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Final BIO 101 Review
Final BIO 101 Review
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BIO 101
Flashcards
116 cards
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Practice quiz
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Questions
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Answers
1
A polymer is a long chain of ______________________.
Electrons
Elements
Monomers
Atoms
2
Which biomolecule is used for energy or structure?
carbohydrates
nucleic acids
lipids
proteins
3
The last phase of photosynthesis is
the electron transport chain.
glycolysis
Calvin Cycle
citric acid cycle
4
1. Which of the following processes is the opposite of mitosis?
interphase
cytokinesis
fertilization
apoptosis
5
Selection favoring antibiotic resistance in bacteria is an example of ___
Stabilizing Selection
Directional Selection
Disruptive Selection
6
Gametes fuse to become one diploid cell during the process of:
fertilization
mitosis
replication
meiosis
7
RNA polymerase binds to the
operator
operon
promoter
regulatory gene
8
Black fur is produced by a recessive allele, which genotype represents a black fur individual?
bb
Cb
BB
Bb
9
Which type of consumer are mushrooms?
omnivore
herbivore
producer
decomposer
10
The first phase of cellular respiration is
citric acid cycle
Calvin Cycle
glycolysis
the electron transport chain.
11
The first phase of photosynthesis is
glycolysis
citric acid cycle
Calvin Cycle
the electron transport chain.
12
Polar substances are
attracted to water molecules
composed of charged molecules
composed of neutrally charged molecules
repelled by water
13
Which organelle is responsible for breaking down and absorbing materials taken in by the cell?
Mitochondria
Lysosome
Golgi Body
Endoplasmic Reticulum
14
The cell membrane is composed primarily of
nucleic acids
proteins
lipids
carbohydrates
15
Vesicles are made mostly of _________.
Proteins
Phospholipids
Nucleic Acids
Carbohydrates
16
A transgenic organism
contains a gene from another species in its genome
is any genetically modified organism resulting from research
is produced by the polymerase chain reaction.
is produced by cloning a mutant cell
17
A cell, placed in a hypertonic solution will ______.
lyse
release all solutes
shrivel
stay the same
18
What is your haploid chromosome number?
23
46
24
48
19
What type of bond results when two polar covalent bonds are attracted to eachother?
Polar covalent bond
Ionic Bond
Hydrogen Bond
Non-polar covalent bond
20
What occurs during Anaphase of mitosis?
nuclear envelope reforms
chromatids are separated and move to opposite sides
centrioles move to opposite poles
chromosomes line up down center of cell
21
Which organelle transforms one form of energy into another?
Endoplasmic Reticulum
Golgi Body
Mitochondria
Ribosome
22
The formation of gametes occurs during the process of:
mitosis
fertilization
replication
meiosis
23
Substance moves across a cell membrane from high to low concentration with help of a protein
Diffusion
Faciliatated Diffusion
Osmosis
Active transport
24
What is the monomer of a protein?
Fatty Acid
Amino Acid
Nucleic Acid
Peptide
25
Which term refers to the attraction of water molecules to one another?
hydrolysis
polarity
adhesion
cohesion
26
The introduction of normal genes into an afflicted individual for therapeutic use is called
proteomics
genetic profiling
human cloning
gene therapy
27
What are grana?
flattened disks or sacs in the chloroplast
the double membranes that surrounds the chloroplast
stacks of thylakoid membranes
fluid-filled spaces of the chloroplast
28
RNA polymerase
All of the answers are correct
Is an enzyme responsible for DNA replication.
Is required during translation
Builds an mRNA molecule.
29
The place where an organism lives out its life is called a
habitat
food chain
niche
food web
30
Which cellular organelle is responsible for making proteins from an mRNA molecule?
Nucleus
Golgi Body
lysosome
Ribosome
31
ALL cells contain all of these features EXCEPT _________.
cytoplasm
Mitochondria
cell membrane
genetic material
32
During _______, the nuclear envelope is divided. During _____, the cell (cytoplasm) is divided.
cytokinesis; mitosis
mitosis; meiosis
meiosis; mitosis
mitosis, cytokinesis
33
During which stage of meiosis do the homologous chromosomes separate?
anaphase I
metaphase I
prophase II
anaphase II
34
Point mutations always lead to a protein that is nonfunctional.
true
false
35
C4 plants
physically separate carbon fixation from the Calvin cycle.
do not fix CO2
perform light reactions during day and Calvin cycle at night
are found in colder climates.
36
Cellular respiration occurs in the ______.
Ribosome
Chloroplast
Nucleus
Mitochondria
37
Choose the correct order of classification from largest (bucket) to smallest (bucket). ______
Kingdom-Domain-Class-Phylum-Order-Genus-Species-Family
Kingdom-Class-Phylum-Domain-Genus-Order-Family-Species
Kingdom-Domain-Class-Phylum-Order-Family-Genus-Species
Domain-Kingdom-Phylum-Class-Order-Family-Genus-Species
38
Long, loose strands (like a bowl of spaghetti) of DNA found in the nucleus are called _____.
Chromosomes
Chromatids
Nucleolus
Chromatin
39
__is the blueprint for all proteins necessary in a cell
mRNA
tRNA
DNA
rRNA
40
A clown fish that lives in an anemone (both organisms are benefitted) is an example of
commensalism
mutualism
parasitism
competition
41
What happens in the Calvin Cycle?
oxygen production
fixation of CO2
passage of electrons through an electron transport system
carbon dioxide production
42
Which of the following organisms are ultimately dependent on the sun as a source of energy?
Primary consumers
Producers
Decomposers
All organisms
43
If a pea plant shows a recessive phenotype,
The genotype may be Tt or TT
The genotype can only be TT
The genotype can only be tt
The genotype may be Tt or tt
44
In cellular respiration, the final electron acceptor is ___.
CO2
ATP
oxygen
NADH
45
What means of membrane transport would a macromolecule use to enter a cell?
Active transport
Faciliatated Diffusion
Osmosis
Bulk Transport
46
DNA is copied during the process called:
mitosis
meiosis
fertilization
replication
47
Movement of water across a membrane from high to low concentration
Faciliatated Diffusion
Osmosis
Active transport
Diffusion
48
Which section of the pre-mRNA contains the protein-coding regions?
exons
the pre-mRNA is not a code for proteins at all.
the entire pre-mRNA codes for proteins
introns
49
Early earth, around 4 billion years ago
Did not contain free oxygen in the atmosphere
Had very high levels of UV radiation
Was too hot for liquid water
All of the answers are true
50
Which of the following organelles is NOT part of the endomembrane system?
Nucleus
Mitochondria
Endoplasmic Reticulum
Golgi Body
51
The energy that is passed through the food chain came from
dead material
oil
the sun
bacteria
52
The majority of the carbon dioxide we exhale is produced in
lactate fermentation.
glycolysis
Electron Transport System
Citric Acid Cycle
53
Which best describes the flow of energy through an ecosystem?
cycling pattern
food chain
the water cycle
food web
54
Which of the following is NOT a mechanism for evolution?
Mutations
Genetic Drift
Random Mating
Natural Selection
55
The leg bones of a whale are
homologous structures
vestigial structures
analogous structures
56
The job of a species is called its
habitat
food web
niche
food chain
57
__ brings the supplies (matches codons with an amino acid)
DNA
mRNA
rRNA
tRNA
58
What type of bond results when one atom takes an electron from another atom?
Hydrogen Bond
Non-polar covalent bond
Ionic Bond
Polar covalent bond
59
Active transport
requires ATP
occurs in osmosis and facilitated transport.
is involved in diffusion.
All choices are correct
60
For translation to take place, which of the following does NOT need to be present?
DNA
tRNA
mRNA
rRNA
61
___ synthesizes and proofreads DNA strand
DNA ligase
DNA polymerase
RNA polymerase
DNA helicase
62
An atom that has lost an electron is called a(n)
anion
isotope
cation
isomer
63
A chemical is analyzed and found to contain thymine and guanine. This chemical is most likely
rRNA
mRNA
tRNA
DNA
64
Which of the following is NOT a required characteristic of life?
Eating
Organization
Growth
Adaptation
65
During which phase of respiration is sugar oxidized?
Calvin Cycle
citric acid cycle
glycolysis
the electron transport chain.
66
A parent cell has 48 chromosomes, how many chromosomes will a daughter cell have after mitosis?
48
23
96
24
67
When glucose is broken down, only some of the energy is converted into usable ATP. The rest is
released as heat
converted into more glucose
simply lost
converted to CO2
68
Substance moves across cell membrane from low to high concentration with help of a protein
Osmosis
Active transport
Faciliatated Diffusion
Diffusion
69
A cell is small, has a cell wall, has a green pigment and no nucleus. It is probably a ___.
plant cell
protist
cheek cell
photosynthetic bacteria
70
Most of the energy harnessed in cellular respiration is generated during which step?
citric acid cycle
the electron transport chain.
Calvin Cycle
glycolysis
71
A polymer is formed by which reaction?
respiration
dehydration synthesis
hydrolysis
monosaccharide
72
The last phase of respiration is
citric acid cycle
Calvin Cycle
the electron transport chain.
glycolysis
73
Which of the following is NOT considered an organism?
Brain
Plant
Human
Bacteria
74
An enzyme is a protein that causes the rate of the reaction to slow down.
false
true
75
An atom with extra neutron is called a(n)__________________.
anion
isotope
cation
isomer
76
Which molecule can cross a cell membrane directly?
small, polar molecule
glucose
small, nonpolar molecule
polar macromolecule
77
Organisms produced as a result of mitosis exhibit a great deal of genetic variation.
false
true
78
Chloroplasts produce _____________ .
Glucose and Oxygen
Lipids and carbon dioxide
ATP and Lipids
Carbon Dioxide and ATP
79
_____controls which genes are accessible
chromatin structure
post translational control
transcriptional control
translational control
80
The ability of living things to maintain stable internal conditions is called
adaptation
metabolism
apoptosis
homeostasis
81
Which life history strategy do elephants use?
K- selection
R- selection
A- selection
82
Endergonic reactions
have an energy output like in the conversion of ATP to ADP.
have products with less free energy than the reactants.
release energy
require an input of energy
83
What is the function of gel electrophoresis in genetic engineering?
introduce rDNA into a host cell
separate fragments of DNA by length and electrical charges.
cut DNA into many fragments
make millions of copies of a specific segment of DNA
84
Human blood has a pH of about 7.4. This is
slightly basic
neutral
slightly acidic
very acidic
85
Chromatin is composed primarily of
lipids
proteins
carbohydrates
nucleic acids
86
Which of the following is a source of genetic variation in sexually reproducing organisms?
crossing over
fertilization
independent assortment
All of the choices are sources of genetic variation.
87
Enzymes are composed primarily of
carbohydrates
proteins
lipids
nucleic acids
88
Snapdragons display 3 phenotypes. RR=red rr=white Rr=pink. Which type of dominance is this?
incomplete dominance
complete dominance
pleiotropy
Codominance
89
The daughter cells formed after meiosis are called
gametes
zygotes
embryos
body cells
90
Which of the following is NOT a biomolecule?
Lipids
Protein
Carbohydrate
Amino Acid
91
What type of bond results when two atoms share electrons equally?
Polar covalent bond
Hydrogen Bond
Non-polar covalent bond
Ionic Bond
92
Membrane channels are composed primarily of
nucleic acids
lipids
proteins
carbohydrates
93
All of the following are associated with translation EXCEPT
Attachment of a ribosome to mRNA.
production of mRNA
Growth of polypeptide chain
Binding of two tRNA molecules per ribosome.
94
Sodium moves out of a cell from a low to a high concentration using ______ transport.
Osmosis
Diffusion
Faciliatated Diffusion
Active transport
95
Which of the following represent a method of quality control for a cell?
contact inhibition
all of the choices
checkpoints
apoptosis
96
What structure is required for a eukaryotic organism to be classified as an autotroph?
nucelus
chloroplast
golgi body
mitochondria
97
The function of DNA ligase in recombinant technology is to
cut DNA into many fragments
introduce rDNA into a host cell
make millions of copies of a specific segment of DNA
seal DNA into an opening created by restriction enzymes.
98
Growth of an individual occurs because of the process called:
replication
mitosis
fertilization
meiosis
99
1. Which of the following is NOT a form of potential energy?
water in dam
food
ATP molecule
they are all examples of potential energy
100
Which is NOT true about the cell theory?
It states that bacteria can arise spontaneously.
It applies to all forms of life.
It states that all cells come from preexisting cells.
It states that all organisms are composed of cells.
101
In multicellular organisms, the function of mitosis includes all of the following except
repair
asexual reproduction
growth
development
102
What is the function of restriction enzymes in genetic engineering?
separate fragments of DNA by length and electrical charges.
cut DNA into many fragments
make millions of copies of a specific segment of DNA
introduce rDNA into a host cell
103
The movement of a substance from a high concentration to a lower concentration is called
Diffusion
Faciliatated Diffusion
Osmosis
Active transport
104
According to the endosymbiosis theory ________ were engulfed by larger eukaryotic cells.
lysosomes
Golgi Body
ribosoomes
Mitochondria
105
Which of the following is hydrophobic?
polysaccharide
DNA
C6H12O6
Lipid
106
The function of a vector in genetic engineering is to
make millions of copies of a specific segment of DNA
cut DNA into many fragments
seal DNA into an opening created by restriction enzymes.
introduce rDNA into a host cell
107
Which of the following is the correct formula for photosynthesis?
6CO2 + 6H2O + sunlight --> C6H12O6 + 6O2
6O2 + C6H12O6 --> ATP + 6CO2 + 6H2O
6CO2 + 6O2 + sunlight --> 6H2O + C6H12O6
C6H12O6 + 6H2O + sunlight --> 6CO2 + ATP + 6H2O
108
__is a copy of the code from the nucleus used to build a specific protein
rRNA
DNA
mRNA
tRNA
109
The maximum number of individuals of a given species the community can support is called the
K- selection
Biotic potential
Rate of natural increase
Carrying capacity
110
What is the smallest level of organization that is considered LIVING?
Tissue
Cell
Organism
Molecule
111
While eating lunch, we are consuming ____ energy, which is converted into __ energy to do work.
kinetic; potential
potential; free
potential; kinetic
free; stored
112
The function of the polymerase chain reaction in genetic engineering is to
make millions of copies of a specific segment of DNA
cut DNA into many fragments
separate fragments of DNA by length and electrical charges.
seal DNA into an opening created by restriction enzymes.
113
ALL food chains start with which group?
producer
carnivore
primary consumer
decomposer
114
Mitochondria produce _____________ .
ATP and Lipids
Carbon Dioxide and ATP
Glucose and Oxygen
Lipids and carbon dioxide
115
__ builds a polypeptide with peptide bonds between amino acids
tRNA
mRNA
rRNA
DNA
116
A cell with 1% NaCl is placed in a solution with 2.06% NaCl. The solution is _________.
isotonic
multitonic
hypertonic
hypotonic