Biology 6 - Final Examination Practice Questions.docx

Question 11 pts
This organelle is used to pump out excess water from the cell
Group of answer choices
central vacuole
golgi apparatus
anchoring junction
endoplasmic reticulum
contractile vacuole
Flag question: Question 2
Question 21 pts
Achondroplasia, a form of dwarfism, is inherited as a dominant
condition. Two people with achondroplasia, both of whom had one
parent of average height, marry and plan to have 1 child. What is the
probability that this child will have average height?
75%
0%
100%
25%
50%
Question 31 pts

How many sex chromosomes are present in a normal, healthy human
somatic cell?
Enter a numerical value
Question 41 pts
This cognitive bias is a distortion caused by the need to maintain self-
esteem.
Anchoring
Status quo bias
Apophenia
Self-serving bias
Confirmation bias
Question 51 pts
Radon (Rn) has an atomic number of 86 and and atomic mass of
222. How many neutrons does Rn have?
Question 61 pts
This molecule has an amino acid attached on one side and an
anticodon on the other

tRNA
snRNA
rRNA
mRNA
miRNA
Question 71 pts
Identify this amino acid
Proline
Tryptophan

Glutamine
Arginine
Leucine
Question 81 pts
Identify this amino acid
Cysteine
Tryptophan
Methionine
Isoleucine
Serine
Question 91 pts

Which amino acid is depicted in the image?
arginine
proline
methionine
tryptophan
histidine

Question 101 pts
Which structure is common to both Prokaryotic and Eukaryotic cells?
Organelles
Cell wall
Plasma membrane
Ribosomes
Nucleus
Question 111 pts
How many chromosomes are present in a normal, healthy human cell
during telophase of mitosis?
Type in a numerical answer
Question 121 pts
Which of the following is composed of actin protein subunits?
micofilaments
nuclear envelope
microtubules
collagen fibers

intermediate filaments
Question 131 pts
In the case of identical twins, during which stage of embryonic
development did the stem cells split apart?
Omnipotent
Pluripotent
Multipotent
Totipotent
Chronopotent
Question 141 pts
How are the carbon products of cellular respiration released from the
body?
perspiration
defecation
exhalation
urination
mastication

Question 151 pts
A comparative experiment can be used to demonstrate causation
between variables.
True
False
Question 161 pts
Scientists are studying the effect of environmental pollutants on fish
embryonic development. At high concentration, a mutagen causes
the fin along the spine to be malformed. Which body region is
affected?
Ventral
Posterior
Occipital
Anterior
Dorsal
Question 171 pts
Below is a pedigree for an inherited disorder. Determine whether the
disorder is dominant or recessive, then answer the question. Which of the
following genotypes is possible for individual IV-2?

 A = dominant allele
 a = recessive allele
Aa
aa
AA
Question 181 pts
Which of the following metabolic pathways creates ATP by substrate-
level phosphorylation?

Oxidative phosphorylation
Glycolysis
Krebs cycle
Light reaction
Calvin cycle
Question 191 pts
Which of the following is occurring in thermohaline circulation?
warm water rises in the arctic
cold air sinks at the equator
warm water rises at the equator
cold water sinks in the arctic
warm air rises in the arctic
Question 201 pts
during anaphase II of meiosis?

Question 211 pts
In this example, which of the following represents an autapomorphy?
Mouth
Potato body
Nose
Ears
Eyes

Question 221 pts
Which of the following are assumptions in the philosophy of Science?
The natural laws of the universe can be discovered
The universe works by natural laws
The universe is too expansive, exploration is futile
The universe is unknowable, all opinions are valid
The universe exists as an objective reality
Question 231 pts
In photosynthesis, this enzyme converts
to
rubisco
glyceraldehyde 3-phosphate dehydrogenase
phosphoglycerate kinase
hexokinase

enolase
Question 241 pts
Based on this Lineweaver-Burk plot, what type of inhibitor was added?
Uncompetitive
Competitive
Precompetitive
Non-competitive
Competitionless
Question 251 pts
Which of the following conditions may cause protein denaturation?
extremely high temperature
extremely high concentration of polar molecules
extremely high concentration of non-polar molecules
extreme changes in pH
Question 261 pts

Which of the following is a compound that could be stored in a central
vacuole within plant cells?
metabolic waste
pigments
organic compounds
toxins
inorganic ions
Question 271 pts
Which of the following occur during Prophase II of meiosis?
nuclear envelope forms around each genome
homologous chromosomes join into tetrads
spindle fibers connect to the chromosomes
chromosomes unwind into chromatin
the sister chromatids line up in the middle of the cell
Question 281 pts
during prophase of mitosis?

Question 291 pts
Based on the definition of living things in class, viruses are classified
as non-living.
True
False
Question 301 pts
Identify this molecule from the dark reaction of photosynthesis
3-phosphoglycerate
ribulose 1,5-bisphosphate
glyceraldehyde 3-phosphate

1,3-bisphosphoglycerate
2-phosphoenolpyruvate
Question 311 pts
A group of scientists wish to study the effects of global climate change
on wildflower populations. They hypothesize that decreases in rainfall
in the area will lead to reduced reproductive success in plants. To
observe this, they selected different groups of wildflowers in the same
meadow. For one group they left alone out in the open. For the other
group they created a shelter that blocked 30% of the rain. They
observed the flowers until the end of the growing season, then
counted the number of seeds each group produced. In this
experiment, which is the dependent variable?
the number of seeds
the soil temperature
the carbon dioxide
the amount of rain
the number of plants
Question 321 pts
The process of making bread uses yeast to perform alcohol
fermentation. Why does the bread rise during this process?

ethanol is produced
lactic acid is produced
O2 is produced
glucose is produced
CO2 is produced
Question 331 pts
In animal tissue, which tissue type is your skin?
Muscle tissue
Operculum tissue
Epithelial tissue
Nervous tissue
Connective tissue
Question 341 pts
This type of cell signaling occurs when a cell secretes a hormone that
enters the blood stream and travels all over the body
juxtacrine
apocrine

paracrine
autocrine
endocrine
Question 351 pts
Which of the following amino acids have a hydroxyl functional group in
the side chain?
Phenylalanine
Alanine
Proline
Threonine
Tyrosine
Question 361 pts
The ATP used in the Calvin cycle is produced by cellular respiration.
True
False
Question 371 pts

Which of the following will increase the rate of gene expression
RNA degradation
blocking translation
histone acetylation
presence of repressors
prescence of miRNA
Question 381 pts
This terminology refers to a group of individuals of the same species
formation
ecosystem
community
association
population
Question 391 pts
Which of the following amino acids is polar?
Leucine

Alanine
Glycine
Tyrosine
Valine
Question 401 pts
An ancestral population splits into two separate species. One species
is adapted to living in a cold environment. This adaption comes from
having mutations in a gene that causes the expressed protein to be
more stable in the cold. The other species is adapted to living in a hot
environment. This adaptation comes from mutations in the related
gene that causes the expressed protein to be more stable in the
heat. The ancestral population lives in a moderate climate and has
the original version of this gene. What is the relationship of the genes
in the cold adapted species and the hot adapted species?
Dangerous genes
Continuous genes
Heterzygous genes
Paralogous genes
Orthologous genes
Question 411 pts
Which of the following is an example of connective tissue?

Nerves
Blood
Muscle
Skin
Fat
Question 421 pts
This type of cell signaling receptor is a seven-transmembrane
receptor, examples include photoreceptors and olfactory receptors
G protein-linked receptor
Nuclear receptor
Protein kinase receptor
Alpha-numeric receptor
Ion channel receptor
Question 431 pts
In photosynthesis, which reaction produces oxygen as a by-product?
reducing chlorophyll a P680

isomerizing glucose 6-phosphate
oxidizing glyceraldehyde 3-phosphate
phosphorylating 3-phosphoglycerate
pumping H+ into the thylakoid space
Question 441 pts
A scientist is breeding flowers. They select a heterozygous individual
with a dominant phenotype. A is completely dominant, and a is
recessive. What is a possible genotype for this flower?
aa
Aa
AA
Question 451 pts
Which of the following descriptions best identifies Streptococcus?
rod-shaped bacteria connected in a bunch
rod-shaped bacteria connected in a line
thick rigid spiral-shaped bacteria
sphere-shaped bacteria connected in a line

sphere-shaped bacteria connected in a bunch
Question 461 pts
A protein has 100 amino acids. Which of the following is the closest
approximation for the nucleotide length of the mRNA for this protein?
20000
300
70
1
5000
Question 471 pts
In glycolysis, this enzyme converts
to
aconitase

hexokinase
enolase
aldolase
fumarase
Question 481 pts
during prophase I of meiosis?
Question 491 pts
Perform Translation and create a polypeptide using this mRNA
template

mRNA template: 5' - CAU AUG GGU ACG CCU UAA CAG - 3'
3' - Tyr - Val - Trp - Ala - Ser - Asp - Asp - 5'
N - His - Thr - Pro - Gln - C
N - Met - Gly - Thr - Pro - C
C - Val - Tyr - Pro - Cys - Gly - Leu - Val - N
None of the answers are correct
Question 501 pts
The collection of alleles in a population is called the ______________

chromosome
genome
epistasis
gene flow
gene pool
Question 511 pts
Hemophilia is an X-linked trait. A man without hemophilia marries a
woman without hemophilia. However, their son is born with
hemophilia. What is the genotype of the woman? You can use
scratch paper to work out the problem.
X'X
X'X'
XY
XX
X'Y
Question 521 pts
In chemical equilibrium for a reversible reaction, the concentration of
the reactants and the products must be equal.

True
False
Question 531 pts
Which of the following are Purines?
Thymine
Uracil
Guanine
Adenine
Cytosine
Question 541 pts
How can control elements regulate gene expression even though they
are far away from the promoter?
RNA polymerase III is very large
the DNA can bend
histone modification splices the pieces together
transcription factors can jump

cell service upgraded to 5G
Question 551 pts
For a reaction to be spontaneous at all temperatures, which of the
following must be true?
ΔH is positive and TΔS is negative
ΔH is negative and TΔS is positive
ΔH is positive and TΔS is positive
ΔH is negative and TΔS is negative
Question 561 pts
Identify this intermediate from glycolysis
glyceraldehyde 3-phosphate
α-ketoglutarate

fructose 6-phosphate
2-phosphoglycerate
succinyl-CoA
Question 571 pts
Which of the following are ways enzymes interact with their substrates
to catalyze reactions?
place substrates in close proximity
place substrates in proper orientation
be consumed by the reaction
bend the substrate to induce strain
bind to the substrate permanently
Question 581 pts
Based on what was discussed in class, which of the following
statements is CORRECT?
The first primates were Homo sapiens
The first mammals were primates
Homo sapiens appeared during the Phanerozoic

The earth was formed during the Hadean
The first Eukaryotes appeared during the Archaean
Question 591 pts
In the citric acid cycle, which reaction results in the reduction of FAD
to FADH2?
conversion of fumarate to malate
conversion of succinyl-CoA to succinate
conversion of citrate to isocitrate
conversion of malate to oxaloacetate
conversion of succinate to fumarate
Question 601 pts
Perform Transcription and create an mRNA strand from this DNA
template
DNA template: 3' - GAA TCT AGT CCC TAG - 5'
5' - CUU AGA UCA GGG AUC - 3'
3' - CTT AGA TCA GGG ATC - 5'
5' - CUA GGG ACU AGA UUC - 3'

3' - GAA UCU AGU CCC UAG - 5'
Question 611 pts
In a positive feedback loop, products act as non-competitive inhibitors
for an early enzyme in the metabolic pathway.
True
False
Question 621 pts
Which of the following amino acids have an acidic side chain?
Arginine
Aspartate
Glutamate
Histidine
Lysine
Question 631 pts
What type of mutation is likely to have caused the change in spike
protein structure in the delta variant of SARS-CoV-2 by altering the
amino acid sequence?

missense mutation
nonsense mutation
pathogen mutation
frameshift mutation
silent mutation
Question 641 pts
Dihybrid cross: You can use a scratch piece of paper to work out the problem, then
answer the question.
You are mating two pea plants together for their seed characteristics. There are two
characteristics encoded by genes on separate chromosomes.
 Pod shape:

o G = inflated (complete dominance)
o g = constricted (recessive)
 Pod color:
o H = green (complete dominance)
o h = yellow (recessive)
Perform a dihybrid cross for the following plants Inflated Green Pods (GgHh) x Inflated
Yellow Pods (Gghh)
What is the probability of getting a plant with Constricted Yellow Pods?
14/16
6/16
8/16
2/16
4/16
12/16
10/16
16/16
Question 651 pts
Which of the following cells are haploid in the animal sexual life cycle?
Skin cell
Sperm

Zygote
Egg
Blood cell
Question 661 pts
Diffusion is the net movement of molecules from an area of low
concentration to an area of high concentration.
True
False
Question 671 pts
Which of the following is an example of a catabolic reaction?
Cellular respiration
Photosynthesis
Protein synthesis
Dehydration reaction
DNA replication
Question 681 pts

Carbon has an atomic number of 6 and an atomic mass of 12. How
many covalent bonds can a carbon atom form?
Question 691 pts
A dehydration reaction breaks apart covalent bonds by adding 1 H2O
molecule.
True
False
Question 701 pts
What is the cell checking for during the G2 checkpoint?
presence of growth factors
if the chromosomes are aligned
for the receptor-ligand complex
if the DNA duplicated properly
if the cleavage furrow formed
Question 711 pts

Where is the ATP Synthase complex found for chemiosmosis in
photosynthesis?
Plasma membrane
Intermembrane space of mitochonria
Outer membrane of chloroplast
Inner membrane of chloroplast
Thylakoid membrane
Question 721 pts
Which of the following is an intracellular receptor?
Nuclear receptor
Alpha-numeric receptor
G protein-linked receptor
Protein kinase receptor
Ion channel receptor
Question 731 pts
On the body axis, where is the head?

Ventral
Dorsal
Posterior
Anterior
Rotator
Question 741 pts
If the pH drops from pH 5 to pH 2, this is
_______________________________
3x more acidic
1000x more acidic
30x more acidic
30x more basic
3x more basic
Question 751 pts
Which of the following structures are composed of microtubules?
desmosomes
collagen fibers

golgi apparatus
centrioles
cilia
Question 761 pts
In the Citric acid cycle, which of the following is oxidized to produce
NADH and CO2?
2-phosphoglycerate
alpha-ketoglutarate
succinyl-CoA
isocitrate
glucose 6-phosphate
Question 771 pts
This technique for determine gene function observes a large group of
individuals and compares their phenotypes and genotypes by
sequencing their entire genome
SDS-PAGE
CRISPR

RT-PCR
RNAi
GWAS
Question 781 pts
Potassium (K) has an atomic number of 19 and an atomic mass of
39. How many valence electrons does a K+ ion have?
Question 791 pts
Which of the following compounds are carotenoids?
carotenes
flavanones
anthocyanins
xanthophylls
isoflavones
Question 801 pts
In DNA replication, when the double-stranded DNA unwinds, what
binds to the exposed nucleotide bases to keep the two strands from
rejoining?

single-stranded binding proteins
G-protein coupled receptors
specific transcription factors
general transcription factors
histone acetylation enzymes
Question 811 pts
Lithium (Li) has an atomic number of 3 and an atomic mass of 7. How
many valence electrons does a Li+ ion have?
Question 821 pts
This biotechnology visualizes mRNA on a nitrocellulose membrane
using nucleic acid hybridization
Central blotting
Western blotting
Northern blotting
Southern blotting
Eastern blotting

Question 831 pts
parent of average height, marry and plan to have 1 child. What is the
probability that this child will have achondroplasia?
50%
25%
100%
0%
75%
Question 841 pts
In the Gibb's free energy equation, which of the following represents
change in enthalpy?
ΔG = ΔH – TΔS
ΔS
T
ΔG
ΔH

Question 851 pts
Which of the following are present in a gram-positive bacteria?
mitochondria outer membrane
lipopolysaccharide cell wall layer
peptidoglycan cell wall layer
plasma membrane
nuclear envelope
Question 861 pts
In the woods there is a population of 1000 rabbits. Fur color in these
rabbits is inherited using Mendelian genetics. The fur color gene has
two alleles; Black (B) is completely dominant and white (b) is
recessive. There are 990 black rabbits in the woods. The population
is in Hardy-Weinberg equilibrium.
How many rabbits have the Bb genotype? (answer with a numerical
whole number)
Type in a number
Question 871 pts
What color light is least useful for photosynthesis?
orange

red
green
violet
blue
Question 881 pts
In the lake, there is a population of 2000 fish. There are 3 color
varieties of fish. The color is determined through incomplete
dominance from 2 alleles (B and Y). The BB genotype has a blue
phenotype. The BY genotype has a green phenotype. The YY
genotype has a yellow phenotype. The population is in Hardy-
Weinberg equilibrium. There are 20 yellow fish. What is the
frequency of the B allele?
answer with a decimal value; 0.00
Type in a number
Question 891 pts
What is the ploidy of a normal, healthy human cell during anaphase II
of meiosis?
tetraploid
haploid
decaploid

diploid
triploid
Question 901 pts
Which phase of cell cycle does DNA replication occur?
G2 phase
M phase
G0 phase
G1 phase
S phase
Question 911 pts
For mitosis, during what phase do the sister chromatids separate?
Telophase
Interphase
Anaphase
Metaphase
Prophase

Question 921 pts
parent of average height, marry and plan to have 2 children. What is
the probably that only 1 child will have achondroplasia?
Hint: It helps to recognize the children as their own separate
persons. In other words, one has achondroplasia and the other has
average height. Try naming the children, who has achondroplasia?
12/16
4/16
8/16
3/16
16/16
6/16
1/16
2/16
0/16
9/16
Question 931 pts
Which of the following have wavelengths longer than the wavelengths
for visible light?

X-rays
Microwaves
Infrared
UV light
Gamma rays
Question 941 pts
The longest phase of the Eukaryotic cell cycle is M phase.
True
False
Question 951 pts
During the Electron Transport Chain, what is pumped from the
mitochondrial matrix into the intermembrane space?
glucose
protons
photons
neutrons

electrons
Question 961 pts
When an uncompetitive inhibitor is added to an enzyme, what
happens to the enzyme kinetics?
The Vmax is ["", "", ""] [ Select ]
The Km is ["", "", ""] [ Select ]
Question 971 pts
Perform DNA replication and create the newly synthesized DNA
strand from this DNA template
DNA template: 3' - TAG CTA GGT ATC CAG - 5'
5' - ATC GAT CCA TAG GTC - 3'
3' - AUC GAU CCA UAG GUC - 5'
5' - GCT AGC TTG CGA ACT - 3'
3' - UAG CUA GGU AUC CAG - 5'
Question 981 pts
Which of the following statements is CORRECT?

Non-polar covalent bonds occur when two atoms share electrons
equally
Ionic bonds occur when two atoms share electrons unequally
Hydrogen bonds occur when hydrogen atoms are covalently bonded
to oxygen
Due to albedo, a dark surface remains cooler than a light surface in
direct sunlight
Due to decreased molecular movement, ice is more dense than liquid
water
Question 991 pts
In a prokaryote, if the lac operator is mutated so that it is not
recognized by the lac repressor, what happens to gene expression of
the lac operon?
the enzymes for lactose metabolism are continually made
the enzymes for lactose metabolism cannot be made
this is the reason for lactose intolerance
lactose is continually synthesized by the cell
lactose cannot be synthesized by the cell
Question 1001 pts
Perform DNA replication and create the newly synthesized DNA
strand from this DNA template

DNA template: 3' - AAT GTC ATT CGC AGG - 5'
3' - AAU GUC AUU CGC AGG - 5'
5' - TTA CAG TAA GCG TCC - 3'
5' - CCT GCG AAT GAC ATT - 3'
3' - UUA CAG UAA GCG UCC - 5'
Question 1011 pts
Which genes produce the cytoplasmic determinants that are loaded
into the egg yolk by the mother's cells?
Segment polarity genes
Maternal effect genes
Hox genes
Gap genes
Pair rule genes
Question 1021 pts
If the reaction is endothermic and reduces entropy, then it is
endergonic.

True
False
Question 1031 pts
Bromine (Br) has an atomic number of 35 and an atomic mass of
80. How many electrons does a Br- ion have?
Type in a number
Question 1041 pts
Which DNA strand is indicated by J?
Lagging strand
Okazaki strand
Protein strand
Leading strand
Primer strand
Question 1051 pts
Which of the following statements regarding glycolysis are TRUE?

By the end of glycolysis, 2 FAD are reduced to form 2 FADH2
By the end of glycosis, a net of 4 ATP molecules are made
By the end of glycosis, 2 molecules of pyruvate are made
By the end of glycolysis, 2 NAD+ are oxidized to form 2 NADH
By the end of glycolysis, 2 molecules of glucose are made
Question 1061 pts
A scientist is breeding flowers. They select a true-breeding individual
with a dominant phenotype. A is completely dominant, and a is
recessive. What is a possible genotype for this flower?
AA
aa
Aa
Question 1071 pts
Below is a pedigree for an inherited disorder. Determine whether the
disorder is dominant or recessive, then answer the question. Which of the
following genotypes is possible for individual I-1?
 A = dominant allele
 a = recessive allele

aa
Aa
AA
Question 1081 pts
A plant cell placed in a hypertonic environment will experience
plasmolysis.
True

False
Question 1091 pts
Which carbon is the phosphate attached to on a DNA nucleotide?
4
2
1
5
3
Question 1101 pts
In the field, there is a population of flowers exhibiting incomplete
dominance for flower color. There are 500 red flowers (RR), 400 pink
flowers (RW), and 100 white flowers (WW). The population is NOT in
Hardy-Weinberg equilibrium.
What is the frequency of pink flowers in the population? (answer with
a decimal value; 0.00)
Type in a number

Biology 6 - Final Examination Practice Questions.docx

Recommandé

Recommandé

Contenu connexe

Similaire à Biology 6 - Final Examination Practice Questions.docx

Similaire à Biology 6 - Final Examination Practice Questions.docx (20)

Dernier

Dernier (20)

Biology 6 - Final Examination Practice Questions.docx