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Edmentum - Biology - Unit 1 Review

Total questions: 129

Worksheet time: 43mins

Name
Class
Date
1.
A well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses.
a)
Fact
b)
Theory
c)
Law
d)
Conclusion
2.
Scientific theories are based on
a)
general assumptions of how systems work.
b)
mathematical principles that can be proven true.
c)
large amounts of data collected over time.
d)
observations from within only one scientific discipline.
3.
Kalinda was trying to explain to her friend the difference between a theory and a law in science.  She used the theory of plate tectonics and the law of superposition as examples.  Kalinda explained the difference by using nonscientific language.  Which statement did Kalinda use to correctly describe the difference between a theory and a law in science?
a)
A theory describes a natural event, while a law explains it.
b)
A theory explains a natural event, while a law predicts it.
c)
A theory explains a natural event, while a law describes it.
d)
A theory predicts a natural event, while a law explains it.
4.
Laws are usually mathematically defined.
a)
True
b)
False
5.
A scientific ____________ is a statement that describes what always happens under certain conditions in nature.
a)
law
b)
theory
c)
method
d)
variable
6.
A scientific ____________ is a broad explanation for events that is widely accepted as true.
a)
law
b)
theory
c)
observation
d)
method
7.
A set of principles that explains and predicts a phenomena is called a _____. 
a)
scientific law
b)
scientific method
c)
scientific theory
d)
scientific instructor
8.
An object at rest will remain at rest unless acted on by an unbalanced force.
An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. 
a)
Fact
b)
Theory
c)
Law
9.
The EARTH is made of the following CHEMICAL ELEMENTS:
oxygen 46.6 %
aluminum 8.1 %
iron 5%
sodium 2.8 %
a)
Fact
b)
Theory
c)
Law
10.
Generally refers to the idea that the universe has expanded from a primordial hot and dense initial condition at some finite time in the past, and continues to expand to this day.
a)
Fact
b)
Theory
c)
Law
11.
 The melting point of water is 0 °C (32 °F).  
The freezing point of water is the same as the melting point which is 0 °C (32 °F). 
a)
Fact
b)
Theory
c)
Law
12.
New cells are formed from other existing cells, and that the cell is a fundamental unit of structure, function and organization in all living organisms.
a)
Fact
b)
Theory
c)
Law
13.
The Sun, composed mostly of helium and hydrogen, has a surface temperature of 6000 degrees Celsius.
a)
Fact
b)
Theory
c)
Law
14.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
15.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 
a)
experimental group
b)
control group
c)
data
d)
variables
16.
What do you call the part of the investigation that IS manipulated?
a)
control
b)
independent variable
c)
dependent variable
d)
constant
17.
What do you call the part of the investigation that the scientist is measuring?
a)
control
b)
independent variable
c)
dependent variable
d)
constant
18.
What do you call the part of the investigation that should be the same in every investigation?
a)
control
b)
independent variable
c)
dependent variable
d)
constant
19.
What do you call the part of the investigation that is NOT manipulated?
a)
control
b)
independent variable
c)
dependent variable
d)
constant
20.
Scientists all over the world are sure that all matter is made of atoms.  All of their investigations point to the fact that this is true.  Unfortunately, there is no way to know 100% for sure if atoms are real.  This means that the idea of atoms is a _________.
a)
question
b)
hypothesis
c)
theory
d)
law
21.
An explanation a scientist makes that IS 100% proven based off multiple investigations is called a ___________.
a)
hypothesis
b)
theory
c)
law
d)
question
22.
The variable the is changed on purpose is..
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
23.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as 
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
24.
Which brand of paper towel will absorb the most liquid? What is the independent variable?
a)
Brand of paper towel
b)
Amount of water absorbed
25.

What you measure or observe in an experiment.

a)

constant variable

b)

controlled variable

c)

dependent variable

d)

independent variable

26.

The ONE thing you change in an experiment.

a)

constant variable

b)

controlled variable

c)

dependent variable

d)

independent variable

27.

Find the Independent Variable: You experiment to see if a bouncy ball or a tennis ball bounces higher.

a)

Type of ball

b)

Same drop height

c)

Height of bounce

d)

Same surface

28.

Justin wants to determine the effect of fertilizer on the growth of grass. What is the dependent variable?

a)

amount of fertilizer

b)

height of grass

c)

type of plant

d)

time

29.

What is another term for the independent variable?

a)

responding variable

b)

manipulated variable

c)

constant variable

d)

control

30.

What is another term for dependent variable?

a)

responding variable

b)

manipulated variable

c)

constant variable

d)

hypothesis

31.

What is the independent variable in this experiment: Will an egg float higher in water with more salt?​

a)

type of egg

b)

amount of salt in the water

c)

how high the egg floats

32.
Atoms are most stable when their outer shell is complete.
a)
true
b)
false
33.
Covalent bonds actually "share" electrons?
a)
true
b)
false
34.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
35.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
36.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
37.
Is this ionic bond drawn correctly?
a)
Yes
b)
No
38.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
39.
Gain or lose electrons
a)
Ionic Bonds
b)
Covalent Bonds
c)
Both bonds
d)
Neither bond
40.
Share electrons
a)
Ionic Bonds
b)
Covalent Bonds
c)
Both bonds
d)
Neither bond
41.
This picture shows a...
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
42.
This picture shows a...
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
43.

Water molecules are held together by what type of bond?

a)

Hydrogen

b)

covalent

c)

ionic

d)

none

44.

Atoms in a water molecule are held together by what type of bond?

a)

Ionic

b)

hydrogen

c)

covalent

d)

none

45.

Covalent bonds are weak

a)

True

b)

False

46.
Which biomolecule contains fats, oils, and waxes?
a)
Proteins
b)
Nucleic Acid
c)
Lipids
d)
Carbohydrate
47.
What do monomers do?
a)
Bond to make a polymer
b)
Create essential proteins
c)
Stores energy
d)
Splits to make more cells
48.
The monomer of a protein is called...
a)
an amino acid
b)
a monosaccharide
c)
a fatty acid
d)
a nucleotide
49.

Which organic molecule would a long-distance runner most likely choose to eat two hours before a race?

a)

A protein, because it builds muscle mass.

b)

A lipid because it provides long term energy storage.

c)

A carbohydrate because it releases energy quickly.

d)

A protein, because it transports oxygen into the blood stream.

50.

How are the functions of a carbohydrate and a lipid similar?

a)

Both are a source of energy.

b)

Both are replicated during meiosis.

c)

Both lower the activation energy of reactions.

d)

Both dissolve nutrients in the digestive system.

51.

What are the monomers of a lipid?

a)

fat cubes and glycogen

b)

glycerol and amino acids

c)

fatty acids and glycerol

d)

amino acids

52.

Nucleotides are a monomer of which biomolecule?

a)

Nucleic acids

b)

Proteins

c)

Carbohydrates

d)

Lipids

53.
What elements are common to all 4 biomolecules?
a)
Carbon, hydrogen, nitrogen
b)
Carbon, Nitrogen, Phosphorus
c)
Carbon, Hydrogen, Oxygen
d)
Carbon, Hydrogen, Phosphorus
54.
Which biomolecule contains pastas and breads?
a)
Lipid
b)
Protein
c)
Nucleic Acid
d)
Carbohydrate
55.
Which biomolecule helps form muscles?
a)
Nucleic Acid
b)
Carbohydrate
c)
Protein
d)
Lipids
56.
What is the function of nucleic acids?
a)
Stores energy
b)
Stores genetic information
c)
Movement
d)
Physical structure
57.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
58.

Which biomolecules can be DNA and RNA?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

59.
Which biomolecule is also known as enzymes?
a)
Carbohydrate
b)
Lipid
c)
Nucleic Acid
d)
Protein
60.

Which organic molecules is paired with its function?

a)

nucleic acid- to store energy

b)

lipids – to regulate metabolic.

c)

protein- to provide insulation.

d)

carbohydrates – to provide quick-release energy.

61.
What biomolecule do enzymes belong to? 
a)
Carbohydrate
b)
Lipid
c)
Nucleic Acid
d)
Protein
62.

Which biomolecule makes up cell membranes?

a)

Protein

b)

Carbohydrate

c)

Lipid

d)

Nucleic acid

63.
Enzymes catalyze reactions by ___________ Activation Energy.
a)
Increasing
b)
Decreasing
64.

Which type of cell is this?

a)

Prokaryote

b)

Eukaryote

65.
What type of cell has a nucleus? 
a)
eukaryotic
b)
prokaryotic 
66.
Plants and animal cells are examples of ___ cells 
a)
prokaryotic cells 
b)
eukaryotic cells 
67.
Which is true of prokaryotic and eukaryotic cells?
a)
Prokaryotic cells are larger than eukaryotic cells.
b)
Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
c)
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
d)
Eukaryotic cells are simpler than prokaryotic cells.
68.

Which type of cells has a chloroplast?

a)

Prokaryote

b)

Plant Cell

c)

Animal Cell

69.

All of the following contain a cell wall except:

a)

prokaryotes

b)

animal cells

c)

plant cells

d)

bacteria

70.

Which do BOTH prokaryotes and eukaryotes contain?

a)

nucleus

b)

mitochondria

c)

ribosomes

d)

cell wall

71.

Which does only eukaryotic cells contain?

a)

nucleus

b)

DNA

c)

cell membrane

d)

ribosomes

72.

Which organelle is photosynthetic?

a)

cell wall

b)

chloroplast

c)

mitochondria

d)

vesicle

73.

Prokaryotic cells do not have…….

a)

membrane bound organelles

b)

cell membrane

c)

DNA or RNA

d)

life

74.
All living things are made of...
a)
atoms 
b)
cells 
c)
bacteria 
d)
plants 
75.
This is a picture of:
a)
Prokaryote
b)
Eukaryote
76.

Which type of animal cells would have more mitochondria than others?

a)

Blood cells

b)

Brain cells

c)

Skin cells

d)

Muscle cells

77.

Which type of plant cell would have more chloroplasts than others?

a)

Leaf cell

b)

Root cell

c)

Stem cell

d)

Root epidermal cell

78.

You can distinguish a prokaryote apart from a nucleus by--

a)

The presence of a ribosome

b)

The presence of a cell membrane

c)

The presence of DNA

d)

The presence of a nuclear membrane

79.

The main difference between an archaebacteria and a leaf cell is --

a)

A leaf cell contains a cell wall while a bacteria cell does not

b)

A leaf cell contains a nuclear membrane while a bacteria cell does not

c)

A bacteria cell contains a nuclear membrane while a leaf cell does not

d)

A bacteria cell contains a cell wall while a leaf cell does not

80.

Which organelle holds the DNA?

a)

Nucleus

b)

Cell membrane

c)

Cell wall

d)

Mitochondria

81.

Which organelle allows things into and out of the cell?

a)

Mitochondria

b)

Ribosome

c)

Cell membrane

d)

Cell wall

82.

Which organelle gives the cell structure and support?

a)

Vacuole

b)

Cell wall

c)

Nucleus

d)

Chloroplast

83.

Which organelle stores water?

a)

Vacuole

b)

Mitochondria

c)

Chloroplast

d)

Ribosome

84.

Which organelle builds protein?

a)

Mitochondria

b)

Vacuole

c)

Chloroplast

d)

Ribosome

85.

Which organelle is responsible for the process of photosynthesis?

a)

Ribosome

b)

Chloroplast

c)

Cell membrane

d)

Cell wall

86.

Which organelle makes ATP (energy)?

a)

Cell membrane

b)

Cell wall

c)

Mitochondria

d)

Ribosome

87.

Which organelle is larger in plants than in animals?

a)

Vacuole

b)

Mitochondria

c)

Chloroplast

d)

Nucleus

88.

Which organelle is colored purple in this photo?

a)

Vacuole

b)

Mitochondria

c)

Nucleus

d)

Ribosome

89.

Which organelle is colored blue in this photo?

a)

Nucleus

b)

Cell membrane

c)

Cell wall

d)

Vacuole

90.

What organelle is present in all cells?

a)

Cell membrane

b)

Cell wall

c)

Mitochondria

d)

Chloroplast

91.

Which organelle is found only in plant cells?

a)

Cell wall

b)

DNA

c)

Cell membrane

d)

Chloroplast

92.

Which of the following organelles is found in all living cells?

a)

Mitochondria

b)

Chloroplasts

c)

Vacuoles

d)

Ribosomes

93.

Which of the following types of cells DO NOT have a nucleus?

a)

Prokaryotes

b)

Eukaryotes

c)

Plants

d)

Animals

94.

Prokaryotes are always...

a)

Plants

b)

Animals

c)

Bacteria

d)

Eukaryotes

95.
Movement of particles from high to low concentration. 
a)
Passive Transport
b)
Active Transport
96.
a)
Passive Transport
b)
Active Transport
97.
Osmosis is a form of ______________. 
a)
Passive Transport
b)
Active Transport
98.
a)
Passive Transport
b)
Active Transport
99.
a)
Passive Transport
b)
Active Transport
100.
Solutes move with the concentration gradient, therefore no energy is used. 
a)
Passive Transport
b)
Active Transport
101.
Movement of materials from high to low concentration through a protein channel. 
a)
Passive Transport
b)
Active Transport
102.
a)
Passive Transport
b)
Active Transport
103.
a)
Passive Transport
b)
Active Transport
104.
a)
Passive Transport
b)
Active Transport
105.
a)
Passive Transport
b)
Active Transport
106.
ATP is a form of energy.
a)
Passive Transport
b)
Active Transport
107.
Exocytosis
a)
Passive Transport
b)
Active Transport
108.
Endocytosis
a)
Passive Transport
b)
Active Transport
109.
Low to High
a)
Passive Transport
b)
Active Transport
110.
Solutes move against the concentration gradient, therefore energy is needed
a)
Passive Transport
b)
Active Transport
111.
Uses ATP (energy)
a)
Passive Transport
b)
Active Transport
112.
This uses energy
a)
endocytosis
b)
exocytosis
c)
both
113.
This takes substances into a cell
a)
endocytosis
b)
exocytosis
c)
both
114.
What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?
a)
Diffusion
b)
Osmosis
c)
Active Transport
d)
Facilitated Diffusion
115.
What type of transport is occurring in part A of the diagram?
a)
Facilitated Diffusion
b)
Osmosis
c)
Active Transport
d)
Diffusion
116.
What type of transport is occurring in part B of the diagram?
a)
Osmosis
b)
Diffusion
c)
Facilitated Diffusion
d)
Active Transport
117.
What type of transport is occurring in part C of the diagram?
a)
Passive Transport
b)
Osmosis
c)
Active Transport
d)
Facilitated Diffusion
118.
A solution or environment surrounding a cell that has less solutes and more pure water than the cell:
a)
Hypertonic Solution
b)
Hypotonic Solution
c)
Isotonic Solution
d)
Control
119.
A solution or environment surrounding a cell that has more solutes and less pure water than the cell:
a)
Hypertonic Solution
b)
Hypotonic Solution
c)
Isotonic Solution
d)
Control
120.
The cell below is in a _____________ solution.
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
121.
This egg has shrunk, what type of solution was it placed in?
a)
hypotonic solution
b)
hypertonic solution
c)
isotonic solution
d)
active transport
122.
You put a cell into a solution, the cell grows. Is the solution hypotonic or hypertonic to the cell? 
a)
hypertonic
b)
hypotonic
c)
isotonic
d)
not enough information
123.
What type of solution allows water to enter the plant cell?
a)
hypotonic solution
b)
hypertonic solution
c)
isotonic solution
d)
active transport
124.
An ISOTONIC solution has a(n) ______________ concentration of solute (dissolved stuff) than inside the cell.
a)
lower
b)
equal
c)
higher
125.
If a cell is placed in a HYPOTONIC solution, water will move _________ of the cell, causing it to ___________.
a)
into, swell
b)
out of, shrivel
c)
in and out of the cell, stay the same
126.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
127.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
128.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
129.

Is it safe to drink salt water?

a)

Yum, so salty!

b)

No, you could die of dehydration.