Patti's Biology

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Patti

  
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1.  What is a telomere?
A.
B.
C.
D.
2.  A father has type AB blood.  Which of the following statements is NOT true?
A.
B.
C.
D.
3.  The term 'allele' most accurately refers to:
A.
B.
C.
D.
4.  Which of the following processes contributes directly to genetic variation?
A.
B.
C.
D.
5.  A peptide bond __________.
A.
B.
C.
D.
6.  The major role of carbohydrates in animals is
A.
B.
C.
D.
E.
7.  The failure of homologous chromasomes or double stranded chromasomes to separate during meiosis is called:
A.
B.
C.
D.
8.  Which statement best summarizes the essence of chemical evolution?
A.
B.
C.
D.
9.  Where are cell membrane components synthesized?
A.
B.
C.
D.
E.
10.  An atom has six electrons in its valence shell.  How many single covalent bonds would you expect it to form in most circumstances?
A.
B.
C.
D.
11.  If an atom has a charge of +1, which of the following must be true?
A.
B.
C.
D.
12.  Somatic cells of roundworms have four chromasomes  How many chromasomes would you find in an ovum (egg) from a roundworm?
A.
B.
C.
D.
13.  As electrons are passed through the system of electron carriers associated with photosystem II, they lose energy.  What happens to this energy near the end of photosystem II?
A.
B.
C.
D.
14.  Sugar and CO2 are dissolved in water to make carbonated soft drinks.  Which of the following is the solute?
A.
B.
C.
D.
E.
15.  If a human inherits two X chromasomes (one from each parent), the person will be:
A.
B.
C.
16.  How do the alpha and beta forms of glucose differ?
A.
B.
C.
17.  At what stage of meiosis does DNA replication take place?
A.
B.
C.
D.
18.  In human and many other eukaryotic species' cells, the nuclear membrane has to disappear in order for what to take place?
A.
B.
C.
D.
19.  All of the proteins have directionality.  This means that
A.
B.
C.
D.
20.  The combination of a tRNA molecule and its properly connected and properly associated amino acid is referred to as the:
A.
B.
C.
D.
21.  Which of the following is a difference between RNA and DNA?
A.
B.
C.
D.
22.  Ribosomes can attach to prokaryotic messenger RNA ____________.
A.
B.
C.
D.
23.  Where is most of the water in cellular respiration produced?
A.
B.
C.
D.
24.  Which of the following is the best explanation for why vegetable oil is a liquid at room temperature while animal fats are solid?
A.
B.
C.
D.
25.  The lock-and-key analogy for enzymes applies to the ___________.
A.
B.
C.
D.
26.  When are atoms most stable?
A.
B.
C.
D.
27.  The microtubule-organizing center found in animal cells is an identifiable structure present during all phases of the cell cycle.  Specifically, it is known as which of the following?
A.
B.
C.
D.
28.  After chromasome separation in cell division, cytoplasm is divided between the two daughter cells in a process known as _______.
A.
B.
C.
D.
29.  If RNA polymerase is missing __________ then transcription would not begin.
A.
B.
C.
D.
E.
30.  In the polymerization of DNA, a phosphodiester bond is formed between a phosphate group of the nucleotide being added and _______ of the last nucleotide in the polymer.
A.
B.
C.
D.
31.  Put the following events of transcription in chronological order: 1. Sigma binds to the promoter region 2. the double helix of DNA is unwound, breaking hydrogen bonds between complementary strands 3. sigma binds to RNA polymerase 4. sigma is released 5. transcription begins
A.
B.
C.
D.
32.  A man and woman are both of normal pigmentation and have one child out of three who is albino (without pigmentation).  Albinism is an autosomal recessive trait.  What are the genotypes of the albino's parents?
A.
B.
C.
D.
E.
33.  The functional group (-OH) is called a __________.
A.
B.
C.
D.
E.
34.  In glycolysis, one molecule of glucose containing six carbons is converted to two molecules of _____ containing three carbons each.  This reaction also yields two molecules of _______ and two molecules of ________.
A.
B.
C.
D.
E.
35.  DNA is synthesized through a process known as semiconservative replication.  What is the template?
A.
B.
C.
D.
36.  Peroxisomes:
A.
B.
C.
D.
E.
37.  The electron transport chain ___________.
A.
B.
C.
D.
38.  How do phospholipids interact with water molecules?
A.
B.
C.
D.
39.  Proteins in biological systems ______.
A.
B.
C.
D.
40.  What is the major difference between eukaryotic DNA replication and prokaryotic DNA replication?
A.
B.
C.
D.
41.  Early investigators thought the oxygen produced by photosynthetic plants came from carbon dioxide.  In fact, it comes from ________.
A.
B.
C.
D.
42.  Which of the following is NOT synthesized from a DNA template?
A.
B.
C.
D.
43.  What makes the rough endoplasmic reticulum rough?
A.
B.
C.
D.
E.
44.  What most distinguishes lipids from other biomolecules is ___________.
A.
B.
C.
D.
45.  What does it mean when we say the genetic code is redundant?
A.
B.
C.
D.
46.  The primary function of molecular membranes is the transport of ions and molecules in and out of cells--transport is directional and selective.  The moving of molecules from areas of high concetration to that of low concentration is best described as:
A.
B.
C.
D.
E.
47.  Chromasomes and their homologues align at the equator of the cell during ________.
A.
B.
C.
D.
48.  Both parents have a heterozygous genotype for a particular trait. What are the chances that an offspring will display the recessive phenotype for that trait?
A.
B.
C.
D.
E.
49.  Free earlobes are dominant over attached earlobes.  If two people with attached earlobes have a child, what are the probabilities for the phenotype of their offspring for this trait?
A.
B.
C.
D.
50.  Why are there several structurally different pigments in the reaction centers of photosynthesis?
A.
B.
C.
D.
51.  How do eukaryotic codons and prokaryotic codons compare?
A.
B.
C.
D.
52.  Which of these represents a heterozygous genotype?
A.
B.
C.
D.
53.  Which of the following is NOT true of hydrogen bonds?
A.
B.
C.
D.
E.
54.  Homologous chromasomes are separated during ________.
A.
B.
C.
D.
55.  In which organelle are lipids synthesized and modified within the eukaryotic cell?
A.
B.
C.
D.
E.
56.  The promoter region for transcription in eukaryotic cells is referred to as the:
A.
B.
C.
D.
57.  Which electron carrier(s) functions in the Krebs cycle?
A.
B.
C.
D.
E.
58.  Why do chemical reactions tend to speed up when the concentration of the reactants is increased?
A.
B.
C.
D.
59.  Anti-codons are part of _________.
A.
B.
C.
D.
60.  What molecule serves as a link between the information-containing macromolecule DNA and protein synthesis?
A.
B.
C.
D.
61.  The energy of electron transport serves to move protons to the outer mitochondrial compartment.  How does this help the mitochondrion to produce energy?
A.
B.
C.
D.
62.  Metaphase is characterized by _________.
A.
B.
C.
D.
63.  Which of these best reflects the following relationship: monosaccharide vs polysaccharide?
A.
B.
C.
D.
64.  What type of bond results when the hydroxyl group on glycerol reacts with the carboxylic group on a fatty acid?
A.
B.
C.
D.
65.  What is the main function of the nucleolus?
A.
B.
C.
D.
E.
66.  What is a major difference between meiosis II and mitosis?
A.
B.
C.
D.
67.  Sigma plus the core enzyme of RNA polymerase is called the:
A.
B.
C.
D.
68.  What is the final result of mitosis?
A.
B.
C.
D.
69.  Within a duplicated chromasome, the chromatids are held together by a:
A.
B.
C.
D.
70.  In meiosis, centromeres split and sister chromasomes migrate to opposite poles in ________.
A.
B.
C.
D.
71.  To absorb large particles, cells engulf them within their plasma membrane in a process called:
A.
B.
C.
D.
E.
72.  The allele which is traditionally indicated by an uppercase letter is the:
A.
B.
73.  Which one of the following would you fail to find in a prokaryote?
A.
B.
C.
D.
74.  What would happen if MPF (mitosis-promoting factor) is introduced into immature frog oocytes that are arrested in G2?
A.
B.
C.
D.
75.  During elongation, which site in the ribosome represents the location where a codon is being read?
A.
B.
C.
D.
76.  A man who carries an allele of an X-linked gene will pass it on to ________.
A.
B.
C.
D.
E.
77.  When the pH of a solution goes from 7 to 11 we know that ___________.
A.
B.
C.
D.
E.
78.  If you were going to develop a new antibiotic against bacteria, you would probably need to become an expert on which of these carbohydrates?
A.
B.
C.
D.
E.
79.  In the process of transcription _________.
A.
B.
C.
D.
80.  One turn of the Calvin cycle uses _______ molecules of CO2, _______ molecules of NADPH, and __________ molecules of ATP.
A.
B.
C.
D.
E.
81.  The final electron acceptor(s) associated with photosystem I is/are ___________.
A.
B.
C.
D.
82.  During the Krebs cycle:
A.
B.
C.
D.
83.  Which one of the following organelles is NOT found in both plant and animal cells?
A.
B.
C.
D.
84.  Telomere shortening puts a limit on the number of times a cell can divide.
A.
B.
85.  Which of the following is not one of the three components that make up a nucleotide?
A.
B.
C.
D.
86.  A primary transcript in the nucleus of a eukaryotic cell is __________ the functional mRNA, while a primary transcript in a prokaryotic cell is ________ the functional mRNA.
A.
B.
C.
D.
87.  How are phospholipid molecules that make up the surface membrane of a cell organized?
A.
B.
C.
D.
E.
88.  The electrons of photosystem II are excited and transferred to electron carriers.  From which molecule or structure do the photosystem II replacement electrons come?
A.
B.
C.
D.
89.  Put the following steps of DNA replication in chronological order: 1. single stranded binding proteins (SSBPs) attach to DNA strands 2. hydrogen bonds between base pairs of antiparallel strands are broken 3. Primase binds to the site of origin 4. DNA polymerase binds to the template strand 5. an RNA primer is created
A.
B.
C.
D.
90.  Which of the following molecules must move across the nuclear membrane after being synthesized from a DNA sequence and is then translated by a ribosome (in eukaryotes)?
A.
B.
C.
D.
91.  Nucleic acids are polymers made up of which of the following monomers?
A.
B.
C.
D.
92.  During DNA synthesis which of the following structures is responsible for extending an Okazaki fragment?
A.
B.
C.
D.
93.  During elongation, RNA polymerase has three predominant channels, or grooves.  These channels provide sites for all of the following EXCEPT ________.
A.
B.
C.
D.
94.  The functional groups of amino acids ______________.
A.
B.
C.
D.
95.  What is the function of the group of amino acids on the RNA polymerase, called the rudder?
A.
B.
C.
D.
96.  Which of the following is an incorrect matching of organelle/cell part with its function?
A.
B.
C.
D.
E.
97.  Which of the following is an important difference between the rough endoplasmic reticulum and the smooth endoplasmic reticulum?
A.
B.
C.
D.
98.  How does the simple primary and secondary structure of DNA hold the information needed to code for the many features of multicellular organisms?
A.
B.
C.
D.
99.  David Pribnow studied the base sequences of promoters in bacteria and bacterial viruses.  He found two conserved regions in these promoters (the -10 box and the -35 box).  What is the function of these two regions of the promoter?
A.
B.
C.
100.  A glycosidic linkage is analogous to which of the following in proteins?
A.
B.
C.
D.
101.  The light reactions of photosynthesis supply the Calvin cycle with:
A.
B.
C.
D.
102.  Prokaryotic organisms lack:
A.
B.
C.
D.
E.
103.  Carbon is an important element for biology because ___________.
A.
B.
C.
D.
104.  Which of the following statements about the light reactions of photosynthesis are correct?
A.
B.
C.
D.
E.
105.  Crossover, the exchange of segments of homologous chromasomes, takes place during which of the following processes?
A.
B.
C.
D.
106.  Homologous chromasomes ________.
A.
B.
C.
D.
107.  The mitotic spindle is a microtubular structure that is involved in ________.
A.
B.
C.
D.
108.  What scientist first conduced the experiments that led to the discovery of the mechanisms of inheritance?
A.
B.
C.
D.
E.
109.  Given that a cell's structure reflects its function, what would you predict that the function ofa cell with a large Golgi apparatus would be?
A.
B.
C.
D.
E.
110.  What is the main purpose of the light-dependant reactions of photosynthesis?
A.
B.
C.
D.
111.  Which of the following is NOT a function of the plant vacuole?
A.
B.
C.
D.
E.
112.  The most effective portion(s) of the visible spectrum in driving photosynthesis is/are:
A.
B.
C.
D.
E.
113.  Most of the CO2 from the oxidation of glucose is released during __________.
A.
B.
C.
D.
114.  Which of the following does not occur in post-transcriptional modifications occurring in eukaryotic mRNAs?
A.
B.
C.
D.
115.  Color blindness is an X-linked recessive genetic disorder. A father is color blind.  The mother has a homozygous genotype for normal vision.  Choose the correct result regarding children of these parents.
A.
B.
C.
D.
E.
116.  The passive transport of water across a membrane from a solution of lower solute concetrate to a solution of higher solute concetration is best described as:
A.
B.
C.
D.
E.
117.  Word descriptions of a trait such as "brown", "wavy-haired", "round", "wrinkled", or "green" represent:
A.
B.
C.
D.
118.  Which of the following is NOT a product of photosynthesis?
A.
B.
C.
D.
E.
119.  Under what circumstances does membrane transport always require energy?
A.
B.
C.
D.
120.  Which of the following does NOT occur as a direct result of a photon hitting a chlorophyll molecule?
A.
B.
C.
D.
E.
121.  During DNA synthesis which of the following structures breaks hydrogen bonds between complementary bases?
A.
B.
C.
D.
E.
122.  What is the difference between NAD+ and NADP?
A.
B.
C.
D.
123.  Cellular respiration is the process by which:
A.
B.
C.
D.
E.
124.  Different steps in cellular respiration occur in different locations in the mitochondria.  Which of the following properly matches a step of respiration to its proper location?
A.
B.
C.
D.
E.
125.  The first gap in the cell cycle (G1) corresponds to __________.
A.
B.
C.
D.
126.  What aspects of amino acid structure vary among different amino acids?
A.
B.
C.
D.
127.  A pigment that transmits all wavelengths of visible light appears:
A.
B.
C.
D.
E.
128.  Once a cell completes mitosis, molecular division triggers must be turned off.  What happens to MPF during mitosis?
A.
B.
C.
D.
129.  What will happen to a red blood cell which has an internal ion concentration of about 0.9% if it is placed into a beaker of pure water?
A.
B.
C.
D.
130.  In cells, the activity of enzymes is often regulated by other molecules.  Why is this necessary?
A.
B.
C.
D.
131.  Polymerization of monomers often occurs by removing a hydrogen from one monomer and hydroxyl from the other to remove a water molecule as the monomers join.  This type of reaction is called
A.
B.
C.
D.
132.  Which of the following cellular components contains hydrolytic enzymes associated with the digestion of macromolecules?
A.
B.
C.
D.
133.  Photosystems:
A.
B.
C.
D.
E.
134.  For the duration of meiosis I, each chromosome is _______.
A.
B.
C.
D.
135.  If an X-linked trait, such as color blindness, is present in a family, the disease will occur more often in male offspring than in female offspring.
A.
B.
136.  The most abundant protein in the world is the enzyme that initiates the fixation of carbon in the Calvin cycle.  This enzyme is called:
A.
B.
C.
D.
137.  What event accompanies energy absorbion by chlorophyll?
A.
B.
C.
D.
138.  In initiation of translation, the very first aminoacyl tRNA to attach to the mRNA strand is
A.
B.
C.
D.
139.  Once researchers understood that chromasomes are moved by the spindle microtubules, the next question they wanted to answer is how the microtubules function to bring about this process.  They used fluorescent labels to make the chromasomes and the microtubular structures fluoresce.  When anaphase begain (centromeres split), they photobleached a section of microtubules.  As chromasomes moved toward the poles of the daughter cells, the photobleached sections of the microtubules remained stationary.  This result suggests that _______.
A.
B.
C.