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WorksheetsSemester One 2016-17 Practice Test
Total questions: 190
Worksheet time: 2hrs 59mins
Name
Class
Date
1.
The region between the cell membrane and the nucleus is called the
a)
cytoplasm
b)
Golgi Body
c)
chromosomes
d)
lysosomes
2.
_____________ are tiny cell structures that carry out specific functions within the cell
a)
bacteria
b)
cells
c)
organelles
3.
This is the control center of the cell. This controls the main activities of the cell.
a)
chloroplasts
b)
nucleus
c)
ribosomes
d)
chromosomes
4.
The cell theory declares
a)
cells come from cells
b)
all living are made up of cells
c)
cells are the basic unit of structure and function
d)
all of the above
5.
Prokaryotic
a)
are single celled organisms that do not have a nucleus or membrane bound organelles
b)
a protective layer that covers the the cells surface and acts as a barrier
c)
is the smallest unit that can preform all the processes necessary for life
d)
is the same as eukaryotic
6.
The cell membrane is solid and rigid
a)
true
b)
false
7.
Diffusion is the movement of
a)
water from low to high concentration
b)
particles from low to high concentration
c)
water from high to low concentration
d)
particles from high to lowconcentration
8.
Which of the following terms means the movement of water from high concentration to low concentration?
a)
diffusion
b)
prokaryotes
c)
osmosis
d)
concentration
9.
Which way would the purple molecules move through the semi permeable membrane?
a)
From the A side to the B-side
b)
From the B side to the A side
c)
none of the purple molecules would move
10.
Which is true about active transport?
a)
It requires energy
b)
it does not require energy
c)
It moves substances down the concentration gradient
d)
it moves material from high to low concentration
11.
A state of biological balance
a)
homeostasis
b)
turgor pressure
c)
hypotonic
d)
plasma membrane
12.
Permeable means
a)
things can pass through
b)
the concentration levels are different
c)
it is permanent
d)
things are stuck
13.
What does it mean that a cell membrane is semi-permeable?
a)
It allows all substances in
b)
It allows some substances in
c)
It allows nothing in
14.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
osmosis
b)
diffusion
c)
equilibrium
15.
Which transport does not require energy?
a)
Passive
b)
Active
16.
Which of the following substances passes through the plasma membrane by the process of osmosis?
a)
glucose
b)
water
c)
protein
d)
sodium
17.
This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.
a)
vacuole
b)
nucleus
c)
cell membrane
d)
cell wall
18.
The movement of molecules against a concentration gradient
a)
simple diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
19.
What is this image?
a)
cell membrane
b)
proteins
c)
carbohydrates
d)
lipids
20.
What does hydrophobic mean?
a)
Likes water as a friend
b)
Dissolves in water
c)
Loves water
d)
Hates water
21.
How many layers is the lipid bilayer?
a)
1
b)
2
c)
3
d)
4
22.
The cell membrane is selectively permeable, which means...
a)
All materials can enter and leave the cell
b)
Certain things can enter while others cannot
c)
The cell manually sorts through all materials
d)
Only certain cells can interact with the cell.
23.
The picture is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
24.
Two examples of passive transport are
a)
Earth and Sun
b)
Diffusion and Osmosis
c)
Energy and Wind
d)
None of the above
25.
This is the simplest form of passive transport:
a)
osmosis
b)
diffusion
c)
facilitated diffusion
d)
endocytosis
26.
This organelle receives materials from the endoplasmic reticulum and sends them to other parts of the cell.
a)
ribosomes
b)
mitchondria
c)
cytoplasm
d)
golgi bodies
27.
There are more molecules inside a cell than there are outside the cell.... which way would the molecules move inside the cell or outside the cell
a)
Move inside the cell
b)
Move outside the cell
28.
Sometimes, energy is required for ____ molecules to go in or out of the cell because they cannot fit into the membrane.
a)
big
b)
small
c)
crunchy
d)
water
29.
Most of the cell's energy is produced within these rod-shaped organelles. This organelle is considered the "powerhouse" of the cell.
a)
ribosomes
b)
mitochondria
c)
vacuole
d)
endoplasmic reticulum
30.
The network of passageways carries materials from one part of the cell to another.
a)
endoplasmic reticulum
b)
golgi bodies
c)
vacuole
d)
cell
31.
These organelles capture energy from sunlight and use it to produce food for the cell.
a)
cell membrane
b)
chloroplasts
c)
cell wall
d)
ribosomes
32.
These small structures function as factories to produce proteins.
a)
mitochondria
b)
golgi body
c)
endoplasmic reticulum
d)
ribosomes
33.
This sac with the cytoplasm stores water, food, waste, products and other materials.
a)
vacoule
b)
organelle
c)
cytoplasm
d)
cell membrane
34.
In a plant cell, a stiff wall surrounds the membrane, giving the cell a rigid, boxlike shape.
a)
cell membrane
b)
cell
c)
ribosome
d)
cell wall
35.
The movement of molecules against a concentration gradient
a)
simple diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
36.
These organic molecules are used by the body to store and release energy.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
37.
These organic molecules are used by the body to store the genetic code.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
38.
These organic molecules are used by the body for long term storage of energy and make up the structure of cell membranes.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
39.
Sugars (glucose) and starch are examples of this organic molecule:
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
40.
Fatty acids such as butter and oils and phospholipids are examples of this organic molecule:
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
41.
Examples of nucleic acids?
a)
DNA and RNA
b)
carbohydrates
c)
potatoes
d)
meats
42.
Sugars usually end in....
a)
-ose
b)
-ace
c)
-ats
d)
-ids
43.
A(n) __________ is the part of the enzyme the substrate fits into.
a)
product
b)
active site
c)
enzyme
d)
substrate
44.
Amino acids are the monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
45.
Made of monomers of monosaccharides
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
46.
Made of monomers of nucleotides
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
47.
Made of glycerol and fatty acids
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
48.
Waterproofs, insulates, and stores energy long-term
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
49.
Enzymes are considered to be
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
50.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
51.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
52.
Once a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate, so we call the enzyme
a)
reusable
b)
catalyst
c)
specific
d)
fragile
53.
When electrons are shared between two atoms, the bond formed is
a)
ionic
b)
covalent
c)
hydrogen
d)
peptide
54.
A substance with a pH of 4 is considered a(n)
a)
base
b)
neutral
c)
acid
55.
The energy needed to start a reaction
a)
activation energy
b)
adhesion energy
c)
chemical energy
d)
cohesion energy
56.
Which property makes water molecules stick to other water molecules?
a)
adhesion
b)
cohesion
c)
capillary action
d)
polarity
57.
The purpose of nucleic acids is to store
a)
Water
b)
Minerals
c)
Genetic Information
d)
Energy
58.
The cell membrane is made up of
a)
plasma
b)
phospholipid bilayer
c)
proteins
d)
Nucleic Acids
59.
The cell wall in plants contains which carbohydrate?
a)
Carbon
b)
glucose
c)
fructose
d)
cellulose
60.
All polymers are made up of...
a)
monosaccharides
b)
monomers
c)
proteins
d)
None of these
61.
What is the main goal of enzymes?
a)
lower the activation energy
b)
raise the activation energy
c)
slow the reaction rate
d)
find other molecules
62.
Which of the following is a large molecule of many simple sugars?
a)
Monosaccharide
b)
Disaccharide
c)
Polysaccharide
d)
Googlesaccharide
63.
The loss of a protein's structure is called...
a)
Denaturation
b)
Unfolding
c)
Coiling
d)
Inactivation
64.
The substance on which an enzyme acts is the:
a)
product
b)
substrate
c)
active site
d)
activation energy
65.
The word saccharide means:
a)
sugar
b)
glucose
c)
sweetener
d)
carbohydrate
66.
Is water a polar or non-polar molecule?
a)
polar
b)
non-polar
67.
What is a hydrogen bond?
a)
attraction between molecules of the same substance
b)
substance that is dissolved in a solution
c)
weak attraction between a hydrogen atom and another atom
d)
way plants transport water through their tissues
68.
What does the pH scale range from?
a)
0-10
b)
2-15
c)
1-5
d)
0-14
69.
Hydrogen atoms are slightly...
a)
positive
b)
negative
70.
oxygen atoms are slightly...
a)
positive
b)
negative
71.
What is cohesion?
a)
water molecules sticking to other water molecules
b)
water molecules sticking to different molecules
c)
when you dissolve a substance in a solution
d)
when molecules become chemically combined
72.
What is the main property of water?
a)
Ice
b)
Adhesion
c)
Cohesion
d)
Polarity
73.
What is cohesion?
a)
Polarity
b)
water molecules sticking to other surfaces
c)
water molecules clinging to other water molecules
d)
the atmosphere
74.
Capillary action is the result of adhesion. Which aspect of water is responsible for this?
a)
Nonpolar covalent bonds that enable water to dissolve other substances
b)
Polar covalent bonds that join molecules of water to other substances
c)
Hydrogen bonds between water and another substance
d)
Ionic bonds that enable electrons to flow through water and into another substance
75.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
76.
The variable that is being tested in an experiment is called
a)
a constant
b)
the independent variable
c)
the dependent variable
d)
a responding variable
77.
The variable that is responding to the test conditions is called
a)
a constant
b)
the manipulated variable
c)
the independent variable
d)
the dependent variable
78.
The variables that are kept the same for all groups are called
a)
constants
b)
controls
c)
responding variables
d)
manipulated variables
79.
At a minimum, a controlled experiment should have at least two groups -
a)
a constant and variable groups
b)
a control and variable groups
c)
a constant and experimental groups
d)
a control and experimental groups
80.
The purpose of the control group is to serve as
a)
the standard for comparison
b)
a copy of the experiment
c)
a source of experimental materials
d)
a record of the experiment
81.
The responding variable must respond to the manipulated variable in a way that
a)
is measurable and observable
b)
will require an additional responding variable
c)
will require an additional independent variable
d)
is not measurable or observable
82.
A properly stated hypothesis will tell you
a)
how to control the experiment
b)
how the independent variable will affect the dependent variable
c)
how the dependent variable will affect the independent variable
d)
the constants of the experiment
83.
A control group
a)
is a constant
b)
does not receive the variable being tested
c)
receives the independent variable
d)
does not have the dependent variable
84.
If a controlled experiment does not have a control, is it a controlled experiment?
a)
Yes
b)
No
85.
The manipulated variable is also known as the
a)
dependent variable
b)
independent variable
c)
control
d)
constant
86.
The responding variable is also known as the
a)
dependent variable
b)
independent variable
c)
control
d)
constant
87.
The variables that are kept the same across groups are called
a)
dependent variables
b)
independent variables
c)
controls
d)
constants
88.
Which of the following could be a title for an experiment?
a)
John's experiment
b)
Increasing hair growth
c)
Eating apples increases hair growth
d)
Why does hair grow?
89.
An ExD helps us to
a)
understand what is happening in the experiment
b)
obtain better data
c)
know how to operate the equipment used in the experiment
d)
all of the above
90.
In a controlled experiment, how many variables should be tested at one time?
a)
2
b)
5
c)
3
d)
1
91.
List the levels of organization in order.
a)
tissues, organs, systems, organism, cells, chemical
b)
chemicals, cells, tissues, organs, systems, organism
c)
cells, chemical, organs, tissues, systems, organism
d)
organism, cells, chemical, tissues, organs, systems
92.
The study of life.
a)
biology
b)
biosphere
c)
DNA
d)
metabolism
93.
Signal that requires a response.
a)
metabolism
b)
bioshere
c)
stimulus
d)
DNA
94.
A single organism that produces offspring identical to itself.
a)
DNA
b)
asexual reproduction
c)
sexual reproduction
d)
metabolism
95.
Maintaining a stable internal environment.
a)
Homeostasis
b)
Metabolism
c)
Stimulus
d)
DNA
96.
Chemical reactions that build up or break down materials.
a)
homeostasis
b)
metabolism
c)
asexual reproduction
d)
DNA
97.
Cells from 2 parents unite to form a new individual.
a)
asexual reproduction
b)
sexual reproduction
c)
biosphere
d)
stimulus
98.
An organism made of one cell is called
a)
unicellular
b)
multicellular
99.
Which one of the following is a characteristic of life?
a)
Growth
b)
Breathing
c)
Expelling toxins
d)
Photosynthesis
100.
Which one of the following is a characteristic of life?
a)
Photosynthesis
b)
Adapting to your environment/ surroundings
c)
Expelling toxins
d)
Breathing
101.
The basic unit of life is called a (n)
a)
atom
b)
compound
c)
cell
d)
energy
102.
Keeping your internal body temperature the same is called
a)
excretion
b)
homeostasis
c)
respiration
d)
metabolism
103.
In order to be considered living an organism must have
a)
blood
b)
cells
c)
brains
d)
hair
104.
Organisms have specific needs to keep themselves living...which of the following is a need of life?
a)
water
b)
blood
c)
houses
d)
shoes
105.
Rocks are not living because
a)
they never move
b)
they aren't needed for humans
c)
they are not made of cells
d)
they don't break down
106.
A worm turns away from light is an example of a worm
a)
reproducing
b)
doing cellular respiration
c)
having cells
d)
responding to its environment
107.
All organisms have more than one cell.
a)
false
b)
true
108.
What is the main source of energy on Earth?
a)
stars
b)
moon
c)
water
d)
sun
109.
Cells work together to make the following.
a)
tissues
b)
organs
c)
organ systems
d)
organism
110.
Organs work together to make the following.
a)
cells
b)
organs
c)
organ systems
d)
organism
111.
The dismissal bell rings and you pack up your belongings. In this scenario, what is the stimulus?
a)
The bell ringing
b)
You packing up your belongings
c)
More information is needed
112.
What is one chacteristic of life
a)
living things make friends
b)
living things reporduce
c)
living things talk
d)
living things draw pictures of dogs
113.
What are the two types of reproduction?
a)
There is only one
b)
Asexual and Sexual
114.
Change that improves survival in the environment
a)
Organization
b)
Adaption
c)
Growth and Development
115.
making more living things of the same type.
a)
growth
b)
movement
c)
nutrition
d)
reproduction
116.
A ___________ organism is made of only one cell.
a)
unicycle
b)
unicellular
c)
unicorn
d)
uni-brow
117.
Turning around to see who is calling your name is an example of a
a)
response
b)
responsibility
c)
reason
d)
rationale
118.
The study of animals.
a)
animalology
b)
plantology
c)
zoology
d)
geology
119.
The study of plants.
a)
plantology
b)
ecology
c)
botology
d)
botany
120.
The study of how organisms interact with others and their environment.
a)
ecology
b)
environmentology
c)
sociology
d)
morphology
121.
The study of the internal structure of organisms.
a)
physiology
b)
anatomy
c)
internology
d)
genetics
122.
The branch of science concerned with the functioning of organisms – how it works.
a)
Physiology
b)
Anatomy
c)
Biophysics
d)
Morphology
123.
The study of heredity and the variation of inherited characteristics.
a)
Genetiology
b)
Geneology
c)
Genetics
d)
Geology
124.
The branch of science that deals with the identification of the substances of which matter is composed.
a)
Chemisty
b)
Matterology
c)
Identification Biology
d)
Geology
125.
The branch of science concerned with the nature and properties of matter and energy.
a)
Physics
b)
Chemistry
c)
Biophysics
d)
Biochemistry
126.
The branch of science that deals with celestial objects, space, and the physical universe as a whole.
a)
Spaceology
b)
Astronomy
c)
Geology
d)
Astrology
127.
The name for all living things obtaining materials and use energy through complex chemical reactions.
a)
homeostasis
b)
metabolism
c)
meteorology
d)
reproduction
128.
All living things obtain materials and use energy through complex chemical reactions.
a)
Homeostasis
b)
Metabolism
c)
Response to stimuli
d)
Growth and development
129.
The maturation of an organism.
a)
Growth
b)
Development
c)
Adaptation
d)
Evolution
130.
A change in an organisms size or shape.
a)
growth
b)
development
c)
adaptation
d)
metabolism
131.
A complex set of responses.
a)
Adaptations
b)
Metabolisms
c)
Stimlus
d)
Behavior
132.
Which of the following is a product of photosynthesis?
a)
water
b)
carbon dioxide
c)
glucose
d)
energy
133.
This organelle converts sugars into energy.
a)
chlorophyll
b)
chloroplast
c)
mitochondria
d)
nucleus
134.
Photosynthesis depends on all of the following EXCEPT -
a)
water
b)
sunlight
c)
carbon dioxide
d)
glucose
135.
What is the process by which plants capture light energy from sunlight and convert it into chemical energy?
a)
photosynthesis
b)
cellular respiration
136.
What is the process when an organic molecule is broken down in the absence of oxygen?
a)
aerobic respiration
b)
anaerobic respiration
137.
What is the name for processes that requires oxygen?
a)
aerobic
b)
anaerobic
c)
oxygen cycle
d)
carbon cycle
138.
What is the breaking of chemical bonds of organic food molecules and releasing of energy called?
a)
photosynthesis
b)
cellular respiration
139.
Where does aerobic respiration occur?
a)
mitochondria
b)
cytoplasm
c)
chloroplast
d)
chlorophyll
140.
How is energy released from ATP?
a)
by making bonds
b)
by breaking bonds
141.
How is energy stored in ATP?
a)
by creating bonds
b)
by breaking bonds
142.
In what kinds of organisms does glucose and oxygen become carbon dioxide, water and ATP?
a)
plants
b)
animals
c)
plants and animals
d)
none of these
143.
Where does anaerobic respiration occur?
a)
mitochondria
b)
cytoplasm
c)
chloroplast
d)
chlorophyll
144.
Which of the following is strictly an autotrophic process?
a)
photosynthesis
b)
cellular respiration
c)
glycolysis
d)
Krebs cycle
145.
Which of the following is strictly a heterotrophic process?
a)
photosynthesis
b)
cellular respiration
c)
Krebs cycle
d)
none of these
146.
What are the PRODUCTS for cellular respiration?
a)
oxygen and ATP (energy)
b)
water and glucose and ATP (energy)
c)
carbon dioxide and water and ATP (energy)
d)
glucose and oxygen
147.
This is referred to as the energy currency of the cell
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
148.
This means that oxygen is needed
a)
anaerobic
b)
aerobic
149.
When respiration occurs with oxygen, it is called _______
a)
anaerobic
b)
aerobic
c)
light-dependent
d)
fermentation
150.
Anaerobic
a)
Doesn't require Oxygen
b)
Requires Oxygen
c)
Requires ATP
d)
doesn't require anything at all
151.
What type(s) of cells perform cellular respiration?
a)
all cells
b)
animals
c)
plants
d)
bacteria
152.
In order for anaerobic respiration to take place ___ is required
a)
glucose
b)
oxygen
c)
carbon dioxide
d)
all of these choices
153.
Where in the plant cell does photosynthesis take place?
a)
In the stroma
b)
In the chloroplast
c)
In the mitochondria
d)
In the cell wall
154.
6CO2 + 6H20 + light energy -> C6H12O6 + 6O2
In this chemcial equation, the highlight red is called the ______.
In this chemcial equation, the highlight red is called the ______.
a)
products
b)
reactants
c)
yields
d)
production
155.
A green substance that absorbs light and aids in starting photosynthesis:
a)
chlorophyll
b)
pigment
c)
thylakoid
d)
Calvin cycle
156.
The rate of photosynthesis decreases as the
a)
oxygen concentration decreases
b)
carbon dioxide concentration decreases
c)
light intensity increases
d)
temperature becomes moderately warm
157.
Which of these substances is an end product of photosynthesis?
a)
carbon dioxide
b)
chlorophyll
c)
carotenoids
d)
carbohydrates
158.
If you are not an autotroph, then you
a)
use energy from the sun
b)
can live without any form of energy
c)
obtain energy from inorganic molecules
d)
must eat other organisms to survive
159.
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
160.
Which of the following is the correct equation for CELLULAR RESPIRATION?
a)
Sugar + O2 --> CO2 + H2O + ATP
b)
ATP + O2 --> CO2 + H2O + sugar
c)
Sugar + CO2 --> O2 + H2O + ATP
d)
Sugar + H2O + O2 --> CO2 + O2 + ATP
161.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
162.
Which organelle performs CELLULAR RESPIRATION?
a)
Chloroplast
b)
Mitochondria
163.
What process occurs when light energy is captured in autotrophs and converted into sugar?
a)
Photosynthesis
b)
Cellular Respiration
164.
What process occurs when sugar is converted into ENERGY (ATP)
a)
Photosynthesis
b)
Cellular Respiration
165.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
166.
Which organisms perform photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
d)
None of these
167.
Which organisms perform cellular respiration?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
d)
None of these
168.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
169.
Which of the following is an example of a HETEROTROPH?
a)
Grass
b)
Algae
c)
Lemon Tree
d)
Bear
170.
What is the main chemical compound that stores and releases energy?
a)
ATP
b)
Cytoplasm
c)
PTP
d)
Oxygen
171.
In a chemical reaction, ____ are the substances that you start with (what enters into the chemical reaction).
a)
starters
b)
reactants
c)
products
d)
results
172.
In a chemical reaction, ____ are the substances that you end with (the new substances that are formed).
a)
starters
b)
reactants
c)
products
d)
results
173.
What are the REACTANTS for cellular respiration?
a)
oxygen and carbon dioxide
b)
water and glucose
c)
carbon dioxide and water
d)
glucose and oxygen
174.
What are the PRODUCTS for cellular respiration?
a)
oxygen and ATP (energy)
b)
water and glucose and ATP (energy)
c)
carbon dioxide and water and ATP (energy)
d)
glucose and oxygen
175.
What does Aerobic respiration do?
a)
Makes a small amount of CO2
b)
Makes a large amount of CO2
c)
It does nothing
d)
Makes a large amount of ATP
176.
We know that plants capture the energy of the Sun and store the energy. Where is the that energy stored?
a)
in the chloroplast
b)
in the mitochrondria
c)
in the bonds of the food molecules
d)
in the bonds between the water molecules
177.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
178.
the two halves of the doubled chromosome structure
a)
centromeres
b)
sister chromatids
c)
spindle
d)
tissues
179.
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.
180.
This picture shows which process?
a)
mitosis
b)
meiosis
c)
the cell cycle
181.
The cell spends most of time in what phase?
a)
Interphase
b)
S phase
c)
G1 phase
d)
Mitosis
182.
Structure (a) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
183.
How many chromosomes do humans have?
a)
46
b)
21
c)
10
184.
Which processes is most important for the replacement of worn out body cells?
a)
diffusion
b)
meiosis
c)
mitosis
d)
absorption
185.
Which process allows for an organism to increase the number of body cells during development?
a)
meiosis
b)
budding
c)
mitosis
d)
conjugation
186.
A scientist is trying to discover a new treatment to stop cancer cell from dividing. In the cancer cells, which of these processes will stop if the treatment is successful?
a)
chemosynthesis
b)
binary fission
c)
genetic recombimation
d)
mitosis
187.
Lung cancer cells do not respond to the signals that regulate the growth of normal lung cells. Which process is not regulated in the cancerous cells?
a)
meiosis
b)
mitosis
c)
fertilization
d)
transpiration
188.
Which of the following produces identical nuclei in cells?
a)
osmosis
b)
mitosis
c)
pollination
d)
fertilization
189.
Which term refers to the sequence of events that cells go through as they grow and divide?
a)
active transport
b)
cell cycle
c)
cellular respiration
d)
protein synthesis
190.
What is the result when a single cell reproduces by mitosis?
a)
4 cells with 1/2 the genetic material of the parent cell
b)
4 cells with the genetic material identical to the parent cell
c)
2 cells with 1/2 the genetic material of the parent cell
d)
2 cells with genetic material identical to the parent cell
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