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.
FALSE
B.
TRUE
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.
carbon monoxide
B.
hydrogen dioxide
C.
nitrogen dioxide
D.
carbon dioxide
Question #4
A process is referred to as aerobic if it requires ________.
A.
oxygen
B.
ATP
C.
carbon dioxide
D.
zumba
Question #5
Which of these equations describes overall equation for aerobic cellular respiration?
A.
glucose → lactic acid + ATP
B.
ATP + carbon dioxide + water → glucose + oxygen + water
C.
glucose + oxygen → carbon dioxide + water + ATP
D.
Water → Hydrogen + Oxygen
Question #6
The final electron acceptor of the electron transport chain (ETC) in aerobic respiration is ________.
A.
lactic acid
B.
ATP
C.
NAD+
D.
oxygen
Question #7
Which of the following answers lists the correct order of the stages in cellular respiration?
A.
citric acid cycle, glycolysis, electron transport
B.
glycolysis, citric acid cycle, 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.
Glycerol
C.
NADH
D.
Uracil
Question #9
Aerobic cellular respiration generates about ________ ATP from one glucose.
A.
2
B.
32
C.
6
D.
0
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.
ethyl alcohol
B.
oxygen
C.
Toblerone
D.
glucose
Question #12
Oxygen is consumed during the light (photo) reactions of photosynthesis.
A.
FALSE
B.
TRUE
Question #13
Two products of the light (photo) reactions of photosynthesis are ________.
A.
ATP and NADPH
B.
RuBP and H2O
C.
GTP and FADH
D.
NH4 and NO2
Question #14
The shorter the wavelength of visible light, the ________.
A.
higher the energy
B.
more cocoa it contains
C.
redder the color
D.
louder it sounds
Question #15
When a chlorophyll molecule absorbs a photon, one of its electrons is raised to an ________ state.
A.
lazy
B.
buffered
C.
excited
D.
balanced
Question #16
In Photosynthesis, which of the following is an electron donor for the light (photo) reactions?
A.
C6H12O6
B.
CO2
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.
citric acid cycle
B.
electron transport chain
C.
glycolysis
D.
calvin cycle
Question #18
The Calvin cycle turns ________ into ________.
A.
NH4...NO2
B.
CO2... G3P
C.
ADP... cAMP
D.
NO2... NH4
Question #19
The CORRECT sequence of stages of mitosis is ________.
A.
telophase, prophase, anaphase, metaphase
B.
prophase, metaphase, anaphase, telophase
C.
cytokinesis prophase, telophase anaphase
D.
anaphase, interphase, prophase, metaphase
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.
Sister chromatids are pulled apart
B.
The nuclear envelope reappears
C.
Chromosomes line up in the middle
D.
The nuclear envelope breaks up
Question #22
Cytokinesis typically comes immediately after ________ .
A.
prophase
B.
anaphase
C.
metaphase
D.
telophase
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.
TRUE
B.
FALSE
Question #24
Homologous chromosomes ________.
A.
always carry the same alleles of all genes
B.
are similar in size, centromere position and you receive one copy from each parent
C.
have nothing in common
D.
are a set of chromosomes that the cell received from only one parent
Question #25
In meiosis, during prophase I __________ takes place.
A.
DNA synthesis takes place
B.
The nuclear membrane reforms
C.
Sister chromatids separate
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 produces cells genetically identical to the parent cell, but meiosis does not
C.
mitosis requires crossing over, 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.
silent
B.
nonsense
C.
missense
D.
leaky
Question #28
For every cell that undergoes meiosis four haploid daughter cells are produced.
A.
TRUE
B.
FALSE
Question #29
Sexual reproduction can be advantageous because it has the potential to introduce genetic diversity into a population.
A.
TRUE
B.
FALSE
Question #30
Alleles are described as ________.
A.
environmental factors that affect gene expression
B.
homologous chromosomes
C.
alternate versions of a gene
D.
alternate phenotypes
Question #31
Assuming Mendelian genetics, which of the following describes a homozygous recessive genotype
A.
11
B.
AA
C.
Aa
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.
dominant
B.
regressive
C.
recessive
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.
phenotype
B.
genotype
C.
locus
D.
zip code
Question #35
What is the key to the recognition of incomplete dominance?
A.
The phenotype of the heterozygote falls right in the middle of the phenotypes of the homozygotes.
B.
indecisive cells
C.
The alleles affect more than one trait.
D.
The trait exhibits a continuous distribution.
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.
The alleles affect more than one trait.
C.
Multiple alleles are expressed at the same time as in blood types
D.
an understanding grounded in mutual respect.
Question #37
A single________ gene, such as the sickle cell allele, determines multiple traits.
A.
dominant
B.
lucky
C.
pleiotropic
D.
recessive
Question #38
Hemophilia is more common in men than women because men have a single copy of this chromosome.
A.
Y
B.
21
C.
2
D.
X
Question #39
During ______________ of transcription, RNA Polymerase binds to the promoter region of a gene.
A.
initiation
B.
termination
C.
elongation
D.
promotion
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.
Single stranded binding protein
B.
RNA Polymerase
C.
Helicase
D.
Ligase
Question #42
In the Electron Transport Chain of the chloroplast, hydrogen ions (protons) move by passive transport through the proton pumps.
A.
FALSE
B.
TRUE
Question #43
In the Electron Transport Chain of the mitochondria, hydrogen ions (protons) move by passive transport through ATPase Synthase.
A.
TRUE
B.
FALSE
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.
cyclic AMP... cytosine
B.
thymine... cytosine
C.
guanine... adenine
D.
cytosine... thymine
Question #46
Transcription is the process by which ________ is synthesized.
A.
DNA
B.
RNA
C.
protein
D.
starch
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.
50%
B.
100%
C.
75%
D.
25%
Question #48
The CORRECT sequence of events occurring during translation is ________.
A.
elongation, initiation, termination
B.
splicing, capping, tailing
C.
tailing, capping, splicing
D.
initiation, elongation, termination
Question #49
Which cell component below carries out translation?
A.
ribosomes
B.
lysosomes
C.
plasma membrane
D.
nucleoli
Question #50
A mutation within a gene that introduces a premature stop codon will ________.
A.
result in a longer polypeptide chain
B.
have no effect
C.
result in a shortened polypeptide chain
D.
change the location at which transcription of the next gene begins
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