Biology 122 - Introduction to Biology » Summer 2021 » Exam 2
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Question #1
Based on the work that you did in the Photosynthesis lab, you observed that blue light (450 nm) is absorbed poorly by chlorophyll.
A.
TRUE
B.
FALSE
Question #2
The pond plant from your cell respiration lab (Elodea) is placed in a test tube containing water and phenol red and is wrapped in aluminum foil to block all light. After two hours you would expect the color of the phenol red to be ___________.
A.
red
B.
black
C.
yellow
D.
blue
Question #3
In the yeast fermentation experiment, what gas was trapped in the balloon covering the flask that contained yeast, glucose and warm water?
A.
nitrogen dioxide
B.
carbon monoxide
C.
hydrogen dioxide
D.
carbon dioxide
Question #4
A process is referred to as aerobic if it requires ________.
A.
oxygen
B.
ATP
C.
zumba
D.
carbon dioxide
Question #5
Which of these equations describes overall equation for aerobic cellular respiration?
A.
glucose + oxygen → carbon dioxide + water + ATP
B.
Water → Hydrogen + Oxygen
C.
glucose → lactic acid + ATP
D.
ATP + carbon dioxide + water → glucose + oxygen + water
Question #6
The final electron acceptor of the electron transport chain (ETC) in aerobic respiration is ________.
A.
NAD+
B.
ATP
C.
oxygen
D.
lactic acid
Question #7
Which of the following answers lists the correct order of the stages in cellular respiration?
A.
glycolysis, citric acid cycle, electron transport
B.
citric acid cycle, glycolysis, electron transport
C.
citric acid cycle, electron transport, glycolysis
D.
electron transport, glycolysis, citric acid cycle
Question #8
The Citric Acid Cycle produces this important high energy electron donor/shuttle that is used to power the Electron Transport Chain proton pumps.
A.
Glycine
B.
Uracil
C.
NADH
D.
Glycerol
Question #9
Aerobic cellular respiration generates about ________ ATP from one glucose.
A.
2
B.
32
C.
0
D.
6
Question #10
Which of the following metabolic pathways is common to both aerobic and anaerobic respiration?
A.
the citric acid cycle
B.
calvin cycle
C.
glycolysis
D.
the electron transport chain
Question #11
What fermentation waste product do yeast produce under anaerobic conditions?
A.
oxygen
B.
Toblerone
C.
glucose
D.
ethyl alcohol
Question #12
Oxygen is consumed during the light (photo) reactions of photosynthesis.
A.
TRUE
B.
FALSE
Question #13
Two products of the light (photo) reactions of photosynthesis are ________.
A.
ATP and NADPH
B.
GTP and FADH
C.
RuBP and H2O
D.
NH4 and NO2
Question #14
The shorter the wavelength of visible light, the ________.
A.
more cocoa it contains
B.
redder the color
C.
louder it sounds
D.
higher the energy
Question #15
When a chlorophyll molecule absorbs a photon, one of its electrons is raised to an ________ state.
A.
lazy
B.
balanced
C.
buffered
D.
excited
Question #16
In Photosynthesis, which of the following is an electron donor for the light (photo) reactions?
A.
CO2
B.
C6H12O6
C.
H2O
D.
NADPH
Question #17
Which of the following is found in both aerobic cellular respiration and in the light reactions of photosynthesis?
A.
calvin cycle
B.
electron transport chain
C.
glycolysis
D.
citric acid cycle
Question #18
The Calvin cycle turns ________ into ________.
A.
NH4...NO2
B.
NO2... NH4
C.
CO2... G3P
D.
ADP... cAMP
Question #19
The CORRECT sequence of stages of mitosis is ________.
A.
prophase, metaphase, anaphase, telophase
B.
telophase, prophase, anaphase, metaphase
C.
anaphase, interphase, prophase, metaphase
D.
cytokinesis prophase, telophase anaphase
Question #20
During metaphase, ________.
A.
the nuclear envelope breaks up
B.
centromeres divide
C.
chromosomes line up in the middle of the cell
D.
sister chromatids separate
Question #21
Which of these events occurs during anaphase?
A.
The nuclear envelope breaks up
B.
Sister chromatids are pulled apart
C.
Chromosomes line up in the middle
D.
The nuclear envelope reappears
Question #22
Cytokinesis typically comes immediately after ________ .
A.
prophase
B.
anaphase
C.
telophase
D.
metaphase
Question #23
During Metastasis, cancer cells stay localized to the original site of tumor formation and never spread throughout the body via the circulatory system.
A.
FALSE
B.
TRUE
Question #24
Homologous chromosomes ________.
A.
always carry the same alleles of all genes
B.
are a set of chromosomes that the cell received from only one parent
C.
have nothing in common
D.
are similar in size, centromere position and you receive one copy from each parent
Question #25
In meiosis, during prophase I __________ takes place.
A.
DNA synthesis takes place
B.
Sister chromatids separate
C.
The nuclear membrane reforms
D.
Crossing-over
Question #26
One difference between mitosis and meiosis is ________.
A.
mitosis produces more daughter cells for each division than meiosis
B.
mitosis requires crossing over, but meiosis does not
C.
mitosis produces cells genetically identical to the parent cell, but meiosis does not
D.
mitosis produces haploid cells, but meiosis produces diploid cells
Question #27
A _____________mutation results in one amino acid being swapped with a different amino acid.
A.
nonsense
B.
silent
C.
leaky
D.
missense
Question #28
For every cell that undergoes meiosis four haploid daughter cells are produced.
A.
FALSE
B.
TRUE
Question #29
Sexual reproduction can be advantageous because it has the potential to introduce genetic diversity into a population.
A.
FALSE
B.
TRUE
Question #30
Alleles are described as ________.
A.
alternate versions of a gene
B.
environmental factors that affect gene expression
C.
homologous chromosomes
D.
alternate phenotypes
Question #31
Assuming Mendelian genetics, which of the following describes a homozygous recessive genotype
A.
AA
B.
aa
C.
11
D.
Aa
Question #32
Mendel crossed purebred purple-flowered plants (PP) with purebred white-flowered plants (pp), and all of the resulting offspring produced purple flowers. The Purple (P) allele is _________________ in relation to the white (p) allele.
A.
regressive
B.
recessive
C.
dominant
D.
excessive
Question #33
In humans, the presence or absence of dimples is a trait controlled by a single gene. What is the genotype of an individual who is heterozygous for dimples?
A.
DD
B.
dd
C.
55
D.
Dd
Question #34
What name is given to the specific location of a gene on a chromosome?
A.
locus
B.
phenotype
C.
zip code
D.
genotype
Question #35
What is the key to the recognition of incomplete dominance?
A.
The trait exhibits a continuous distribution.
B.
The alleles affect more than one trait.
C.
The phenotype of the heterozygote falls right in the middle of the phenotypes of the homozygotes.
D.
indecisive cells
Question #36
What is the key to the recognition of codominance?
A.
The phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes.
B.
Multiple alleles are expressed at the same time as in blood types
C.
an understanding grounded in mutual respect.
D.
The alleles affect more than one trait.
Question #37
A single________ gene, such as the sickle cell allele, determines multiple traits.
A.
recessive
B.
dominant
C.
lucky
D.
pleiotropic
Question #38
Hemophilia is more common in men than women because men have a single copy of this chromosome.
A.
X
B.
Y
C.
21
D.
2
Question #39
During ______________ of transcription, RNA Polymerase binds to the promoter region of a gene.
A.
initiation
B.
promotion
C.
termination
D.
elongation
Question #40
Aerobic Respiration produce more ATP than Fermentation (Anaerobic Respiration) because of the availability of the electron transport chain (ETC) and oxygen.
A.
FALSE
B.
TRUE
Question #41
________________ is responsible for unwinding a DNA double helix during DNA replication.
A.
Ligase
B.
RNA Polymerase
C.
Single stranded binding protein
D.
Helicase
Question #42
In the Electron Transport Chain of the chloroplast, hydrogen ions (protons) move by passive transport through the proton pumps.
A.
TRUE
B.
FALSE
Question #43
In the Electron Transport Chain of the mitochondria, hydrogen ions (protons) move by passive transport through ATPase Synthase.
A.
FALSE
B.
TRUE
Question #44
If a brown-eyed man and a blue-eyed woman (bb) have a blue-eyed daughter (bb) then that means that the man is heterozygous (Bb) for the eye color alleles.
A.
FALSE
B.
TRUE
Question #45
In a DNA double helix, adenine (A) pairs with ________ and guanine (G) pairs with ________.
A.
guanine... adenine
B.
cyclic AMP... cytosine
C.
cytosine... thymine
D.
thymine... cytosine
Question #46
A.
protein
B.
starch
C.
RNA
D.
DNA
Question #47
Assuming Mendelian genetics for the pea plants crossed below. What percent of the offspring would be predicted to have white flowers? Pp x Pp P= purple, p = white
A.
75%
B.
25%
C.
50%
D.
100%
Question #48
The CORRECT sequence of events occurring during translation is ________.
A.
elongation, initiation, termination
B.
tailing, capping, splicing
C.
initiation, elongation, termination
D.
splicing, capping, tailing
Question #49
Which cell component below carries out translation?
A.
ribosomes
B.
nucleoli
C.
plasma membrane
D.
lysosomes
Question #50
A mutation within a gene that introduces a premature stop codon will ________.
A.
change the location at which transcription of the next gene begins
B.
have no effect
C.
result in a shortened polypeptide chain
D.
result in a longer polypeptide chain
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