Worksheets2019 Fall Semester Exam Review
Total questions: 100
Worksheet time: 53mins
Name
Class
Date
1.
Somatic Cell division results in two genetically identical daughter cells.
a)
True
b)
False
2.
An ovum (egg cell) can have either an X or Y chromosome.
a)
True
b)
False
3.
A somatic cell contains 23 pairs of homologous chromosomes.
a)
True
b)
False
4.
Down syndrome is the result of a nondisjunction of chromosome 13.
a)
True
b)
False
5.
Checkpoints along the cell cycle prevent uncontrolled cell division.
a)
True
b)
False
6.
Cancer is the result of controlled cell division.
a)
True
b)
False
7.
The gradual change in the characteristics of a species over time is called...
a)
reproduction
b)
growth
c)
evolution
d)
development
8.
A response is...
a)
how organisms respond to their environment
b)
how organisms respond to stimuli
c)
how organisms regulate their internal functions
d)
how a species changes over time.
9.
Data is...
a)
a prediction of the outcome of an experiment
b)
the conclusion of an inquiry
c)
information gathered from an experiment
d)
none of these
10.
An experiment...
a)
is the prediction of the outcome of an inquiry
b)
is the procedure for testing a hypothesis
c)
is the answer to a scientific question
d)
none of these
11.
Scientific methods...
a)
are the steps for gathering information to test hypotheses
b)
are used in qualitative procedures only
c)
are used in quantitative procedures
d)
none of these
12.
A hypothesis...
a)
is a scientific observation
b)
is a set of procedures to test a prediction
c)
is a conclusion statement
d)
is a testable explanation for a question
13.
Characteristics of life include all but....
a)
growth and development
b)
reproduction
c)
ability to move
d)
homeostasis
14.
_____________ occupy the space around the nucleus.
a)
Protons
b)
Neutrons
c)
Isotopes
d)
Electrons
15.
A polar molecule is...
a)
really cold
b)
partially positive on one side and partially negative on the other side
c)
inert
d)
imaginary
16.
A covalent bond is formed when...
a)
a pair of electrons are shared by two atoms
b)
electrons are donated by an atom to another
c)
polar water molecules are near each other
d)
nitrogen bases are near each other
17.
Water is __________ and oil is ________.
a)
polar; nonpolar
b)
nonpolar; polar
c)
organic; inorganic
d)
a molecule; an element
18.
The monomers for carbohydrates are...
a)
amino acids
b)
fatty acids
c)
sugars
d)
nucleotides
19.
The monomers for proteins are...
a)
amino acids
b)
fatty acids
c)
sugars
d)
nucleotides
20.
Lipids include...
a)
fats
b)
waxes
c)
cholesterol
d)
all of these
21.
The image above can be found in ...
a)
nucleic acids
b)
carbohydrages
c)
lipids
d)
proteins
22.
An enzyme works on a(n)...
a)
co-factor
b)
another enzyme
c)
substrate
d)
inhibitor
23.
An enzyme can ______ the activation energy of a reaction.
a)
increase
b)
decrease
c)
destroy
d)
create
24.
A(n) __________ binds with a substrate at the __________ __________.
a)
co-factor; active site
b)
enzyme; active site
c)
inhibitor; reactive site
d)
enzyme; polar site
25.
Carbohydrates function as...
a)
structure and regulation
b)
genetic information
c)
a source of energy
d)
storage of energy
26.
What is the total magnification of a microscope with 10X ocular lens and a 100X objective?
a)
1000x
b)
110x
c)
90X
d)
10X
27.
Chromosomes are labeled as...
a)
C
b)
A
c)
L
d)
G
28.
Cells that lack a nucleus are called...
a)
eukaryotes
b)
prokaryotes
c)
unfortunate
d)
dead
29.
The ____________ regulates what enters and leaves the cell.
a)
cell wall
b)
cell membrane
c)
nuclear envelope
d)
cytoplasm
30.
________ are the sites for protein synthesis.
a)
Lysosomes
b)
Nuclei
c)
Mitochondria
d)
Ribosomes
31.
The structures labeled #1 are the ________.
a)
rough er
b)
smooth er
c)
ribosomes
d)
nuclei
32.
Cell walls exist in all but...
a)
plant cells
b)
fungi cells
c)
bacteria cells
d)
animals
33.
Folded membranes....
a)
increase surface area
b)
increase efficiency in cellular processes
c)
allow for connections between cellular compartments
d)
all of these
34.
Cell theory includes all but...
a)
All living things are composed of cells
b)
All cells come from pre-existing cells
c)
cells are the basic unit of an organism
d)
All organisms are multicellular
35.
The correct path of a newly made protein in the cell is...
a)
rough ER, golgi apparatus, and out of the cell
b)
golgi apparatus, rough ER and out of the cell
c)
from the plasma membrane, to rough er to the golgi apparatus
d)
none of these
36.
Diffusion results in...
a)
equilibrium of substances across the membrane
b)
the destruction of the plasma membrane
c)
unequal concentrations on both sides of the membrane
d)
none of these
37.
The diagram above is an example of...
a)
facilitated diffusion
b)
diffusion
c)
active transport
d)
osomosis
38.
In a __________ solution the cell will swell.
a)
hypertonic
b)
hypotonic
c)
isotonic
d)
hydrophobic
39.
Active transport requires...
a)
energy
b)
movement down the concentration gradient
c)
a hypertonic solution
d)
a hypotonic solution
40.
A molecule too large to move across a membrane must be transported into the cell by way of...
a)
exocytosis
b)
endocytosis
c)
facilitated transport
d)
ATP synthase
41.
If placed in a salty solution a cell will...
a)
swell
b)
shrivel
c)
stay in equilibrium
d)
none of these
42.
A plant wilts when....
a)
turgor pressure is decreased
b)
turgor pressure is increased
c)
cytolysis occurs
d)
in a hypotonic solution
43.
Photosynthesis takes place inside organelles called __________________.
a)
Mitochondria
b)
Chloroplasts
c)
Stomata
d)
Thylakoids
44.
The process of photosynthesis can be broken into
two major parts: the light- ______________reactions and the
light- ______________reactions.
two major parts: the light- ______________reactions and the
light- ______________reactions.
a)
Independent; Dependent
b)
Splitting; Absorbing
c)
Dependent; Independent
d)
Absorbing; Splitting
45.
The light-dependent reactions take place inside the chloroplasts in stacks of __________ called _________.
a)
stroma; grana
b)
grana; stroma
c)
thylakoids; grana
d)
grana; thylakoids
46.
Light from the _______is absorbed by plant pigments such as _____________________.
a)
sun; stroma
b)
sun; chloroplasts
c)
sun; chlorophyll
d)
sun; cytochrome
47.
The gas______ is produced and returned to the atmosphere.
a)
oxygen
b)
carbon dioxide
c)
water vapor
d)
nitrogen
48.
The light independent reactions are collectively called the _______________ and occur in the ____________.
a)
krebs cycle; stroma
b)
citric acid cycle; matrix
c)
calvin cycle; thylakoid membrane
d)
calvin cycle; stroma
49.
The letter representing oxygen is
a)
Y
b)
W
c)
X
d)
Z
50.
The granum is labeled...
a)
10
b)
6
c)
11
d)
5
51.
This equation sums up ________________.
a)
alcoholic fermentation
b)
lactic acid fermentation
c)
aerobic respiration
d)
photosynthesis
52.
Which label indicates region where light independent reactions occur?
a)
11
b)
6
c)
5
d)
4
53.
Plant contain mitochondria in addition to chloroplasts. This is necessary because...
a)
the mitochondria produce proteins essential to photosynthesis
b)
the ATP needed for photosynthesis is produced in the mitochondria.
c)
plants must make use of respiration when light is not available.
d)
the mitochondria are how carbon dioxide enters the plant cell
54.
Structures known as grana are stacks of _____________.
a)
stromas
b)
lumens
c)
thylakoids
d)
stomatas
55.
In glycolysis _________ is split into molecules ___ molecules of _____________.
a)
water; 2; oxygen
b)
water; 3; pyruvate
c)
glucose; 2; pyruvate
d)
water; 2; pyruvic acid
56.
The Krebs Cycle takes place in the fluid-filled area inside the inner membrane of the mitochondria known as the _______________.
a)
lumen
b)
matrix
c)
stroma
d)
stomata
57.
_____ ATP and ____ molecules of carbon dioxide are produced during kreb's cycle.
a)
4, 4
b)
34, 2
c)
2, 2
d)
2, 4
58.
Anaerobic respiration produces ____ ATP molecules.
a)
4
b)
6
c)
38
d)
2
59.
The gas produced is ______.
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
ethanol
60.
The infolding of the membranes is results in...
a)
less carbon dioxide production
b)
increased glucose production
c)
increased surface area and effiency
d)
decreased surface area and efficiency
61.
Which number indicates the location of the Kreb's cycle?
a)
1
b)
2
c)
3
d)
4
62.
The gas produced is ______.
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
ethanol
63.
Check the statement(s) that is/are incorrect.
a)
The Krebs cycle produces a maximum of 2 ATP per molecule of pyruvate
b)
The ATP produced in fermenation comes from glycolysis
c)
plant cells do not have the capacity to use glucose in cellular respiration, because they get their energy from photosynthesis.
d)
Glycolysis produces a net of 2 ATP molecules
64.
The process of glycolysis DOES NOT...
a)
produce two molecules of ATP
b)
take place in the cytoplasm (cytosol)
c)
require oxygen
d)
break glucose into pyruvate
65.
As an athlete's muscles are forced to work in the absence of enough oxygen, the muscle cells begin to produce
a)
ethyl alcohol
b)
lactic acid
c)
carbon dioxide
d)
ever larger amounts of ATP
66.
In the absence of oxygen, the cell's ability to convert the stored energy of glucose to usable ATP
a)
is limited to a maximum of 38 ATP per glucose molecule
b)
is unchanged
c)
is greatly increased
d)
is greatly decreased
67.
Which of the following bottom strands of DNA is complementary to the strand shown above?
a)
CGTAAGAACGCG
b)
TCTAGGGACCCT
c)
AGTAGGTACTCG
d)
ACTAGGTACTCT
68.
A DNA nucleotide does NOT include...
a)
a nitrogenous base such as adenine, thymine, guanine or cytosine
b)
an amino acid
c)
a deoxyribose sugar
d)
a phosphate group
69.
What part of the structure of DNA do the bold black lines on the top and the bottom of this image depict?
a)
The sugar-phosphate backbone
b)
The bases adenine, thymine, guanine and cytosine
c)
Phospholipids
d)
Proteins
70.
In which organelle can most of the DNA be found In eukaryotic cells?
a)
the nucleus
b)
the mitochondria
c)
the Golgi bodies
d)
the ribosomes
71.
The structures in the diagram labeled W are
a)
proteins
b)
deoxyribose sugars
c)
phosphates
d)
bases
72.
The structures in the diagram labeled X are
a)
proteins
b)
deoxyribose sugars
c)
bases
d)
phosphates
73.
The theory that after DNA replication each newly formed DNA molecule is one half old and one half new is called...
a)
The Antiparallel Theory
b)
The Semiconservative Theory
c)
Chargaff's Rule
d)
The rule of 2
74.
During DNA replication _______ unwinds and separates the two strands of DNA.
a)
DNA polymerase
b)
Helicase
c)
Ligase
d)
RNA polymerase
75.
Adenine forms ____ hydrogen bonds with thymine and cytosine forms _____ hydrogen bonds with guanine.
a)
1;2
b)
2;1
c)
2;3
d)
3;2
76.
Which pairings correctly depict the way in which DNA bases pair?
a)
Adenine pairs with Cytosine || Thymine pairs with Guanine
b)
Adenine pairs with Adenine || Thymine pairs with Thymine
c)
Adenine pairs with Guanine || Thymine pairs with Cytosine
d)
Adenine pairs with Thymine || Guanine pairs with Cytosine
77.
DNA is replicated in the __________ of the cell.
a)
cytoplasm
b)
ribosome
c)
nucleolus
d)
nucleus
78.
DNA replication occurs during the ______________ of the cell cycle.
a)
S-Phase
b)
G1 Phase
c)
G2 Phase
d)
Mitosis
79.
The function of mRNA is to
a)
protect the nucleus from damage by enzymes
b)
backup the genetic information in case the DNA is destroyed
c)
serve as a template for making proteins
d)
control cell division
80.
RNA is made from a DNA template in the...
a)
cytoplasm
b)
ribosome
c)
nucleus
d)
nucleolus
81.
a)
TCTAGGGACCCA
b)
UCUAGGGACCCU
c)
TCTUGGGUCCCU
d)
UGUAGGGACCCA
82.
The transfer RNA shown here would transport the amino acid
a)
(lys) lysine
b)
(try) tryptophan
c)
(pro) proline
d)
(gly) glycine
83.
In eukaryotic cells, RNA is edited before leaving the nucleus. During the editing process
a)
introns are removed from the RNA while exons remain
b)
introns and exons are removed from the RNA
c)
introns and exons trade positions within the RNA strand
d)
exons are removed from the RNA while the introns remain
84.
The structure labeled "Z" represents
a)
messenger RNA
b)
transfer RNA
c)
ribosome
d)
DNA
85.
The process of translation takes place when the mRNA is attached to
a)
a mitochondrion
b)
a ribosome
c)
the endoplasmic reticulum
d)
the nucleus
86.
A mutation in DNA coding for a protein results in a change in an mRNA codon from CAG to UAG. This change results in
a)
no change
b)
premature termination of translation
c)
insertion of the wrong amino acid
d)
the failure to terminate translation
87.
A mutation in DNA coding for a protein results in a change in an mRNA codon from UGA to UGG. This change results in
a)
the failure to terminate translation
b)
premature termination of translation
c)
insertion of the wrong amino acid
d)
no change
88.
Protein synthesis takes place in the direction 5' → 3'. What is the amino acid sequence resulting from this section mRNA?
a)
Ser - Gln - Gly - Ser
b)
Val - Pro - Tyr - Leu
c)
Phe - His - Arg - Gly
d)
Ser - Arg - Asp - Pro
89.
The structure labeled "X" represents
a)
the nucleus
b)
messenger RNA
c)
transfer RNA
d)
a ribosome
90.
A mutation in DNA coding for a protein results in a change in an mRNA codon from UAA to UAG. This change results in
a)
insertion of the wrong amino acid
b)
premature termination of translation
c)
no change
d)
the failure to terminate translation
91.
The structure labeled "Y" represents
a)
messenger RNA
b)
transfer RNA
c)
a ribosome
d)
the nucleus
92.
In prokaryotes DNA is located in the __________ whereas in eukaryotes DNA is located in the __________.
a)
nucleus; cytoplasm
b)
cytoplasm; nucleus
c)
nucleolus; cytoplasm
d)
cytoplasm; nucleolus
93.
Structure (b) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
94.
Which phase comes NEXT?
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
95.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
96.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
97.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
98.
Which sex chromosomes would indicate a typical human male?
a)
XX
b)
X
c)
XY
d)
XXY
99.
Two identical copies of a chromosome is
a)
centromere
b)
centrosome
c)
chromatid
d)
chromosome
100.
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
a)
23, 46
b)
46, 23
c)
2, 4
d)
50, 100
100 %
