natural disaster will limit population growth.
Species today descended with modifications from ancestor
119
A pair of calves that have the same parents exhibit some diff. Which explains these variations
sex linkage
gene linkage
independent assortment
dominance
120
Which statement below most closely explains the link between jaw size and hominid evolution?
There appears to be no change in the jaws of hominids
jaws of hominids evolved to be larger and more protruding
jaws changed over time due to change in brain size
jaws of hominids evolved to be smaller and less protruding
121
How are cellular respiration and photosynthesis related, in terms of energy?
Energy is not involved in either
energy captured in photosyn. is used to power cell respir
energy transformed in cell respir. is used to power photosyn
Photosyn and respir perform the same task in terms of energy
122
According to this graph, what can you predict about Light Intensity and Photosynthesis?
The rate of photosynthesis is constant
light intensity has no effect
Too much light at a high intensity can damage chloroplasts
there is no photosynthesis occuring when in light
123
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases.
salt in the solution moved against the concen. gradient
The swollen gums have absorbed the saltwater solution
H2O in gums moved out b/c high concen.of salt in solution
The saltwater lowers the temperature of the H2O in the gums.
124
Which is likely responsible for changes that led to larger size, strength, & speed in horses?
Commensalism
Evolution by natural selection
Inbreeding
Mirgation
125
What are the results of this process?
Mitotic diploid cells
2 of the same molecules
One molcule that is half of the other
2 molecules that differ
126
Which of the following can be deduced from Graph I?
rate of transpiration is constant throughout this 24-hours
max flow of H2O in stem lag behind the max rate of transpir
no correlation betwn the rate of transpir & the flow of H2O
At noon, transpir exceeds the rate of H2O flow through stem.
127
When an environment has reached its carrying capacity for a certain population, which is true?
Growth and immigration rate is < death and emigration
Growth and immigration rate is > death and emigration
Growth rate is exponential
Growth and immigration rate is = to death and emigration
128
Lyosome-Like Vesicle
Photosynthesis
Makes lipids, degrades fats, and inactivates toxins
Digests, recycles materials with enzymes
Organizes and moves internal parts of the cell
129
What macro-molecules are involved in the cell (plasma) membrane?
lipids
nucleic acids
proteins
carbohydrates
130
Which of the following describes an event that results from mitosis but NOT meiosis?
two stages of cell division
daughter cells that are identical to the parent cell
four daughter cells that are produced from each parent cell
replication of cellular genetic material
131
Based on the info in the cladogram below, which trait would be observed in ray-finned fish?
four limbs
bony skeleton
amniotic egg
hair
132
Digestion of cellulose is done by cellulase and E.coli in your gut, what is this an example of?
Mutualism
Parasitism
Commensalism
133
What are you going to get on the EOC????
A
C
B
D
134
According to the cladogram shown, which organisms are most closely related?
Belliolum and Drinys
Exosperman and Bubbia
Exosperman and Tasmania
Belliolum and Bubbia
135
Which molecules store and transmit genetic information?
Nucleic Acids
Proteins
Lipids
Carbohydrates
136
There is an error in the DNA in which molecule?
segment 1 only
segment 2 & 3
segment 3 only
segment 2 & 4
137
Which explains how the stomata of a leaf is used in processes that occur in plants?
Water enters at the surface of the leaf for transpiration
CO2 enerts plant through the stomata for cell reproduction
Energy for cellular reproduction is absorbed through stomata
Gases in photosyn. are exchanged through the stomata
138
Which best describes how enzymes function in the body?
Oneenzyme can catalyze many different reactions
An enzyme is used once and thendestroyed by the cell.
Enzymes lower the activation energy of reactions.
Enzymes are converted into products by catalyzation
139
Which statement describes a component of the original cell theory that was removed?
All cells come from other preexisting cells.
All living things are made of cells.
Cells are the basic structural and functional units of life.
Cells form through spontaneous generation.
140
Which structure is represented by the letter A in the diagram above?
the petals, decorative structures which attract pollinators
the stamen, a male structure which produces pollen
the pistol, a female structure that collect pollen for ovary
the sepal, a modified leaf used for protection of the flower
141
This is a(n)
Ribosome
protein
amino acid
Polypeptide chain
142
The original sequence was ACG and the new sequence is ACA. Will this change the phenotype?
It is impossible to determine
No, even though it changed it has the same A.A
yes, because any change will change the phenotype
yes, due to new A.A
143
A bouquet of white flowers are put in a container of H2O+bluedye and the flower turns Blue HOW?
Specific Heat
hydrogen bonds between hydrogen and oxygen molecules
Cohesion and Adhesion of water molecules
Surface Tension
144
Many organisms can survive a cold winter b/c a layer of ice forms on top insulates H20, HOW?
Water molecules completely separate into ions in solutions
Water expands and becomes less dense when it freezes.
Water forms hydrogen bonds with ions and other polar subst..
Water absorbs heat when it evaporates and forms a gas
145
How many amino acids are coded for by this segment? 5' ATCAGCGCTGGC 3'
4
12
8
20
146
Which of these represents a carbohydrate?
3
4
2
1
147
Which of the following identifies the process shown at point Z?
Transcription
Replication
Translation
Translocation
148
Which process do the animals in the food web use to convert energy from food into ATP?
osmosis
photosynthesis
transcription
cell respiration
149
Protists & bacteria are in different kingdoms. What about protists & bacteria is NOT true?
Both protists and bacteria are microorganisms
Protists do photosyn., but bacteria cannot do photosyn.
Both protists and bacteria can be motile
Protists are eukaryotes, while bacteria are prokaryotes.
150
The enzyme catalase breaksdown hydrogen peroxide in H2O & O2. During the reaction, the catalase
is formed into a new enzyme
is used up
is unchanged
is changed into a product
151
A small portion of the population that is geographically isolated from the rest of the pop....
Mutation Rate
Genetic Variation
Natural Selection
Genetic Drift
152
Which explains why cells that contained mitochondria-like organ. had an evolutionary advantage?
They had more DNA
They were immune to bacterial invasion.
They were able to make more use of available energy
They were able to photosynthesize
153
Mushrooms are a type of fungus. What characteristic of fungi makes them different from plants?
Fungi are multicellular
Fungi have cell walls.
Fungi are heterotrophic.
Fungal cells are eukaryotic.
154
What could happen if the grasshoppers are killed off?
Owl pop. will grow
Blackberry pop. will grow
Rabbit pop. will grow
Shrew pop. will grow