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Biology Midterm Quiz

Total questions: 119

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

What are the properties of water?

a)

Acids, Bases, Buffers, Chemical Reactions

b)

Thermal, Chemical, Light, Kinetic

c)

Cohesion, Adhesion, Universal Solvent, High Specific Heat Capacity

d)

Atoms, Elements, Compounds, Chemical Reactions

2.

What is the difference between aerobic and anaerobic respiration?

a)

Aerobic respiration produces more ATP than anaerobic respiration

b)

Aerobic respiration occurs in the absence of oxygen, while anaerobic respiration requires oxygen

c)

Aerobic respiration occurs in plants, while anaerobic respiration occurs in animals

d)

Aerobic respiration requires oxygen, while anaerobic respiration occurs in the absence of oxygen

3.

What is the role of buffers in biological systems?

a)

Buffers resist a drastic change in pH

b)

Buffers increase the pH of a solution

c)

Buffers decrease the pH of a solution

d)

Buffers have no role in biological systems

4.

What is the relationship between photosynthesis and cellular respiration?

a)

Photosynthesis and cellular respiration are the same process

b)

Photosynthesis produces oxygen, while cellular respiration produces carbon dioxide

c)

Photosynthesis and cellular respiration are unrelated processes

d)

Photosynthesis converts light energy into chemical energy, while cellular respiration converts chemical energy into ATP

5.

What are the main groups of organic molecules?

a)

Carbohydrates, Lipids, Proteins, Nucleic Acids

b)

Acids, Bases, Buffers, Chemical Reactions

c)

Atoms, Elements, Compounds, Chemical Reactions

d)

Thermal, Chemical, Light, Kinetic

6.

What is the role of adenosine triphosphate (ATP) in cells?

a)

ATP is the immediate energy source for cells

b)

ATP is a byproduct of cellular respiration

c)

ATP is involved in the process of compound formation

d)

ATP has no role in cells

7.

What is the process of photosynthesis?

a)

Glucose + Oxygen -> Water + Carbon Dioxide

b)

Glucose + Oxygen -> Water + Carbon Dioxide + 34 ATP

c)

Water + Carbon Dioxide -> ATP + Oxygen

d)

Water + Carbon Dioxide -> Glucose + Oxygen

8.

What is the process of cell respiration, including reactants and products?

a)

Water + Carbon Dioxide -> ATP + Oxygen

b)

Glucose + Oxygen -> Water + Carbon Dioxide

c)

Glucose + Oxygen -> Water + Carbon Dioxide + 34 ATP

d)

Water + Carbon Dioxide -> Glucose + Oxygen

9.

What is the role of enzymes in biological reactions?

a)

Enzymes speed up the rate of biological reactions

b)

Enzymes slow down the rate of biological reactions

c)

Enzymes have no role in biological reactions

d)

Enzymes stop biological reactions

10.

What is the role of chlorophyll in photosynthesis?

a)

Chlorophyll absorbs light energy and converts it into chemical energy

b)

Chlorophyll releases oxygen during photosynthesis

c)

Chlorophyll has no role in photosynthesis

d)

Chlorophyll absorbs carbon dioxide during photosynthesis

11.

What is the role of mitochondria in cellular respiration?

a)

Mitochondria absorb light energy for photosynthesis

b)

Mitochondria produce ATP during cellular respiration

c)

Mitochondria have no role in cellular respiration

d)

Mitochondria release oxygen during cellular respiration

12.

Biology is the study of:

a)

animals and plants only

b)

living things

c)

the land, water, and air on Earth

13.

Which of the following is a quantitative observation?

a)

Many teachers drive minivans.

b)

Last week we got 8 inches of snow.

c)

Teachers often wear jeans

14.

Which biomolecule is made of fatty acids and glycerol?

a)

lipids

b)

proteins

c)

carbohydrates

15.

Which of the following is an example of a lipid?

a)

fat

b)

RNA

c)

sugar

16.

Which of the following is a qualitative observation?

a)

The tree is 20 feet tall.

b)

The water is cold.

c)

There are 15 students in the class.

17.
What is the difference between aerobic and anaerobic environments?
a)
Anaerobic uses oxygen and aerobic does not
b)
Aerobic and anaerobic environments both use oxygen
c)
Aerobic uses oxygen and anaerobic does not
d)
Aerobic and anaerobic both do not use oxygen
18.
Photosynthesis uses solar energy from the sun to create
a)
High energy sugars like glucose
b)
High energy proteins
c)
High energy lipids
d)
High energy nucleic acids
19.
How are photosynthesis and cellular respiration related processes?
a)
Both provide plant cells with energy
b)
Both provide animal cells with energy
c)
The reactants of respiration are the products of photosynthesis.
d)
The reactants of respiration are the reactants of photosynthesis.
20.
What is an enzyme?
a)
A biological catalyst that works in living cells to speed up chemical reactions.
b)
A biological catalyst that works outside living cells to speed up chemical reactions.
c)
A protein that increases activation energy
d)
A product of chemical reactions.
21.
Which organelle provides your body the energy it needs to function?
a)
Chloroplast
b)
Lysosome
c)
Mitochondria
d)
Golgi apparatus
22.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
23.

1 A substance made up of two or more chemically combined elements is —

a)

an element

b)

mixture

c)

compound

d)

solution

24.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
25.
A substance made of only one type of atom is called —
a)
an element
b)
a mixture
c)
a compound
d)
a salt
26.

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

a)

an element

b)

compound

c)

mixture

d)

suspension

27.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
28.

This picture represents which of the following?

a)

A single element

b)

Mixture of molecules

c)

mixture of atoms

d)

mixture of compounds

29.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

30.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
31.

Iron

a)

Ir

b)

In

c)

Fe

d)

FE

32.

Potassium

a)

P

b)

K

c)

Pt

d)

k

33.

Which compound is best represented by this particle diagram?

a)

NH3

b)

H2O

c)

CH4

d)

HCl

34.

Which compound is best represented by this particle diagram?

a)

C2H6

b)

C6H12O6

c)

CO2

d)

NaCl

35.

How many types of atoms are in K₂SO₄

a)

7

b)

3

c)

2

d)

4

36.

How many total atoms are in K₂SO₄

a)

7

b)

2

c)

4

d)

3

37.

The oxygen atom in water is slightly ____.

a)

negative

b)

positive

38.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
39.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
40.
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
41.
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.
42.
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
43.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
44.
 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
45.
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
46.
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
47.
When a molecule has an opposite electrical charge on each end, it is known as what?
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
48.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
49.

The fact that water can stick to other substances is called:

a)

Ph

b)

Adhesion

c)

Cohesion

d)

Insulation

50.

What is an Arrhenius acid?

a)

A substance that produces H+ in water.

b)

A substance that produces OH- in water.

51.

What is an Arrhenius base?

a)

A substance that produces H+ ion in water

b)

A substance that produces OH- ion in water.

c)

A substance that produces OH+ ion in water

d)

A substance that produces H- ion in water.

52.

What is an Arrhenius acid?

a)

A substance that produces H+ in water.

b)

A substance that produces OH- in water.

53.

What is an Arrhenius base?

a)

A substance that produces H+ ion in water

b)

A substance that produces OH- ion in water.

c)

A substance that produces OH+ ion in water

d)

A substance that produces H- ion in water.

54.

A student tests an unknown aqueous solution and finds it conducts electricity and turns litmus paper red. What can the student infer?

a)

The solution contains an acid.

b)

The solution contains a base.

c)

The solutions is neutral.

55.

A student tests an unknown aqueous solution and finds it conducts electricity and turns litmus paper blue. What can the student infer?

a)

The solution contains an acid.

b)

The solution contains a base.

c)

The solutions is neutral.

56.

​ (a)   conduct electricity and turn litmus paper red.

Choose from the below words
Acids
Bases
Neutral solutions
Salts
57.

Label the acid, base, conjugate acid and conjugate base.

a)acid
b)base
c)conjugate acid
d)conjugate base
1
2
3
4
1)
2)
3)
4)
58.

Click on the acid.

A
B
C
D
59.

Click on the base.

A
B
C
D
60.

Click on the conjugate base.

A
B
C
D
61.

Click on the conjugate acid.

A
B
C
D
62.

Which of the following is a Bronsted-Lowry Conjugate acid-base pair.

a)

HCl and NaOH

b)

H3O+ and OH-

c)

H2SO4 and HSO4-

d)

H2S and S2-

63.

According to Bronsted-Lowry, what does an acid do?

a)

It donates a proton (H+).

b)

It accepts a proton (H+)

c)

It produces H+ in water.

d)

It produces OH- in water.

64.

According to Bronsted-Lowry, what does a base do?

a)

It donates a proton (H+).

b)

It accepts a proton (H+)

c)

It produces H+ in water.

d)

It produces OH- in water.

65.

What is the name of HCl?

a)

hydrochloric acid

b)

chloric acid

c)

hypochloric acid

d)

chlorous acid

66.

What is the name of HClO3?

a)

hydrochloric acid

b)

chloric acid

c)

hypochloric acid

d)

chlorous acid

67.

A student tests an unknown aqueous solution and finds it conducts electricity and turns litmus paper blue. What can the student infer?

a)

The solution contains an acid.

b)

The solution contains a base.

c)

The solutions is neutral.

68.

Label the acid, base, conjugate acid and conjugate base.

a)acid
b)base
c)conjugate acid
d)conjugate base
1
2
3
4
1)
2)
3)
4)
69.

Click on the acid.

A
B
C
D
70.

Click on the base.

A
B
C
D
71.

According to Bronsted-Lowry, what does an acid do?

a)

It donates a proton (H+).

b)

It accepts a proton (H+)

c)

It produces H+ in water.

d)

It produces OH- in water.

72.

According to Bronsted-Lowry, what does a base do?

a)

It donates a proton (H+).

b)

It accepts a proton (H+)

c)

It produces H+ in water.

d)

It produces OH- in water.

73.

What is the name of HCl?

a)

hydrochloric acid

b)

chloric acid

c)

hypochloric acid

d)

chlorous acid

74.
Strong acids and bases...
a)

do not break apart into ions (non-electrolyte)

b)

partially break apart into ions (weak electrolyte)

c)

completely break apart into ions (non-electrolyte)

d)

completely break apart into ions (strong electrolyte)

75.

Acids, also known as ​ (a)   , will turn litmus paper ​ (b)   . This is because they have a pH ​ (c)   . They taste ​ (d)   .

Choose from the below words
H+
red
below 7
sour
bitter
above 7
blue
76.

Bases, also known as ​ (a)   will turn litmus paper ​ (b)   . This is because they have a pH ​ (c)   . They taste ​ (d)   .

Choose from the below words
alkali and OH-
blue
above 7
bitter
below 7
H+
red
sour
77.

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of OH- ions?

a)

vinegar

b)

milk

c)

water

d)

bleach

78.

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of H+ ions?

a)

vinegar

b)

milk

c)

water

d)

bleach

79.

An unknown substance was tested and found to have an extremely high concentration of hydroxide ions, OH-. and very low concentration of hydronium ions, H3O+. Which pH would make the most sense?

a)

pH = 2

b)

pH = 6

c)

pH = 8

d)

pH = 12

80.

If a solution has a pH of 1.5, then litmus would turn

a)

red

b)

purple

c)

blue

d)

yellow

81.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
82.

If John was wanted to see what color of light plants grow under the best which of these would be a variable in the experiment.

a)

The type of plant

b)

Height of the plant

c)

Color of the light the plant is in

d)

How much water you give it

e)

All of these answers

83.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
84.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
85.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
86.
Dependent variable means
a)
the scientist controls what to test
b)
educated guess
c)
ask a question
d)
what is being measured
87.
What is a factor that the experimenter has full control over and changes to see what happens?
a)
Dependent Variable
b)
Independent Variable
c)
Control group 
d)
Hypothesis
88.
What is a factor that changes because of what the experimenter does?
a)
Dependent Variable
b)
Independent Variable
c)
Control Group
d)
Hypothesis
89.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
90.

These are variables that are kept the same throughout all experimental groups to prevent error in the experiment.

a)

Independent Variable

b)

Dependent Variable

c)

Controlled Variable

d)

Varying Variable

91.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the dependent variable?
a)
The Song
b)
The Reed
c)
The Applause
92.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?
a)
The Song
b)
The Reed
c)
The Applause
93.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was controlled?
a)
The Song
b)
The Reed
c)
The Applause
94.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
95.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?
a)
Type of plant, amount of music, and sunlight
b)
Water, apple juice, milk
c)
Plant growth
96.
Which of the following is an observation about this picture?
a)
The boy has fallen off his bike.
b)
The boy is in a lot of pain.
c)
The boy has injuries to his knees
d)
The boy learned his lesson about wheelies
97.
Which of the following statements is an inference about the picture
a)
The vase is broken.
b)
The girls' bow is blue and purple.
c)
The girl broke the vase.
d)
The girl has blonde hair.
98.
Look around your classroom (but not at another student's computer). What is an observation you see?
a)
The lab table is black.
b)
This quiz is hard!
c)
I am hungry.
d)
I love science!
99.
Scenario: you walk into the science classroom and see an unfamiliar adult at the front of the room. You also see that Mr. Lundberg is not in the room. You wonder where he could be.
Which one(s) are observations?
a)
You walk into science.
b)
You see an unfamiliar adult.
c)
You wonder where Mr. Lundberg could be.
d)
None of these are observations
100.
Which of these statements is NOT an observation about this picture?
a)
There is a red candle on the window sill.
b)
The moon is full.
c)
It is Christmas time.
d)
There's snow on the tree.
101.
Observations like measurements are ____________ observations
a)
quantitiative
b)
qualitative
c)
operational
d)
scientific
102.
Scenario: You are shopping at Safeway. You hear glass breaking, a person cursing, and the sharp smell of pickle juice coming from the next aisle. 
Based on the scenario, what do you infer (inference)?
a)
The pickle jar was slippery.
b)
Someone dropped a jar of pickles.
c)
All of these are inferences.
d)
That person is having a bad day.
103.
Observations like the color or texture of an object are ________________ observations.
a)
quantitative
b)
qualitative
c)
operational
d)
scientific
104.
In the scientific process, which comes first?
a)
Observation: using your senses to gather information
b)
Inference: explain data based on prior knowledge
c)
Prediction: anticipate a future event
d)
Hypothesis: a testable explanation for a set of data
105.

The one factor that a scientist controls during an experiment. This goes on the x-axis.

a)

Independent Variable

b)

Dependent Variable

106.

The variable that is measured. It goes on the y-axis.

a)

Independent Variable

b)

Dependent Variable

107.

Changes in the _________ variable cause changes in the _________ variable.

a)

independent; dependent

b)

dependent; independent

108.
On a graph, which axis shows the independent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
109.
On a graph, which axis shows the dependent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
110.
How many total students are in the science class?
a)
13
b)
6
c)
27
d)
25
111.
How many students scored between 95 and 100?
a)
6
b)
6
c)
9
d)
14
112.
The x-axis shows
a)
time
b)
carbon dioxide concentration
c)
Mauna Loa volcano
d)
science
113.
The y-axis shows
a)
time
b)
carbon dioxide concentration
c)
Mauna Loa volcano
d)
science
114.
This data set shows that
a)
there is more CO2 in the atmosphere now than ever before
b)
Hawaii will be most affected by global warming
c)
global temperatures are rising
d)
there is more CO2 in Hawaii than anywhere else
115.

When should a pie chart be used?

a)

When comparing parts of a whole

b)

When showing change over time

c)

When comparing data between different groups of categories

d)

Whenever you want

116.

When should a line graph be used?

a)

When comparing parts of a whole

b)

When showing change over time

c)

When comparing data between different groups of categories

d)

Whenever you want

117.

When should a bar graph be used?

a)

When comparing parts of a whole

b)

When showing change over time

c)

When comparing data between different groups of categories

d)

Whenever you want

118.

According to the pie chart, what uses the most water in a house?

a)

Shower

b)

Faucet

c)

Clothes Washer

d)

Toilet

119.

According to the pie chart, how much of a house's water usage is for showers?

a)

26.7%

b)

13.7%

c)

21.7%

d)

16.8%

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