WorksheetsCYCLIC BIO UNIT 2 REVIEW
Total questions: 77
Worksheet time: 54mins
Name
Class
Date
1.
Which of the following scientists concluded that all animals are made of cells?
a)
Rudolf
Virchow
b)
Matthais
Schleiden
c)
Robert
Hooke
d)
Theodor
Schwann
2.
Which of the following scientists was the first to observe bacteria?
a)
Anton
van Leuwenhoek
b)
Matthais
Schleiden
c)
Robert
Hooke
d)
Theodor Schwann
3.
Which of the following statements is not part of the cell theory?
a)
Cells are the basic unit of structure and function in all living things.
b)
All cells are produced from other cells.
c)
Only animal cells are composed of cells.
d)
All living things are composed of cells.
4.
The invention of the microscope made it possible for people to discover and learn about
a)
Plants
b)
Skin
c)
Animals
d)
Cells
5.
What is one way in which all living things on Earth are alike?
a)
All living things have hair.
b)
All living things are made of cells and come from other cells.
c)
The cells of all living things have chloroplast.
d)
All living things can move.
6.
When cells are damaged, new cells are created by cell division. How does the cell theory support this fact?
a)
It states that all cells have a nucleus which divides.
b)
It states that all living things are made up of one or more cells.
c)
It states that cells come from previously existing cells.
d)
It states that the basic units of structure and function are cells.
7.
The _______ is the smallest structural and functional unit of a living thing. (this will be matching on the test)
a)
cell
b)
metabolism
c)
nutrition
d)
defense
8.
Fungi, Plants, and Animals
a)
Unicellular organisms
b)
Multicellular organisms
9.
Multicellular Organisms
a)
Made of 1 cell
b)
Made of more than 1 cell
10.
dog
a)
unicellular
b)
multicellular
c)
neither
11.
one cell
a)
unicellular
b)
multicellular
c)
neither
12.
5. Based on this image is the Euglena multicellular or unicellular?
a)
1. Multicellular
b)
2. Unicellular
13.
bacteria
a)
unicellular
b)
multicellular
c)
neither
14.
7. Classify the following examples (pictures) as unicellular or multicellular
a)
1. Unicellular
b)
2. Multicellular
15.
1. What does the prefix "uni" means?
a)
1. Two
b)
2. One
c)
4.many
16.
The majority of living organisms on Earth can be classified as _______.
a)
multicellular
b)
unicellular
c)
mammals
d)
insects
17.
Which organism performs all life processes in one cell?
a)
grass
b)
bacteria
c)
mushroom
d)
butterfly
18.
Molly is reading a book in science class. She reads one sentence that says, “This organism is capable of surviving as a single cell.” Which organism is she most likely reading about?
a)
amoeba
b)
flower
c)
mushroom
d)
insect
19.
Which best describes a multi-celled organism?
a)
basic
b)
simple
c)
uniform
d)
complex
20.
How are single-celled organisms and multi-celled organisms similar?
a)
Both need food for energy and growth.
b)
Both have a skeletal system for support.
c)
Both require the interaction of many cells to survive.
d)
Both are able to carry out all life functions in only one cell.
21.
Histones are
a)
proteins wound up in DNA
b)
critical to maintaining the shape of chromosomes
c)
aid in the tight packing of DNA
d)
all of these
22.
Each identical side of a chromosome is the
a)
centromere
b)
chromatin
c)
centriole
d)
chromatid
23.
When DNA is in its less coiled, "relaxed," state, between cell divisions, it is called
a)
autosomes
b)
chromatid
c)
chromatin
d)
centromere
24.
Autosomes are
a)
chromosomes found in autotrophs, only
b)
chromosomes that automatically correct all errors in the DNA
c)
chromosomes that determine traits other than sex
d)
chromosomes that determine the sex of the individual
25.
The structure that holds two chromosomes together until they separate for cell division is the
a)
chromatid
b)
chromatin
c)
centromere
d)
cytoplasm
26.
An organism's reproductive cells, or sex cells, are called _____.
a)
bacteria
b)
prokaryotes
c)
gametes
d)
pathogens
27.
A _______ is a segment of DNA that codes for a specific protein or RNA molecule.
a)
gene
b)
gamete
c)
chromosome
d)
chromatid
28.
A _________ is DNA tightly coiled around proteins.
a)
gene
b)
chromosome
c)
trait
d)
mutation
29.
The 2 exact copies of DNA in a chromosome are called ________.
a)
chromatids
b)
genes
c)
mutations
d)
pathogens
30.
How many chromosomes does a human body cell have, total?
a)
48
b)
46
c)
23
d)
47
31.
The 23rd pair of chromosomes that do determine the sex of an individual are called ___________.
a)
sex chromosomes
b)
autosomes
c)
homologous
d)
genes
32.
The 2 female sex chromosomes are ___.
a)
XY
b)
XX
33.
The 2 male sex chromsomes are _____.
a)
XY
b)
XX
34.
A photo of the chromosomes in a dividing cell that are arranged by size is called a _________.
a)
mutation
b)
gene
c)
picture
d)
karyotype
35.
Down Syndrome is also known as _________.
a)
Trisomy 18
b)
Trisomy 21
c)
Monosomy X
d)
Trisomy 13
36.
Turner Syndrome is also known as _______.
a)
Monosomy X
b)
Trisomy 13
c)
Trisomy 18
d)
Trisomy 21
37.
How many pairs of homologous chromosomes are found in each (body) cell?
a)
46
b)
23
c)
72
d)
10
38.
A karyotype is:
a)
A tool scientists use to analyze chromosomes
b)
A tool scientists use to predict the potential genotypes / phenotypes of offspring
c)
A tool scientist use to identify genes in the human genome
d)
A tool scientists use to identify criminals & find relatives
39.
Monosomy:
a)
Missing 1 chromosome
b)
3 chromosomes (instead of a pair)
c)
Chromosomes are normal
40.
Trisomy:
a)
Missing 1 chromosome
b)
3 chromosomes (instead of a pair)
c)
Chromosomes are normal
41.
What is the gender of the individual whose karyotype is seen in the image?
a)
Male
b)
Female
42.
Klinefelter's Syndrome has the karyotype notation of
a)
47XX+21
b)
47XXY
c)
45XO
d)
44XX
43.
What can you determine about this person based on their karyotype?
a)
They have Downs Syndrome
b)
They have Turner's Syndrome
c)
They have Edward's Syndrome
d)
They are completely Normal
44.
What can you determine about this person based on their karyotype?
a)
They have Turner's Syndrome (Monosomy X)
b)
They have Downs Syndrome
c)
They are normal
d)
They are male
45.
Large bodies of water do not quickly fluctuate in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.
46.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
47.
The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form
a)
less polar
b)
more polar
c)
less dense
d)
more dense
48.
The tightness across the surface of water that enables paper clips to float is ____________.
a)
adhesion
b)
capillary action
c)
surface tension
d)
polarity
49.
Which statement explains why water molecules stick together?
a)
both sides are negative
b)
one side has a positive charge and the other side has a negative charge
c)
one side has a negative charge adn the other side has a neutral charge
d)
both sides are positive
50.
Large bodies of water help to keep nearby climates from being too hot or too cold because they...
a)
absorb heat in the spring and slowly release that heat in the fall
b)
absorb heat in the fall and slowly release that heat in the spring
c)
absorb heat in the summer and slowly release that heat in the winter
d)
absorb heat in the winter and slowly release that heat in the summer
51.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
52.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
53.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
54.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
55.
Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?
a)
The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet
c)
The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
56.
Why does water move from the roots to the leaves of plants?
a)
Water is pushed by solutes
b)
Capillary action pulls the water molecules like a chain
c)
Water is pulled by gravity
d)
Water’s cohesion causes it to “pull” towards the leaves
57.
What is water?
a)
An atom
b)
A molecule composed of 2 parts Oxygen and one part Hydrogen
c)
A molecular compound composed of 2 parts Hydrogen and one part Oxygen
d)
A pure substance composed of 2 parts Hydrogen and one part Oxygen
58.
What is the chemical formula for water?
a)
H20
b)
h2o
c)
H2O2
d)
H2O
59.
What is adhesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
60.
What is cohesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
61.
What is surface tension?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
62.
What is the charge on the oxygen atom in the water molecule?
a)
positive
b)
slight positive
c)
negative
d)
slight negative
63.
Water is polar because...
a)
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
b)
The molecule has two poles, at which the it is colder than other regions of the molecule.
c)
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
d)
The water molecule is neutral.
64.
Because water has a positive and a negative end, and is attracted to other molecules it is called a ______ molecule.
a)
mickey mouse
b)
polar (tiny magnet)
c)
special
d)
miracle
65.
Which type of protist is shown in the picture?
a)
euglena
b)
paramecium
c)
amoeba
d)
eukaryotic
66.
Which type of protist is shown in the picture?
a)
euglena
b)
paramecium
c)
amoeba
d)
autotroph
67.
What is the name for an organism that can produce its own food?
a)
heterotroph
b)
autotroph
c)
amoeba
d)
eukaryotic
68.
What is the name of an organism that cannot produce its own food and must get it from another source?
a)
prokaryotic
b)
eukaryotic
c)
autotroph
d)
heterotroph
69.
What is the name of the structure shown in the model?
a)
cilia
b)
flagella
c)
amoeba
d)
pseudopod
70.
Which of the following is NOT a function of the cilia?
a)
to sweep food into the paramecium's "mouth"
b)
to allow the paramecium to move
c)
to secrete poison to kill predators
d)
to trap food
71.
What organism uses the pseudopod for both movement and capturing its food?
a)
amoeba
b)
paramecium
c)
volvox
d)
pretzel mold
72.
What amoeba structure is a finger-like projection of the cell membrane used for movement and obtaining food?
a)
Cilia
b)
Pseudopod
c)
Flagella
d)
Hair-like
73.
Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?
a)
The function of these bones is the same in all animals
b)
They live in similar environments
c)
They have a common ancestor
d)
All organisms resemble humans
74.
An example of a homologous structure
a)
human arm and bird wing
b)
rat appendix and human appendix
c)
wing of butterfly and bird wing
75.
The diagram shows an image of a Pterosaur wing, bat wing, and bird wing. These are all different organisms, but share similar wing structures. If these structures are similar due to common ancestry, which of the following best describes them?
a)
a. Vestigial Organ
b)
b. Embryological Similarities
c)
c. Homologous Structures
d)
d. Analogous Structures
76.
A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?
a)
This is purely by chance and isn't significant
b)
The extinct dinosaur and modern bird share a common ancestor
c)
All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today
d)
Dinosaurs choose to fly, and evolved into birds to escape predation and capture food
77.
The best definition for biological evolution is?
a)
A. When Earth’s processes cause change overtime.
b)
B. When rock’s change over time.
c)
C. When a species changes overtime.
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