WorksheetsTest 3 review
Total questions: 165
Worksheet time: 2hrs 6mins
Name
Class
Date
1.
The energy currency used by cells is ________.
a)
AMP
b)
Adenosine
c)
ADP
d)
ATP
2.
What is the name of the process that helps make beer and wine?
a)
Alcoholic fermentation
b)
Fermentation
c)
Glycolysis
d)
Lactic Acid fermentation
3.
A reducing chemical reaction ________.
a)
adds an electron to the substrate
b)
removes a hydrogen atom from the substrate
c)
is a catabolic reaction
d)
reduces the compound to a simpler form
4.
During the second half of glycolysis, what occurs?
a)
Glucose becomes fructose
b)
ATP is used up
c)
ATP is made
d)
Fructose is split in two
5.
Which of the following fermentation methods can occur in animal skeletal muscles?
a)
mixed acid fermentation
b)
lactic acid fermentation
c)
alcohol fermentation
d)
propionic fermentation
6.
Cellular respiration occurs in which organelle?
a)
nucleus
b)
chloroplast
c)
ribosome
d)
mitochondria
7.
Which statement best compares aerobic and anaerobic respiration?
a)
More water is generated during anaerobic respiration than during aerobic respiration
b)
More oxygen is generated during anaerobic respiration than during aerobic respiration
c)
Less ATP is generated during anaerobic respiration than during aerobic respiration
d)
Less lactic acid is generated during anaerobic respiration than during aerobic respiration
8.
What two main products result from photosynthesis?
a)
sugars/carbohydrates and oxygen
b)
oxygen and carbon dioxide
c)
sugars/carbohydrates and carbon dioxide
d)
chlorophyll and oxygen
9.
Which statement correctly describes carbon fixation?
a)
the formation of RuBP from G3P molecules
b)
the conversion of CO2 into an organic compound
c)
the production of carbohydrate molecules from G3P
d)
the use of RuBisCO to form 3-PGA
10.
In which compartment of the plant cell do the light independent reactions of photosynthesis take place?
a)
outer membrane
b)
thylakoid
c)
mesophyll
d)
stroma
11.
Which statement about thylakoids in eukaryotes is not correct?
a)
Thylakoids are assembled into stacks
b)
Thylakoids exist as a maze of folded membranes.
c)
The space surrounding thylakoids is called stroma
12.
Predict the end result if a chloroplast’s light independent enzymes developed a mutation that prevented them from activating
a)
Carbon dioxide depletion
b)
ATP and NADPH accumulation
c)
Water accumulation
d)
GA3P accumulation
13.
Which of the following structures is not a component of a photosystem?
a)
reaction center
b)
pigment molecule
c)
ATP synthase
d)
primary electron acceptor
14.
Three of the same species of plant are each grown under a different colored light for the same amount of time. Plant A is grown under blue light, Plant B is grown under green light, and Plant C is grown under orange light. Assuming the plants use only chlorophyll a and chlorophyll b for photosynthesis, what would be the predicted order of the plants from most growth to least growth?
a)
A, C, B
b)
B, A, C
c)
C, A, B
d)
A, B, C
15.
Plants containing only chlorophyll b are exposed to radiation with the following wavelengths: 10nm (x-rays), 450nm (blue light), 670nm (red light), and 800nm (infrared light). Which plants harness the most energy for photosynthesis?
a)
X-ray irradiated plants
b)
Blue light irradiated plants
c)
Red light irradiated plants
d)
Infrared irradiated plants
16.
Which molecule must enter the Calvin cycle continually for the light-independent reactions to take place?
a)
RuBisCO
b)
CO2
c)
3-PGA
d)
RuBP
17.
Which order of molecular conversions is correct for the Calvin cycle?
a)
RuBisCO → CO2 → RuBP → G3P
b)
RuBP + CO2 → [RuBisCO] 3-PGA → G3P
c)
RuBP + CO2 → [RuBisCO] 3-PGA → G3P
d)
RuBP + G3P → 3-PGA → sugar
18.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
19.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
20.
What gas is released by plants during photosynthesis?
a)
nitrogen
b)
carbon dioxide
c)
oxygen
d)
hydrogen
21.
Where are the proteins that carry out the light-dependent reactions located?
a)
thylakoid membrane
b)
stroma
c)
thylakoid space
d)
cytoplasm
22.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
23.
The reactants of photosynthesis are
a)
sugar and water.
b)
sugar and oxygen.
c)
carbon dioxide and water.
d)
carbon dioxide and oxygen.
24.
Where does the Calvin Cycle occur?
a)
thylakoid
b)
stroma
c)
lumen
d)
mitochondria
25.
Use the diagram to answer the question. In order the make an ADP molecule, the bonds between ______ must be broken.
a)
A and B
b)
A and C
c)
B and C
d)
C and D
26.
What supplies the replacement electrons when chlorophyll passes their electrons to the ETC?
a)
oxygen
b)
water
c)
glucose
d)
rubisco
27.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
28.
Why is photosynthesis an important process for life?
a)
it creates oxygen for animals to breathe
b)
it becomes a food source for other organisms
c)
it creates glucose for plants to use as energy
d)
all of these are correct
29.
How do plant leaves get the carbon dioxide needed for photosynthesis?
a)
it is absorbed by the roots
b)
it is made during the Calvin cycle
c)
it enters through the stomata in the leaves
d)
it enters through the flowers
30.
Adding a phosphate group to make ATP ______ energy.
a)
stores
b)
releases
31.
ATP and NADPH made during the light-independent reactions
a)
give electrons to ATP synthase
b)
give electrons to chlorophyll
c)
are used to make sugar in the Calvin cycle
d)
combine with oxygen to make glucose
32.
Chlorophyll absorbs all of these wavelengths of light well EXCEPT
a)
red
b)
blue
c)
violet
d)
green
33.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
reflects green light
34.
Electron transport chain proteins using energy from moving electrons to pump ________ into the thylakoid space.
a)
H+ ions
b)
phosphates
c)
glucose
d)
Oxygen atoms
35.
During the light-dependent reactions, the final electron acceptor at the end of the ETC is
a)
NADP+
b)
chlorophyll
c)
ATP synthase
d)
glucose
36.
Place where H+ ions build up during the light-dependent reactions.
a)
A
b)
B
c)
C
d)
D
37.
The movement of _____ through ATP synthase produces ATP.
a)
electrons
b)
H+ ions
c)
water
d)
glucose
38.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
39.
Chlorophyll absorbs a higher percentage of _____ and _______ light.
a)
purple and green
b)
red and blue
c)
black and orange
d)
yellow and green
40.
Which statement about photosynthesis is correct?
a)
Plants get the energy they need for photosynthesis from water.
b)
Plants get the energy they need for photosynthesis from soil.
c)
Plants get the energy they need for photosynthesis from sunlight.
d)
Plants do not require energy to perform photosynthesis.
41.
What are the products of photosynthesis?
a)
Carbon dioxide and water
b)
Carbon dioxide and oxygen
c)
Glucose and oxygen
d)
Glucose and water
42.
What pigment absorbs sunlight for photosynthesis?
a)
chloroplast
b)
thylakoid
c)
grana
d)
chlorophyll
43.
What is the function of NADPH and ATP?
a)
They absorb light
b)
They power the light-dependent reactions
c)
They are light-reflecting pigments
d)
They are short term energy carriers
44.
Where do the light-dependent reactions occur?
a)
thylakoid membrane
b)
stroma
c)
mesophyll
d)
mitochondria
45.
Which of the following is NOT a product of the light-dependent reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
46.
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?
a)
The light-dependent stage
b)
The light-independent stage (The Calvin Cycle)
c)
The electron transport chain
d)
ATP formation
47.
How many sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?
a)
1
b)
3
c)
6
d)
12
48.
Which of the following best describes photosynthesis?
a)
Photosynthesis converts radiant energy into chemical energy.
b)
Photosynthesis produces carbohydrates.
c)
Plants need sunlight, carbon dioxide, water, nutrients, and chlorophyll to complete photosynthesis.
d)
Plants use chlorophyll, water, and carbon dioxide to make sugar.
49.
In which organelle does photosynthesis occur?
a)
mitochondria
b)
stomata
c)
xylem
d)
chloroplast
50.
Whch pigments absorbs green and blue light but reflects orange and red light?
a)
Carotenoids
b)
Chlorophylls
51.
Which product is produced during the light-dependent reactions?
a)
water
b)
oxygen
c)
glucose
d)
carbon dioxide
52.
Which of the following is considered a waste product of photosynthesis?
a)
glucose
b)
oxygen
c)
carbon dioxide
d)
sunlight
54.
Animal cells do not have chloroplasts.
a)
TRUE
b)
FALSE
54.
Animal cells do not have chloroplasts.
a)
TRUE
b)
FALSE
55.
Light energy is used to
a)
split water into H and O
b)
weld C, H and O together
c)
make water
56.
What is the purpose of photosynthesis?
a)
make glucose
b)
make ATP
c)
make light
d)
release carbon dioxide
57.
What is the gas we breath out that plants use for photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
58.
How can photosynthesis be related to cellular respiration?
a)
What's produced (made) by one is needed (the reactants) for the other
b)
They both produce the same products
c)
They both have the same reactants (need the same things)
d)
These 2 processes have nothing in common
59.
Aerobic respiration occurs in which organelle?
a)
chloroplast
b)
mitochondrion
c)
ribosome
d)
nucleus
60.
How does the amount of energy resulting from fermentation compare with that of aerobic respiration?
a)
Aerobic respiration results in less energy.
b)
Aerobic respiration results in more energy.
c)
Each process results in equal amounts of energy.
d)
Each process results in variable amounts of energy.
61.
What will most likely be the result if all of the mitochondria are removed from a plant cell?
a)
It will be unable to carry out respiration.
b)
It will lose water through osmosis.
c)
It will break down the ribosomes in the cell.
d)
It will be unable to photosynthesize
62.
What is the function of the organelle identified by #3?
a)
produce sugars
b)
direct protein synthesis
c)
produce energy
d)
trap sunlight
63.
Aerobic respiration occurs in the presence of ______________.
a)
nitrogen
b)
carbon dioxiide
c)
oxygen
d)
carbon monoxide
64.
This organelle could likely be found in
a)
plant cells only.
b)
animal cells only.
c)
prokaryotes only.
d)
plant and animal cells.
65.
Muscle cells that are used during heavy exercise often do not receive enough oxygen for energy production. What waste product builds up in muscle cells resulting in soreness?
a)
water
b)
alcohol
c)
carbon dioxide
d)
lactic acid
66.
Which of the following is the correct equation for aerobic cellular respiration?
a)
6CO2 + 6H2O ---> C6H12O6 + 6O2 + ATP
b)
6O2 + C6H12O6 ---> 6H2O + 6CO2 + ATP
c)
C6H12O6 + 6H2O ---> 6CO2 + 6O2 + ATP
d)
6O2 + 6H2O ---> C6H12O6 + 6CO2 + ATP
67.
What gas is causing the balloons to inflate?
a)
oxygen
b)
nitrogen
c)
carbon dioxide
d)
carbon monoxide
68.
What energy-yielding process is occurring in the test tube with the orange balloon filled with yeast, water, and sugar?
a)
lactic acid fermentation
b)
alcoholic fermentation
c)
aerobic respiration
d)
photosynthesis
69.
What is the name of the 1st step of cellular respiration?
a)
Glycolysis
b)
Kreb's Cycle
c)
ETC
d)
Anaerobic respiration
70.
Where does glycolysis take place?
a)
Cytoplasm
b)
Stroma
c)
Thylakoid
d)
Mitochondria
71.
Where does aerobic respiration take place?
a)
Cytoplasm
b)
Mitochondria
c)
Stroma
d)
Thylakoid
72.
Which type of respiration occurs without the presence of oxygen?
a)
Aerobic
b)
Anaerobic
73.
What are the two reactants of cellular respiration?
a)
C6H12O6 & 6CO2
b)
6 CO2 & 6H2O
c)
C6H12O6 & 6O2
d)
6CO2 & 6O2
74.
Glucose is broken down during which process?
a)
Calvin cycle
b)
Glycolysis
c)
Krebs Cycle
d)
Photosynthesis
75.
Along with 2ATP, what is produced during glycolysis?
a)
6CO2
b)
6O2
c)
C6H12O6
d)
2 pyruvate
76.
___ produces the most ATP.
a)
Aerobic respiration
b)
Anaerobic respriation
c)
Glycolysis
d)
Photosynthesis
77.
What are the two produces of aerobic respiration?
a)
Glucose & oxygen
b)
Carbon dioxide & water
c)
Lactic acid
d)
Carbon monoxide
78.
The overall goal of cellular respiration is to make:
a)
Glucose
b)
ATP
c)
Oxygen
d)
Water
79.
Which is a product of Kreb's Cycle?
a)
Carbon dioxide
b)
Glucose
c)
Pyruvate
d)
Water
80.
Which is a product of the ETC?
a)
Carbon dioxide
b)
Glucose
c)
Oxygen
d)
Water
81.
This is referred to as the energy currency of the cell
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
82.
This molecule contains three phosphate groups
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
83.
This molecule contains two phosphate groups
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
84.
This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.
a)
photosynthesis
b)
light-independent reaction
c)
cellular respiration
d)
light-dependent reaction
85.
Glycolysis
a)
does not need oxygen
b)
does need oxygen
86.
Which is not a waste product of cellular respiration?
a)
Water
b)
Heat
c)
Carbon Dioxide
d)
Oxygen
87.
What is the major difference in ADP and ATP?
a)
ADP has less energy because it is composed of only two phospates, ATP has more energy because it is composed of three phosphates.
b)
ADP has more energy because it is composed of two phosphates, ATP has less energy because it is composed of three phosphates.
c)
ADP is not a real source of energy because there are no double bonds.
d)
ATP can be compared to an uncharged battery because it does not have a lot of energy.
88.
Only plants go through the process of photosynthesis. What types of organisms undergo cellular respiration?
a)
Only Plants
b)
Only Animals
c)
Both Plants and Animals
d)
All Living Things
89.
Cellular respiration is the ...........
a)
process that releases energy by breaking down glucose and other food moleucules in the presence of oxygen.
b)
process of trapping sunlight to make glucose and oxygen.
c)
a process that only plants use to make food.
d)
a process that animals use to make food.
90.
The two types of cellular respiration are: ____________ and ____________.
a)
aerobic respiration: oxygen required
anaerboic respiration: no oxygen needed
anaerboic respiration: no oxygen needed
b)
aerobic respiration: no oxygen required
anaerboic respiration: no oxygen
anaerboic respiration: no oxygen
c)
light independent and light dependent reaction
d)
ATP or ADP
91.
Which of the following steps in cellular respiration is aerobic and DOES NOT happen in the cytoplasm?
a)
Glycolysis
b)
Alcohol Fermentation
c)
Lactic Acid Fermentation
d)
Krebs Cycle
92.
DNA is replicated during the ______ phase of the cell cycle.
a)
G1
b)
Synthesis
c)
G2
d)
G0
93.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
94.
Structure B is pointing to the _____.
a)
chromosome
b)
centromere
c)
DNA
d)
chromatid
95.
Structure C is pointing to one ____.
a)
sister chromatid
b)
chromosome
c)
centromere
d)
gene
96.
How many chromosomes are normally found in human body cells?
a)
46
b)
23
c)
26
d)
44
97.
What is the name of the structure labeled X?
a)
Centriole
b)
Centrosome
c)
Chromatid
d)
Chromosome
99.
Identify the phase of mitosis.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
99.
Identify the phase of mitosis.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
100.
Which phase comes NEXT?
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
101.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
102.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
103.
a)
Anaphase
b)
Cytonkinesis
c)
Interphase
d)
Prophase
104.
a)
Cytokinesis
b)
Anaphase
c)
Telophase
d)
Prophase
105.
In which cell below would a student likely observe a cell plate during mitosis?
a)
rat muscle cell
b)
alligator stomach cell
c)
pea leaf cell
d)
human lung cell
106.
Centrioles would most likely be found in ______.
a)
geranium leaf cells
b)
mushroom spore cells
c)
E. coli bacterial cells
d)
grasshopper muscle cells
107.
The process by which the nuclear material is divided equally between two new cells
a)
mitosis
b)
cancer
c)
spindle
d)
centromere
108.
Name the phase:
a)
Anaphase
b)
Telophase
c)
Metaphase
d)
Prophase
109.
What is the next phase of mitosis?
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
110.
Name the previous phase.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
111.
Name the previous phase.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
112.
Name the previous phase.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
113.
Name the previous phase.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
114.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
115.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
116.
The stages of mitosis in order
a)
Metaphase, Anaphase, Prophase, Telophase
b)
Prophase, Anaphase, Metaphase, Telophase
c)
Prophase, Metaphase, Anaphase, Telophase
d)
Anaphase, Prophase, Telophase, Metaphase
117.
The phase in mitosis where chromosomes move away and are pulled apart by spindles to opposite sides of the cell.
a)
prophase
b)
anaphase
c)
metaphase
d)
telephase
118.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
119.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
120.
The time between cell divisions in the life cycle of the cell is called
a)
anaphase
b)
interphase
c)
prophase
d)
metaphase
121.
Where does a cell contain it's genetic material?
a)
nucleus
b)
nucleolus
c)
cytoskeleton
d)
golgi
122.
The threadlike structure of DNA and protein that contains genetic information
a)
Chromosome
b)
Chromatin
c)
Chromatid
d)
Centriole
123.
Choose the correct definition for telophase:
a)
the final phase of cell division in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
b)
the first phase of cell division in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
c)
the final phase of interphase in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
d)
the first phase of interphase in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
124.
Choose the correct answer for the term anaphase:
a)
the stage of meiotic or mitotic cell division in which the chromosomes first appear as sister chromatids
b)
the stage of meiotic or mitotic cell division in which the chromosomes move toward one another & to the center of the cell.
c)
the stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle.
d)
the stage of meiotic or mitotic cell division in which the chromosomes and spindles firs attach
125.
How many phases are there in the Mitosis Cycle?
a)
6
b)
3
c)
5
d)
89
126.
What is the phase where the chromosome align in the cell
a)
Anaphase
b)
Metaphase
c)
Telophase
d)
Cytokinesis
127.
Nuclear membrane forms around chromosomes and begins to separate.
a)
Anaphase
b)
Telophase
128.
Chromosomes are copied.
a)
Interphase
b)
Prophase
129.
Chromatids separate and move to opposite sides.
a)
Telophase
b)
Anaphase
130.
Nuclear membrane dissolves; paired chromatids align at the cell’s middle.
a)
Cytokinesis
b)
Metaphase
131.
Cell pinches into two.
a)
Telophase
b)
Cytokinesis
132.
The longest phase of the cell cycle
a)
prophase
b)
interphase
c)
metaphase
d)
mitosis
133.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
134.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
135.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
136.
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
137.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
138.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
139.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
140.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
141.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
142.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
143.
Goes through P.M.A.T two rounds
a)
Mitosis
b)
Meiosis
c)
Osmosis
d)
Transcription
144.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
145.
If a somatic cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
146.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
147.
Which of these cells would be produced through meiosis?
a)
skin cells
b)
liver cells
c)
brain cells
d)
sperm cells
148.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
149.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
150.
What is another reason we need meiosis?
a)
So the offspring has genes from both parents
b)
So the offspring has genes from one parent
c)
So the offspring has genes from neither parents
d)
So the offspring makes its own genes
151.
Which of the following produces identical nuclei in cells?
a)
pollination
b)
mitosis
c)
osmosis
d)
fertilization
152.
Which statement correctly describes meiosis?
a)
cells divide only once
b)
meiosis does not occur in reproductive cells
c)
the cells produced at the end of meiosis are genetically identical to the parent cell
d)
The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell
153.
Which of the following best describes meiosis?
a)
It is carried out in all tissues theat require cell replacement
b)
It occurs only in cells in the reproductive structures of an organism
c)
It happens in all of the tissues except the brain and spinal cord
d)
It is the first stage of mitosis
154.
Which of the following represents chromosome # during fertilization?
a)
n+n=2n
b)
n=n
c)
2n=n+n
d)
2n=2n
155.
Which of the following best explains why the chromosome number is an even number in organisms?
a)
It is only by coincidence, many organisms have an odd number
b)
The diploid number is always even so that when mitosis occurs each cell gets the same number of chromosmes
c)
The diploid chromosome number represents pairs of chromosomes, one from ech parent, so that it is always an even number
d)
Chromosomes double very time the cell divides, so after the first division, the number is always even
156.
Based only on the sex chromosomes in typical human egg and sperm cells at fertilization, the probability of producing a female is
a)
25%
b)
50%
c)
75%
d)
90%
157.
If an intestinal cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
158.
Mitosis is essential to life because it
a)
contains four stages for gametes
b)
maintains genetic continuity from one generation to the next
c)
controls cell functions
d)
provides energy for cell
159.
Body cells of fruit flies contain 8 chromosomes. Scientists used studies of flies to discover how egg and sperm are formed. What did they observe?
a)
Body cell of offspring flies have 16 chromosomes
b)
Sperm cells have 8 chromosomes
c)
Egg cells have 4 chromosomes
d)
Body cells of offspring have 4 chromosomes
160.
What is one advantage of sexual reproduction?
a)
offspring are identical to parents
b)
offspring are resistant to viruses
c)
offspring are born live, rather than from eggs
d)
offspring inherit a wider variety of genetic information
161.
How is the process used to produce sex cells different from the process used to produce body cells?
a)
only the process used to make sex cells uses spindle fibers
b)
only the process used to make sex cells produces haploid cells
c)
only the process used to make sex cells can result in mutations
d)
only the process used to make sex cells requires DNA replication
162.
How many times in meiosis does the cell divide?
a)
2
b)
4
c)
3
d)
1
163.
Which process produces the most variation within a species?
a)
mitosis
b)
cloning
c)
meiosis
d)
asexual reproduction
164.
This produces cells for growth and repair.
a)
mitosis
b)
meiosis
165.
This produces sex cells.
a)
mitosis
b)
meiosis
100 %
