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Brewer Exam Review 3
Brewer Exam Review 3
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To Help You Study for the Impossible
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1
The bond formed between nitrogenous bases
covalent
ionic
van der waals
hydrogen
2
Which of these individuals is most likely to be successful in an evolutionary sense?
an individual who cannot reproduce and never falls ill
an organism that dies after 5 days but leaves 10 offspring, that reproduce
an organism that lives 100 years and leaves 2 offspring, both reproduce
amale who mates with 20 females and fathers 1 offspring
3
What happens in the G1 phase of cell cycle?
prepare for cell division
cytokinesis
cell growth
Makes a copy of DNA
4
Where does mRNA travel to
cytoplasm
mitochondria
nucleus
cell membrane
5
Which of the following is NOT a component of RNA?
Phosphate Group
Uracil
Ribose
Double Helix
6
Which of the following statements about dehydration synthesis (dehydration reactions) is false?
Animal digestive systems utilize this process to break down food.
One monomer loses a hydrogen atom, and the other loses a hydroxyl group.
H2Ois formed as the monomers are joined.
Covalentbonds are formed between the monomers.
7
Cellular respiration is called an aerobic process because it requires
glucose
light
exercise
oxygen
8
Cytosine makes up 42% of the nucleotides in a sample of DNA. What % of the nucleotides in this sample will be guanine?
31
16
8
42
9
What is an example of a phenotype?
hybrid
homozygous
brown eyes
heterozygous
10
Cellular respiration releases energy by breaking down
monsaccharides
ATP
carbon dioxide
water
11
In countercurrent exchange materials flow in _____________ directions so that ___________ always exist.
similar....gradients
similar...concentrations
opposite....gradients
opposite...concentrations
12
The opening at the end of the esophagus is called
mitrial valve
larynx
pharynx
cardiac scphinter
13
Which of the following is a feature of plant cell division that distinguishes it from animal cell division
formation of a cell plate
formation of a cleavage furrow
lack of cytokinesis
production of four (rather than two) new cells per mitotic division
14
What is the first stage in digestion?
Absorption
Ingestion
Digestion
Elimination
15
How many gametes are formed at the end of meiosis
1
2
6
4
16
What does DNA do?
Make lipids
contain gentic info
make carbohydrates
protect the cell
17
What is a tumor?
a harmless genetic mutation
the over production of proteins
A mass of cancer cells
another name for red blood cells
18
What are gametes
body cells
a protein that regulates cell cycle
specific characteristics
sex cells
19
Which of the following is not a major activity of the stomach?
HCl secretion
mechanical digestion
nutrient absorption
mucus secretion
20
What is the TATA box responsible for?
Tells where transcription is to end
Helps you speak
Tells where translation is to take place
Tells where transcription is to begin
21
Which is the longest phase of mitosis
Metaphase
prophase
telophase
anaphase
22
DNA is a(n)
nucleic acid
lipid
carbohydrate
protein
23
Which is not a body system
Endocrine
Eloquin
Excretory
Integumentary
24
What fraction of the offspring of the cross AaBb x AaBb would show the dominant phenotypes for both genes?
1/16
12/16
9/16
6/16
25
CO2 enters and O2 exits a leaf via
stroma
grana
thylakoids
stomata
26
What is another name for body cells
autonomic
apoptic
somatic
gametes
27
What is the correct order for the movement of sperm?
Testes, epididymis, vas deferens, ejaculatory tract, urethra
Testes, epididymis, vas deferens, urethra, ejaculatory tract
Epididymis, testes, vas deferens, urethra, ejaculatory tract
Epididymis, testes, vas deferens, ejaculatory tract, urethra
28
Each enzyme can speed up only one type of reaction. This specificity is due to
thepH of the surrounding medium.
thetemperature of the surrounding medium
theshapeandchemical properties of the enzyme
thepermanent binding of the enzyme-substrate complex.
29
Which of the following is not true of a codon?
It consists of three nucleotides
Itnever codes for more than one amino acid
Itmay code for the same amino acid as another codon.
Itnever codes for more than one amino acid
30
What is the central dogma of molecular Biology
DNA-Transformation-RNA-Translation-Protein
DNA-Translation-RNA-Transcription-Protein
RNA-Transportation-DNA-Dictation-Protein
DNA-Transcription-RNA-Translation-Protein
31
What is the third phase of mitosis?
anaphase
telophase
metaphase
interphase
32
IF DNA says ATGCGCATC, what is the TRNA?
UACGCGUAG
AUGCGCAUC
33
What does the cell membrane do during cytokinesis
pinch
break
flatten
expand
34
Which of the following is (are) true of natural selection?
involves differences in reproductive success
results in descent with modification
all of the above
requires genetic variation
35
Which of these does RNA have that DNA doesn't?
Uracil
Uracit
Guanine
Thymine
36
ATP and NADPH
provideenergy to Photosystem I and Photosystem II.
areproducts of the Calvin cycle.
power sugar synthesis during the Calvin cycle.
are used in the ETC to pump H+ into the thylakoid space.
37
Which part of the brain is responsible for planning
temporal
occipital
parietal
frontal
38
What structure serves as a passageway for both air and food?
trachea
pharynx
bronchus
larynx
39
As surface area increases, the ratio of surface area to volume
increases
stays the same
decreases
stops existing
40
Which are responsible for mechanical digestion
teeth
esophagus
large intestine
small intestine
41
During cellular respiration, the energy in glucose
isreleased all at once.
becomes stored in molecules of ammonia.
isused to manufacture oxygen.
is carried by electrons
42
The leading strand has nucleotides added to the DNA continuously
False
True
43
Which of the following characteristics of living things best explains why some birds fly south for the winter?
Living things are made up of units called cells.
Living things respond to their environment.
Living things are based on a universal genetic code.
Livingthings grow and develop
44
In which step do homologous pairs get pulled apart from each other
prophase 1
anaphase I
anaphase II
anaphase
45
If a cell has 36 chromosomes before mitosis how many will it have after
72
100
18
36
46
Glycolysis requires ______ to get going
1 ATP
NAD+
2 ATP
4 ATP
47
What enzyme unzips DNA?
exonuclease
primase
ligase
helicase
48
Which of the following is part of the light reaction?
reduction of carbon dioxide
regeneration of NADP+
carbon fixation
formation of waste products in the form of O2
49
Which of the following is not a stop codon?
UUA
UGA
UAA
UAG
50
DNA is packaged into what before mitosis
nucleosomes
proteins
chromosomes
chromatin
51
What makes up the backbone of DNA
deoxyribose and phosphate group
amino acids and proteins
nucleic acids and RNA
nitrogenous bases and hydrogen bonds
52
When do chromosomes become visible
interphase
metaphase
prophase
cytokinesis
