Which of the following elements in common in living organisms?

Phosphorus, Oxygen, Hydrogen, Carbon

Cellulose is a polysaccharide and is the most abundant organic molecule on earth. Which is true about cellulose?

It is a polymer, It is a carbohydrate, Its molecular formula has the general ratio of CH2O, It contains only carbon, hydrogen, and oxygen

When tree leaves change color in the autumn,.....

Both Accessory pigments and Chlorophyll breaking are correct

Macroevolution...........

major genetic changes that occur over long periods leading to new species

In the inheritance pattern known as "incomplete dominance", ..............

Heterozygotes express a mixture of alleles (an intermediate condition)

Polyploidy is the condition of .........

Having more than 2 sets of chromosomes

In the inheritance pattern known as "codominance", ...........

Heterozygotes express both alles at the same time

The science of studying the evolutionary relationships of organisms

One important impact of biology in our daily lives that we discussed in class was...

Helping a sick person get well through the proper use of antibiotics, Control of disease through the use of vaccines, Understanding how to preserve food by killing potentially harmful bacteria, Domestication of plants and animals for food

The correct basic equation for photosynthesis is.......

Light + 6CO2 + 6H2O > C6H12O6 + 6O2

Movement of molecules into a cell

Which of the following is NOT an assumption of natural selection?

All organisms are exactly alike

Science that studies relationship between organisms and their environment

Chemical energy involves...

Chemical bonds holding atoms together in a molecule

Heterotrophs are organisms that...

Obtain their energy by consuming other organisms or parts of organisms

In the scientific method, if a hypothesis is rejected, the next step is to..

Revise the hypothesis and test again

During the events known as "the electron transport system" of respiration,.......

Hydrogen ions diffuse into the matrix of the mitochondrion, Water is formed, Electrons are shuttled from molecule to molecule on the inner membrane, Hydrogen ions are pumped into the inter-membrane space of the mitochondrion

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BIOL 121 SIC PART 1 FINAL EXAM

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Answers

1
Which of the following elements in common in living organisms?
Phosphorus
Oxygen
Hydrogen
Carbon
2
Coenzymes are inorganic cofactors like Mg, Zn, Co.
False
True
3
Enzymes are referred to as.....
Biological rejects
Biological catalysts
Biological cats
Biological carbohydrates
4
A malignant tumor fragments easily and spreads throughout the body
True
False
5
According to the Biological Species Concept, a species is defined as a group of reproductively isolated organisms.
False
True
6
The movement of molecules from an area of low concentration to an area of high concentration is called..
endocytosis
active transport
phagocytosis
diffusion
7
Gregor Mendel .......
All of the above
Experimented on pea plants
Was a monk
Is known as the "Father of Genetics"
8
Metabolism involves....
All of the above
Processing nutrients
Taking in nutrients
Eliminating waste
9
Chemical reactions that generate larger, more complex molecules are considered.....
Catabolic
Cathartic
Autonomic
Anabolic
10
Outward expression of a gene
RNA polymerase
Termination
Anticodon
Phenotype
11
Which of the following is an example of how humans have negatively impacted natural communities?
Introduction of exotic species
All of the above
Over-fishing
Coverting forest land to agricultural land
12
Lamarck claimed that evolution was driven by passing on acquired characteristics. This idea for evolution......
Is true and the basis of modern evolutionary theory
Works for animals but plants use a different strategy
Is true for certain species
Is not true
13
Humans have ......... pairs of chromosomes in normal body cells.
22
46
23
13
14
What type of macromolecules can be used in anaerobic cellular respiration?
All of the above
Lipids
Proteins
Carbohydrates
15
Examples include the wing of a bat and the wing of a butterfly
Analogous structures
Genetic drift
Directional selection
Adaptive radiation
16
Cellulose is a polysaccharide and is the most abundant organic molecule on earth. Which is true about cellulose?
It is a polymer
It is a carbohydrate
Its molecular formula has the general ratio of CH2O
It contains only carbon, hydrogen, and oxygen
17
When tree leaves change color in the autumn,.....
Chlorophyll is breaking down
Chlorophyll is being produced in massive quantities
Accessory pigments are seen because chlorophyll is no longer produced
Both Accessory pigments and Chlorophyll breaking are correct
18
Macroevolution...........
Is the change in allele frequencies in a population over a few generations
major genetic changes that occur over long periods leading to new species
Happens in some species but not others
None of the above
19
During photosynthesis, the major organic product of the light-independent reactions is........
NAD
Glyceraldehyde-3-phosphate
NADPH
Oxygen
20
Denaturing a protein is reversible.
False
True
21
Speciation is the smallest, irreversible unit of evolution.
False
True
22
Increase in one extreme phenotype with decrease of all others
Genetic drift
Adaptive Radiation
Directional selection
Selective breeding
23
In the inheritance pattern known as "incomplete dominance", ..............
Heterozygotes express only the dominant allele
Heterozygotes don't express either allele
Heterozygotes express a mixture of alleles (an intermediate condition)
Heterozygotes express both alleles at the same time
24
Natural selection can be easily observed in a population of clones.
False
True
25
DNA and RNA use the same nitrogenous bases except DNA has uracil in place of thymine.
True
False
26
Organisms are considered to have similar ancestry if.....
They have similar life cycles
All of the above
They have similar DNA
They have similar body structures
27
The binomial nomenclature system we use today was developed by.....
Carolus Linnaeus
Louis Pasteur
Richard Dawkins
Albert Einstein
28
Polyploidy is the condition of .........
Having more than 2 sets of chromosomes
Having 2 sets of chromosomes
Having 1 set of chromosomes
None of the above
29
In the inheritance pattern known as "codominance", ...........
Heterozygotes express both alles at the same time
Heterozygotes don't express either allele
Recessive alleles are expressed
Heterozygotes express a mixture of alleles (an intermediate condition)
30
Phylogeny is........
The science of living things
The science of studying the evolutionary relationships of organisms
The science of naming and grouping organisms
The science studying the biological cost involved with economic growth
31
One important impact of biology in our daily lives that we discussed in class was...
Helping a sick person get well through the proper use of antibiotics
Control of disease through the use of vaccines
Understanding how to preserve food by killing potentially harmful bacteria
Domestication of plants and animals for food
32
Organic Molecule
Contains carbon
Tendency to seek a stable, filled outer energy level
Contains chlorophyll
Movement of molecules into a cell
33
The correct equation for aerobic cellular respiration is C₆H₁₂O₆ + 6O₂ > 6CO₂ + 6H₂O + Energy
True
False
34
A substance that has mass and takes up space is composed of...
Positrons
Matter
Gluons
Energy
35
The correct basic equation for photosynthesis is.......
Light + C6H12O6 + 6O2 > 6CO2 + 6H2O
Light + 6CO2 + 6H2O > C6H12O6 + 6O2
Light + C6H12O6 + O2 > 6CO2 + H2O
Light + CO2 + H2O > C6H12O6 + O2
36
Isotopes are atoms of an element that vary in the number of protons.
True
False
37
Endocytosis
Contains carbon
Contains chlorophyll
Movement of molecules into a cell
Tendency to seek a stable, filled outer energy level
38
In a solution, the material in lesser quantity is called the..
solute
solvent
salt
dissolve
39
Generates glyceraldehyde-3-phosphate
ATP synthase
Negative feedback
Fermentation
Light-independent reaction
40
Mitosis reduces the amount of genetic material by 50%.
True
False
41
Standing upright (bipedalism) allowed our hominin ancestors that advantage of.....
All of the above
More rapid movement over long distances
The ability to see over long distances
Freeing the arms for using tools and carrying offspring
42
Longer wavelength photons are higher energy than shorter wavelength photons.
True
False
43
Which of the following is NOT an assumption of natural selection?
All organisms are exactly alike
Individuals with more favorable characteristics produce more offspring
None of the above
Organisms produce more offspring than can survive
44
Sex-linked
Termination
Phenotype
Anticodon
Gene found on the X chromosome
45
Ecology is.......
The science of dealing with phylogeny and taxonomy
All of the above
The study of life
Science that studies relationship between organisms and their environment
46
Chemical energy involves...
The movement of electrons
Chemical bonds holding atoms together in a molecule
Wave-like energy such as radio waves
The energy found in the nucleus of atoms
47
Heterotrophs are organisms that...
Cannot move on their own
Generate their own food through exposure to an outside energy source
Do not metabolize
Obtain their energy by consuming other organisms or parts of organisms
48
In the scientific method, if a hypothesis is rejected, the next step is to..
None of the above
Do nothing at all
Revise the hypothesis and test again
Stop and communicate with others
49
The first cells were eukaryotic.
True
False
50
During the events known as "the electron transport system" of respiration,.......
Hydrogen ions diffuse into the matrix of the mitochondrion
Water is formed
Electrons are shuttled from molecule to molecule on the inner membrane
Hydrogen ions are pumped into the inter-membrane space of the mitochondrion
51
An animal cell placed in a solution that is hypotonic relative to the cell will....
Stay the same - the cell membrane is not permeable to water
Gain water through facilitated diffusion
Gain water through osmosis
Lose water through osmosis
52
If a DNA strand has the base sequence T,A,C,T,G,A,G,C,C the complementing DNA strand would be..
C, G, T, C, A, G, A, T, T
A, U, G, A, C, U, C, G, G
C, G, U, C, A, G, A, U, U
A, T, G, A, C, T, C, G, G
53
Chromosomes not associated with sex determination are called....
Anti-sex chromosomes
Introsomes
Sex chromosomes
Autosomes
54
The RNA sequence GCC-GGA-ACU would code for the amino acid sequence ..........
Glutamine-leucine-stop
Proline-arginine-threonine
Isoleucine-glycine-serine
Alanine-glycine-threonine
55
During Anaphase II, .....
The nuclear membrane reforms
Centromeres seperate and chromosomes move toward opposite poles of the cell
Crossing over occurs
Homologous pairs of chromosomes line up on the equator of the cell
56
Which of the following is an example of an abiotic environmental factor?
A tree in which a squirrel lives
Sticks used to make a birds nest
Stones in a local garden
A road-killed raccoon
57
Natural selection as the driving force behind evolution was proposed by......
Alfred Wallace
Charles Darwin
Gregor Mendel
Both Alfred and Charles
58
The nucleus of eukaryotic cells.....
May have evolved from enfolding of the cell membrane
May have evolved when the cell realized it needed more protection for DNA
Evolved before eukaryotic cells
Evolved approximately 4 billion years ago
59
A group of organisms of the same species in the same geographic area is called a population.
True
False
60
The Electron Transport System of aerobic cellular respiration ......
Produces 32 ATP
Transports electrons out of the cell
Lower the activation energy of biochemical reactions
Produces 38 ATP but 4 ATP are used to break apart glucose
61
Evolution
Selective breeding
Genetic drift
Adaptive Radiation
Continental drift
62
In a large population, ......
Random genetic drift has more impact
Migration is not a factor
Dominant alleles are always more common
Genetic diversity tends to be high
63
Intramolecular hydrogen bond...
Form between adjacent molecules
Don't exist in living systems
Are strong chemical bonds
Form within molecules and contribute to its 3-dimensional shape
64
The theory of punctuated equilibrium is that evolution happens in spurts of change followed by long period of stability
False
True
65
Vacuoles are smaller and vesicles are larger.
True
False
66
The first amino acid of every protein is ...... but it can be removed later if not needed.
Methionine
Alanine
Proline
Leucine
67
Which of the following exhibits the most amount of kinetic energy?
a glass of water
steam coming from a boiling tea kettle
all of the above exhibit the same amount of kinetic energy
An ice cube
68
Cytokinesis involves the........
Division of the cytoplasmic material
Division of the chromatids
Build-up of the new DNA
Division of the chromosomes at the equator
69
During the S stage of Interphase, ..........
DNA is replicated
The nuclear membrane breaks down and chromatin condenses into chromosomes
Centromeres break down
Spindle fibers form
70
The mutation AUG ACG AAG CUG CCU > AUG ACG CAG CUG CCU is known as a(n).....
In-Del mutation
Nonsense mutation
Frame-shift mutation
Mis-sense mutation
71
Movement INTO a population is termed.......
Emigration
Immigration
Denigration
Leavigration
72
Careful selection of individuals with desirable traits and their controlled mating
Analogous Structures
Preference selection
Selective breeding
Directional selection
73
Ribosome releases mRNA
Phenotype
Anticodon
Termination
RNA polymerase
74
Irritability
Movement of molecules into a cell
Tendency to seek a stable, filled outer energy level
Contains carbon
Immediate response of an organism to a stimulus in the environment
75
In alcohol fermentation, Glucose is split, and 2 molecules of ethanol and 2 molecules of carbon dioxide are formed
False
True
76
Organisms that generate their own food from exposure to chemicals (like sulfides) are called photoautotrophs.
True
False
77
An organism that cannot generate its own food and must consume other organisms is called a(n)..........
Chemosynthetic autotroph
Heterotroph
Eubacteria
Euglena
78
Cilia and flagella are both hairlike extensions from the cell but flagella are longer and less numerous.
False
True
79
How many protons are found in the nucleus of an atom of phosphorus?
46
31
16
15
80
Contains 2 carbon atoms
ATP synthase
Negative feedback
Acetyl group
Fermentation
81
During the light independent reactions of photosynthesis, the enzyme...captures carbon dioxide from the atmosphere.
NAD+
FAD+
None of the above
Ribulose bisphosphate carboxylase (RuBisCo)
82
In complete dominance, a recessive allele is only expressed in the absence of the dominant allele
True
False
83
Mechanisms of geographic isolation can include.........
Appearance of new geographic barriers
Extinction of intermediate populations
Colonization of a distant area
All of the above
84
Name the four stages of mitosis in the correct order.
Metaphase, Anaphase, Telophase, Prophase
Prophase, Metaphase, Anaphase, Telophase
Prophase, Anaphase, Metaphase, Telophase
Prophase, Telophase, Metaphase, Anaphase
85
Genetic diversity allows a population to adapt to its specific environment. This is called....
Distribution
Migration
Local adaptation
Speciation
86
Enzymes have 3-part names. To what does the second part of the name correspond?
The suffix -ase
The substrate on which the enzyme will act
The best conditions for the enzyme
The action the enzyme will take (what it will do)
87
Evolution is.......
Not true
The change in a species over time
Impossible to observe or measure
The same process as protein translation
88
Hydrolysis involves...
Using water to split larger molecules into smaller ones
Removing a water molecule and building up larger molecules from smaller one
The loss of an electron
Adding a phosphate group to a molecule
89
During the light capturing events of photosynthesis, ......
Photons strike photosystems and excite electrons
A nitrogen atom from the atmosphere binds with chlorophyll
A molecule of diatomic helium is realeased
A carbon atom from CO2 is fixed to ribulose
90
A founder effect results from........
A small group of individuals that establish a new colony far from original
Most of the population being eliminated and only a few individuals survive
Random natural disasters that cause a loss of a few individuals
Physical barriers that divide a population into 2 large groups
91
Some genes avoid natural selection because they are not expressed until after the individual has reproduced
True
False
92
During translation, transfer RNA (tRNA) carries amino acids to the developing protein.
False
True
93
Mitosis results in 2 cells identical to the parent cell while meiosis results in 4 cells with 1/2 the chromosomes parent
True
False
94
When an enzyme and a substrate interact, a(n) ......... is formed.
Enzyme-chemical complex
Substrate-reaction complex
Substrate-chemical complex
Enzyme-substrate complex
95
Two molecules that have the same empirical formula but different structural formula are called....
Isotope
Anions
Cations
None of the above
96
A non-science is a discipline or study that employs the scientific method.
True
False
97
Regulation is a control process whereby metabolic activities occur at the proper rate.
True
False
98
The resultant organism produced from the use of recombinant DNA technology is called a.....
Clone
Viral modified organism
Gentically modified organism
Augmented organism
99
Most trophic interactions involve very simple "chains" of producers and consumers
False
True
100
Cycling of materials can include.......
All of the above
Decomposers releasing nutrients back into the environment
Atoms moving through trophic levels
Water evaporating from the ground or ocean forming new clouds
101
Builds nucleic acid
Termination
Gene found on X chromosome
RNA polymerase
Phenotype
102
In the expression C₆H₁₂O₆ into 2C₂H₅OH + 2CO₂, the reactant(s) is(are)..
Zymase + 2C2H5OH + 2CO2
C6H12O6
2C2H5OH + 2CO2
C6H12O6 + zymase
103
Biology is the study of....
Life
Animals
Weather
Plants
104
For gene "J" in a mouse population where n = 6843 and p = 0.58, find q.
3968.94
0.42
0.3364
1
105
Which of the following nitrogenous bases is not found in DNA?
Thymine
Uracil
Guanine
Cytosine
106
In an atom, protons orbit around the nucleus.
True
False
107
Alpha helices and beta sheets are examples of
Protein teritary structure
Protein secondary structure
Protein primary structure
Carbohydrate secondary structure
108
The first animals to move into the terrestrial environment were.......
Amphibians
Humans
Reptiles
Arthropods
109
Autotrophs produce vitamins that heterotrophs need to generate coenzymes.
True
False
110
A theory is...
None of the above
A statement with very little support
A weak scientific statement that should not be trusted
A strong scientific statement that explains a range of phenomena
111
The complete loss of a species is called.....
Adjudication
Conflagration
Speciation
Extinction
112
Genetic drift is.......
The change in an individual's genes over time
The change in allelic frequency of a population over time
The change in an individuals behavior over a lifetime of experience
Impossible to observe
113
Fitness.........
Is a relative measure of an individual's reproductive sucess
Is a measurement involving the number of offspring an individual has
Increases as an organism has more offspring that breed
All of the above
114
During photosynthesis........
All of the above
Glyceraldehyde-3-phosphate is produced
Carbon dioxide is attached to a 5-carbon sugar
Electrons are excited and move through an electron transport system
115
Aerobic cellular respiration.........
Produces 2 ATP NET
Cannot take place in Eukaryotes
Produces 32 ATP NET
None of the above
116
The autotroph hypothesis states.....
All organisms are heterotrophs
Autotrophs evolved from heterotrophs
Heterotrophs evolved from autotrophs
The first cells were heterotrophs
117
During the Krebs cycle 1 acetyl group is bound to the 4-carbon molecule "oxaloacetate" to form "citrate" a molecule.....
Consisting of 4 carbons
Consisting of 2 ATP
Consisting of 5 carbons
Consisting of 6 carbons
118
What are the possible genotypes for the cross Ee x Ee?
EE, ee
EE, Ee, ee
Ee, EE
E, e
119
Fermentation (anaerobic cellular respiration) has many applications to food and drink.
False
True
120
Selecting agents favor individuals with the best combinations of alleles.
False
True
121
Migration.........
All of the above
Can be movement of individuals into and out of a population
Can alter allele frequency of a population
Can contribute to genetic drift
122
How much NET ATP is produced from 1 molecule of glucose via anaerobic cellular respiration?
4
2
36
40
123
A carcinogen......
Is an agent that mutates DNA
Is a mutagen
All of the above
Causes cancer
124
Tropical rainforests......
Have a relatively low diversity of plants and animals
Are usually very moderate in temperature
None of the above
Tend to have low levels of precipitation
125
By convention, the dominant allele is represented by an uppercase letter while a recessive is represented by lowercase
True
False
126
Chloroplast
Immediate response of an organism to a stimulus in the environment
Movement of molecules into a cell
Contains chlorophyll
Contains carbon
127
Anaerobic
Fermentation
Negative feedback
ATP synthase
Acetyl group
128
The hypothesis that life arose elsewhere in the universe and was transported to earth is called........
Protoplanet nebular model
Spontaneous generation
None of the above
Panspermia
129
Monoculture......
practice of raising many individuals, same variety of organism in same area
All of the above
Decreases genetic diversity
Is a relatively efficient method of farming
130
Mitochondria...
Are organelles associated with cellular respiration
Are the "packing and shipping centers" for the cell
Contain chlorophyll
Are only found in autotrophs
131
Genetic drift is the same as........
The condition where an individual chages its genes
Continental drift
Evolution
All of the above
132
............ are molecules that absorb certain wavelengths of light and reflect others
Pigments
Micromolecules
Apparent
Translucent
133
Which of the following is a macromolecule?
Carbohydrate
Lipid
Nucelic acid
Protein
134
An allele is best described as ..........
Only found in bacteria
Only visible in plant cells when stained with methylene blue
Never expressed in eukaryotes
A variation of a gene
135
Many plants, like the Cannabis plant, produces toxins that can be used by humans as medicines
False
True
136
The acronym "DNA" stands for ..........
Decaroboxylaed Nucleic Acid
Deoxyribonucleic Acid
Demtalated Nucleotidic Acromyde
Deoxyphosphoric Nucleic Acid
137
Sequence of nucleotides complimentary to the codon
Anticodon
Termination
Phenotype
Gene found on X chromosome
138
End product acts as inhibitor for earlier enzyme
Acetyl group
Negative feedback
ATP synthase
Fermentation
139
When some individuals are chosen as mates over others because they are more aggressive or brightly colored, it is called
None of the above
Plant pollution
Individual adaptation
Sexual selection
140
An atom that has gained an electron is called a(n)..
Cation
Frion
Anion
Bion
141
Gene-repressor proteins...........
Increase the amount of an enzyme
Decrease the amount of an enzyme
Carry vacuoles to the cell membrane to release waste
Convert DNA into RNA
142
Which of the following is an example of a generative process?
A cell dividing into 2 new cells
Sexual reproduction
A cell getting larger as it takes in nutrients
All of the above are generative processes
143
The Krebs cycle occurs in the mitochondrion and result in the production of 2 ATP per molecule of glucose
False
True
144
The "Out-of-Africa" hypothesis of the origin of modern humans states......
Modern-humanplaced in eastern Africa by intelligent beings from outer space
None of the above
Modern humans developed in eastern Africa then migrated to Europe and Asia
Homo erectus migrated to Europe+Asia then evolved to modern-humans on own
145
Octet Rule
Contains carbon
Contains chlorphyll
Tendency to seek a stable, filled outer energy level
Movement of molecules into a cell
146
Phosphorylates ADP
Acetyl group
Negative feedback
ATP synthase
Fermentation
147
Speciation without some sort of geographic isolation is most often a result of.......
None of the above
Interspecific mating
Polyploidy
Non-random mating
148
The loose, jumbled mass of DNA found within the nucleus is called...
Cytoplasm
Kodachrome
Chromatin
Nucleolus
149
The science of naming and grouping organism is .......
Philanthropy
Taxidermy
Phylogeny
Taxonomy
150
Populations belong to the same species if
Both high degree and exhibit are correct
They have a high degree of genetic similarity
Have the same number of individuals
Exhibit gene flow
151
Hybrids produced from crossing 2 different variations of the same species are called...... hybrids.
Intraspecific
Conspecific
Cross-specific
Interspecific
152
Heterotrophs rely on autotrophs for food and oxygen.
False
True
153
Prokaryotes have a true nucleus and membrane bound organelles.
False
True
154
How many C=C bonds are found in a saturated fat?
3 or more
none
2
1
155
The optimum conditions for an enzyme
cannot be determined by biologists because the reactions happen too quickly
are those in which it works best
are 37 degrees celcius and pH 7
All of these answers are true
156
The first person to coin the term "cell" was..
Anton van Leeuwenhoek
Mattias Jakob Schleiden
Robert Hooke
Theodor Schwann
157
What is the probability of a human offspring being female with the genotypic cross XX x XY?
25%
75%
It depends on the conditions during the cross
50%
158
Which of the following molecules is a polymer?
True fat
Nucleic acid
Phospholipid
All of these are polymers
159
All living things must exhibit control processes.
False
True
160
Organisms in domain Eukarya
are prokarayotic
first appear in fossil record approximetely 425 million years ago
have membrane bound organelles
Only use RNA as their genetic molecule
161
A rapid increase in the number of closely related species
Directional Selection
Selective breeding
Adaptive Radiation
Genetic drift
162
N = 1800, Frequency of Recessive allele 60%. How many individuals are homozygous dominant?
648
1080
560
288
163
Lipids...
Have few oxygen atoms
Are non-polar
Include examples like olive oil and testosterone
Are commonly called fats
164
A mutation...........
Cannot happen in eukaryotes
None of the above
Is a change in the DNA sequence
Is always harmful
165
Carrying capacity for a population is......
All of the above
The maximum number of individuals that species the environment can support
Limited by any number of factors including food, water, nesting space, sun.
None of the above
166
Which of the following is produced during the light dependent reactions of photosynthesis?
Glyceraldehyde-3-phosphate
Both A and C are correct
NADPH and ATP
Glycogen
167
Which of the following pH measurements represents the strongest acid?
12.5
2.6
8.5
5.1
168
A chemical reaction that requires oxygen is termed.....
Autotrophs
Automatic
Aerobic
Anaerobic
169
....... are the coding regions of eukaryotic DNA.
Fermions
Bosons
Exons
Introns
170
The change in biomes as latitude increases is mimicked by increases in altitude
False
True
171
Enzymes........
Are not used up during the biochemical reaction
Are only used in bacteria
are not necessary for chemical reactions to occur at proper rate in cell
Increase the temperature of a chemical reaction
172
....... occurs in the cytoplasm but ........ occurs in the mitochondrion.
Glycolysis; the electron transport system
Glycolysis; cytokinesis
The Krebs cycle; the electron transport system
The Krebs cycle; glycolysis
173
The first terrestrial organisms were.....
Arthopods
Reptiles
Nonvascular plants
Amphibians
174
Prions are essentially "rouge" proteins and are often found in nervous tissue.
True
False
175
Speciation is....
The process of populations of species getting larger
The process of generating new species
The process of exchanging species names
The process of populations of species moving to new areas
176
The primary photosynthetic pigment of most photoautotrophs is....
Red colored pigment
Xanthophyll
Chlorophyll
Carotene
177
The functional group shown to the right is called...
Amino
Sulfhydryl
Carboxyl
Carbonyl
178
High genetic diversity....
None of the above
Is generally regarded a detrimental to a population
Means most or all indivduals in population have the same allele for a gene
Is more common in small populations
179
Messenger RNA (mRNA) is always double stranded
True
False
180
During the Kreb's cycle (citric acid cycle), pyruvate is converted to an acetyl group which is then picked up by....
Coenzyme A
Chloroplasts
Ribosomes from the rough endoplasmic reticulum
Inorganic cofactors like Mg, Zn, and Fe
181
The rate that an enzyme catalyzes a reaction is affected by .......
The activity of a neighboring cell
The density of the nuclear membrane
Where in the cell it is located
Temperature
182
In covalent bond.....
One atom "takes" an electron and the other atom "gives" an electron
Electrons are shared between atoms
Protons are shared between atoms
Positive charge on molecule attracts the negative charge on other molecule
183
In the video "becoming human" that was shown in class, "Turkana Boy" belonged to the species Homo Sapiens.
False
True
184
...... is the molecule known as the "energy currency" of the cell
Adelaide
Adenine
Astercaine
Adenosine triphosphate
185
Competitive inhibitors stop an enzyme from functioning by blocking the substrate from bonding with the enzyme.
False
True
186
Which of the following is a good example of a display of kinetic energy?
A dog running through a field
A glass of water
A coffee cup sitting on a table
A housecat sleeping in a chair
187
When we look at a plant, the leaves appear green because
That portion of the electromagnetic spectrum is reflected to our eyes
The green wavelengths of light are being absorbed by the pigment
The accessory pigments (like yellow and blue) mix together to appear green
Green is the only color that can be detected by our eyes
188
Cell membrane structure is described as...
A double layer of steroids giving an oily-like consistency
A double layer of phospholipids with many proteins embedded
A single layer of phospholipids surrounded by carbohydrates and proteins
A single layer of carbohydrates studded with proteins
189
The example of the peppered Moth in the United Kingdom changing its most common color morph from light to dark is......
The founder effect
Microevolution
Special creation
Macroevolution
190
In an enzyme-catalyzed reaction, the reactant(s) is(are) called...
Substrate(s)
Products(s)
Cofactor(s)
Coenzyme(s)
191
Coenzymes........
All of the above
Are required to allow certain enzymes to function properly
Are organic cofactors
Often require vitamins as precursors
192
Because natural selection causes individuals to become more alike, it .........
Decreases genetic diversity
Increases genetic diversity
Maintains genetic diversity
Causes mutations
193
Glyceraldehyde-3-phosphate can be used to generate......
All of the above
Cellulose
Lipids
Monosaccharides like glucose
194
What is meant by "the cell cycle"?
The events beginning with mitosis and ending with cytokinesis
The sum of all the events of a cell's existence
None of the above
Mitosis
195
Enzymes are......
Lipids
Nucleic acids
Proteins
Carbohydrates
196
The wing of bat and leg of a horse are.......
Descended from the same ancestral structure
Analogous structures
Homologous structures
Examples of divergent evolution
197
An organism's niche is........
Artificially decided upon by scientists
Where the organism lives
Very broad
Its functional role in the environment
198
Which of the following is an assumption of Hardy-Weinberg equilibrium?
Random mating
All of the above
No mutation and no migration
Very large population size
199
Organisms that have the exact same DNA as their parents are called....
Heterozygotes
Bionics
Eugenics
Clones
200
DNA is exchanged between non-sister chromatids during.......
Synapsis
Metaphase I
Anaphase II
Crossing over

BIOL 121 SIC PART 1 FINAL EXAM Flashcards | StudBud