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PMA 2 Comprehensive Review

Total questions: 100

Worksheet time: 5hrs 0mins

Name
Class
Date
1.

Location inside of a plant cell where the process of photosynthesis occurs.

a)

leaves

b)

mitochondria

c)

chloroplasts

d)

chlorophyll

2.

A gas that plants release during photosynthesis

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

3.

A gas that plants take in through small holes in their leaves for the process of photosynthesis.

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

4.

Taken in by the leaves of the plant to give the chloroplasts energy for food production.

a)

chlorophyll

b)

oxygen

c)

water

d)

sunlight

5.

Where does Photosynthesis take place in a plant cell?

a)

Nucleus

b)

Chloroplast

c)

cytoplasm

d)

mitochondria

6.

What are the two products of photosynthesis?

a)

oxygen and carbon dioxide

b)

sunlight and carbon dioxide

c)

sugar and oxygen

d)

water and oxygen

7.

Pigment in green plants that capture the energy in sunlight is called __________

a)

Greenplasts

b)

chlorophyll

c)

stomata

d)

chloroplasts

8.

Which of the following is the correct equation for photosynthesis?

a)

CO2 + light + H2O ---> O2 + Sugar

b)

CO2 + sugar + water --> O2 + light

c)

O2 + light + water ---> sugar + CO2

d)

CO2 + O2 + light ---> sugar + water

9.

What is the purpose of Photosynthesis?

a)

to release energy

b)

for growth

c)

to create glucose

d)

to get oxygen for respiration

10.

A gas that plants take in through small holes in their leaves for the process of photosynthesis.

a)

oxygen

b)

methane

c)

propane

d)

carbon dioxide

11.

Which of the following is the correct equation for photosynthesis?

a)

CO2 + light + H2O ---> O2 + Sugar

b)

CO2 + sugar + water --> O2 + light

c)

O2 + light + water ---> sugar + CO2

d)

CO2 + O2 + light ---> sugar + water

12.

___ is the process that cells use to take energy from glucose.

a)

cellular respiration

b)

photosynthesis

c)

transpiration

d)

excretion

13.

___ cells use the process of cellular respiration.

a)

nearly all

b)

mostly plant

c)

mostly animal

d)

mostly fungi

14.

The ___ is the cell part (organelle) inside cells where cellular respiration happens.

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

ribosome

15.

In a cell, the mitochondria is like the ___.

a)

powerhouse

b)

kitchen

c)

control center

d)

highway system

16.

___ is needed for cellular respiration, it is absorbed from the air.

a)

oxygen

b)

glucose

c)

carbon dioxide

d)

water

17.

___ is needed for cellular respiration, it comes from food.

a)

glucose

b)

water

c)

oxygen

d)

carbon dioxide

18.

The primary purpose of cellular respiration is to produce ___.

a)

ATP

b)

sugar

c)

glucose

d)

heat

19.

Both ___ are leftover as waste products after cellular respiration.

a)

water & carbon dioxide

b)

oxygen & glucose

c)

carbon dioxide & oxygen

d)

water & oxygen

20.

Cellular respiration and photosynthesis are ___.

a)

exact opposites

b)

basically the same

c)

not related in any way

d)

not important for life

21.

Cellular respiration ___ energy.

a)

releases

b)

stores

c)

creates

d)

destroys

22.

Cellular respiration ___ glucose molecules.

a)

breaks

b)

makes

c)

shakes

d)

wakes

23.

Which of the following is the word equation for cellular respiration?

a)

glucose + oxygen ---> ATP + carbon dioxide + water

b)

carbon dioxide + water ---> ATP + glucose + oxygen

c)

glucose + water ---> ATP + carbon dioxide + oxygen

d)

glucose + carbon dioxide ---> ATP + oxygen + water

24.
The change of state from a gas to a liquid
a)
condensation
b)
deposition
c)
evaporation
d)
sublimation
25.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
26.

A phase change from liquid to gas is called ...

a)

condensation

b)

vaporization

c)

sublimation

d)

deposition

27.
The change from liquid to solid is called ________________.
a)
Melting
b)
Freezing
c)
Evaporation
d)
Condensation
28.

Melting is a process that changes _____________________________.

a)

solid to liquid

b)

liquid to solid

c)

liquid to gas

d)

gas to liquid

29.

Condensation occurs when you _______ thermal energy.

a)

add

b)

remove

30.

Melting occurs when you _______ thermal energy.

a)

add

b)

remove

31.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

32.

What phase of matter exists in part C of the graph?

a)

Gas

b)

Liquid

c)

Solid

d)

Plasma

33.

What phase change occurs when you start at D and end at E?

a)

Freezing

b)

Melting

c)

Condensing

d)

Vaporization

34.

What is the boiling point of this substance?

a)

100 oC

b)

60 oC

c)

-60 oC

d)

20 oC

35.

Density is _____________.

a)

Mass/Volume

b)

Weight/Volume

c)

Mass/Weight

d)

Volume/Mass

e)

Volume/Weight

36.

If all masses are 20g, which material has the GREATEST volume? (Volume = mass/density)

a)

Oil

b)

Kool-aid

c)

Sprite

d)

Vinegar

37.

If I cut a block of gold in half, what happens to its density?

a)

Density is cut in half.

b)

Density stays the same.

c)

Density doubles.

d)

Density cannot be determined.

38.

The mass of the jade is 13g, what is the density?

a)

1.3 g/mL

b)

0.81 g/mL

c)

1.24 g/mL

d)

0.77 g/mL

39.

What is the same about the cubes?

a)

Density

b)

Weight

c)

Mass

d)

Volume

40.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
41.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture of elements and compounds

42.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
43.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
44.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
45.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
46.
Which is an example of a physical property?
a)
ability to react with acid
b)
 state of matter
c)
flammability
d)
ability to react with oxygen
47.
Which of these is a pure substance?
a)
bread
b)
table salt
c)
garden soil
d)
sea water
48.

Mixtures are different than pure substances because mixtures-

a)

have lower boiling points

b)

can be separated physically

c)

are less dense than pure substances

d)

contain only one type of atom

49.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
50.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
51.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
52.

The subatomic particles that make up an atom.

a)

solid, liquid, gas

b)

electrons, protons, nucleus

c)

energy, protons, nucleus

d)

electrons, protons, neutrons

53.

__________ are negatively charged particles that are in the orbitals around the nucleus.

a)

protons

b)

nucleus

c)

neutrons

d)

electrons

54.

A proton has a ___________ charge.

a)

positive

b)

negative

c)

neutral

d)

massive.

55.

An electron has a _________ charge

a)

positive

b)

neutral

c)

negative

d)

massive

56.
Which is an electron?
a)
A
b)
B
c)
C
57.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
58.

The mass number is always larger than the atomic number.

a)

TRUE

b)

FALSE

59.
How are elements on the periodic table arranged by?
a)
in alphabetic order
b)
simular physical & chemical properties
c)
their symbols
d)
Just simular physical properties
60.
Each column in the periodic table is called a _________ .
a)
period
b)
group
c)
cluster
d)
unit
61.
Two elements chemically bonded form
a)
element
b)
compound
c)
mixture
d)
solutions
62.
Periods on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
63.

The Atomic number is known as the _______

a)

Number of electrons in an atom

b)

Number of Protons in an atom

c)

Number of neutrons in an atom

d)

Number of Protons and electrons in an atom

64.

Elements in the same group have : (2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

65.

If the soil is acidic what we should do to make it neutral

a)

Add salt

b)

Add acid

c)

Add base

d)

Add sugar

66.

If the ph value is 5 what is the substance

a)

Acid

b)

Base

c)

Neutral

d)

Sweet

67.

Products of a neutralization reaction are always:

a)

an acid and a base

b)

an acid and a salt

c)

a salt and water

d)

a salt and a base

68.

When the pH scale goes lower than 7, it means that the substance is ______.

a)

neutral

b)

acidic

c)

basic

d)

salt

69.

The pH of pure water

a)

5.6

b)

7.0

c)

8.1

d)

0.0

70.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
71.

A substance with a ph of higher that 7.5 is a?

a)

Pure Neutral Solution

b)

Base

c)

Acid

d)

Salt

72.

What may happen to light that strikes an object? 

a)

The light may be reflected, refracted or absorbed.

b)

The light may be reflected, transmitted and refracted.

c)

The light may be refracted, absorbed and transmitted.

73.

Which of the following is the best example of an object absorbing light?

a)

A black sweater in the sun.

b)

A clean window in the sun.

c)

A curved mirror in the sun.

d)

A long shadow in the sun.

74.
Which of these describes how light travels through an empty space?
a)
It travels straight but may change direction to avoid objects.
b)
It changes direction often even if there are no objects. 
c)
It comes to a stop after it travels a certain distance. 
d)
It travels in a straight line without stopping. 
75.

Which has more energy than visible light?

a)

Microwaves

b)

Radio waves

c)

Infrared light

d)

Gamma rays

76.
Sound travels FASTEST through which of these materials?
a)
Air
b)
Empty space
c)
Metal
d)
Water
77.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
78.
How are light waves and sound waves similar?
a)
The both carry matter & energy
b)
They both carry energy.
c)
They both travel in vacuums.
d)
They both carry matter.
79.

Which wave in the diagram has the greatest wavelength?

a)

1

b)

2

c)

3

d)

4

80.

Why do diamonds look so shiny?

a)

They absorb light waves.

b)

The reflect light waves.

c)

Light is refracted as it passes through.

81.

Sound waves travel faster than light waves.

a)

True

b)

False

82.

A student placed a pencil in a cup of water. The pencil appears broken because light

a)

always travels in a straight line.

b)

slows down when it passes through water.

c)

makes the water in the glass evaporate.

d)

reflects the pencil on the water's surface.

83.
In what medium does light travel the fastest?
a)
vacuum
b)
air
c)
water
d)
glass
84.

Thermal energy is transferred from ________ temperature to _____________ temperature.

a)

lower, higher

b)

higher, lower

c)

same, same

d)

higher, higher

85.

In conduction, when one part of the object is heated, the particles ________

a)

vibrate more vigorously, collide with adjacent particles and transfer energy

b)

vibrate more slowly and transfer energy

c)

expand due to the heat and allow the hotness to flow.

d)

flow from one of the object to other.

86.

Which of the following statements is true about temperature?

a)

The faster the particles move, the lower the temperature.

b)

The faster the particles move, the higher the temperature.

c)

The slower the particles move, the higher the temperature.

d)

The slower the particles move, the temperature is still the same.

87.

When does the transfer of heat stops from one body to another body?

a)

When the other body reach its high temperature

b)

When there is no more thermal energy in each body.

c)

When the temperatures of the objects are 100°C apart.

d)

When thermal equilibrium is reached.

88.

George holds an ice cube in his hand. As he squeezes the ice, it begins to melt. Which of the following best explains why this happens?

a)

George releases cold to the ice.

b)

Heat moves from George's hand into the cube.

c)

Cold moves from the ice onto George’s hand as it melts.

d)

George absorbs heat from the ice.

89.

John has a fever. His mother puts a cold towel on his forehead. Which of the following is correct?

a)

Heat flows from John's forehead to the towel.

b)

Heat flows from the towel to John's forehead.

c)

Temperature flows from John's forehead to the towel.

d)

Temperature flows from the towel to John's forehead.

90.

The transfer of heat in a fluid or a liquid caused when hotter, less dense fluids rise and cooler, more dense fluids sink.

a)

convection

b)

conduction

c)

radiation

d)

kinetic energy

91.

When moving fluids result in a transfer of heat in a cycle, it is called a _______

a)

heat transfer

b)

insulator

c)

convection current

d)

conductor

92.

Rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions

a)

Mitochondria

b)

Golgi Apparatus

c)

Ribosomes

d)

Endoplasmic Reticulum

93.

Organelle in the cells of plants and some other organisms that captures energy from sunlight and changes it to an energy form that cells can use in making food

a)

Cell Wall

b)

Chloroplast

94.

What two organelles are NOT in an animal cell?

a)

Cell Membrane and Mitochondria

b)

Nucleus and Ribosomes

c)

Cell Wall and Chloroplasts

d)

Golgi Body and Lysosomes

95.

Name this organelle

a)

Ribosomes

b)

Vacuole

c)

Nucleus

d)

Chloroplast

96.

Creates energy for ALL cells, the powerhouse of the cell

a)

Nucleolus

b)

Vacuole

c)

Cytoplasm

d)

Mitochondria

97.

Creates energy for some cells using sunlight, the solar panel of the cell

a)

Vacuole

b)

Chloroplast

c)

E.R.

d)

Ribosomes

98.

Name this organelle

a)

Cell Wall

b)

Mitochondria

c)

Nucleus

d)

Vacuole

99.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
100.

What are plants that convert energy from the sun called?

a)

decomposer

b)

primary consumer

c)

secondary consumer

d)

producer

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