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Final Exam spring 2022

Total questions: 115

Worksheet time: 1hrs 24mins

Name
Class
Date
1.

Identify the cell organelles found only in plant cells .

a)

Nucleus

b)

cell wall

c)

chloroplast

d)

Golgi apparatus

e)

ribosome

2.

Viruses do not possess all the characteristics of life. Identify those characteristics that viruses display .

a)

made up of one or more cells

b)

has a defined boundary

c)

uses energy

d)

exhibits growth and development

e)

possesses internal organization

3.

The structure labeled as X is the 

a)

Cell wall

b)

Nucleus

c)

Chloroplast

d)

Vacuole

e)

Mitochondria

4.

The cell in the image is a 

a)

Prokaryote

b)

Eukaryote

5.

The cell in the image is a

a)

Plant Cell

b)

Animal Cell

6.

The structure labeled as y is the 

a)

Cell wall

b)

Nucleus

c)

Chloroplast

d)

Vacuole

e)

Mitochondria

7.

The structure labeled as w is the 

a)

Cell wall

b)

Nucleus

c)

Chloroplast

d)

Vacuole

e)

Mitochondria

8.

The structure labeled as z is the 

a)

Cell wall

b)

Nucleus

c)

Chloroplast

d)

Vacuole

e)

Mitochondria

9.

The __________ gets rid of cell waste by breaking down large molecules into smaller ones for the cell to excrete.

a)

lysosome

b)

ribosome

c)

nucleus

10.

The ______________ helps these waste molecules exit the cell.

a)

cell membrane

b)

Golgi apparatus

c)

endoplasmic reticulum

d)

nucleus

11.

Correctly label each organelle.

G

a)

Golgi apparatus

b)

mitochondrion

c)

rough endoplasmic reticulum

d)

ribosome

e)

nucleus

12.

Correctly label each organelle. B

a)

Golgi apparatus

b)

mitochondrion

c)

rough endoplasmic reticulum

d)

ribosome

e)

nucleus

13.

Match each cell organelle with its description.

digestion organelles that break down biomolecules into smaller molecules

a)

chloroplasts

b)

cilia and flagella

c)

mitochondria

d)

lysosomes

e)

endoplasmic reticuli

14.

Match each cell organelle with its description.

digestion organelles that break down biomolecules into smaller molecules

thread like structures that assist in movement 

a)

chloroplasts

b)

cilia and flagella

c)

mitochondria

d)

lysosomes

e)

endoplasmic reticuli

15.

Match each cell organelle with its description.

digestion organelles that break down biomolecules into smaller molecules

thread like structures that assist in movement 

a)

chloroplasts

b)

cilia and flagella

c)

mitochondria

d)

lysosomes

e)

endoplasmic reticuli

16.

Match each cell organelle with its description.

contain chlorophyll andare the site of photosynthesis 

a)

chloroplasts

b)

cilia and flagella

c)

mitochondria

d)

lysosomes

e)

endoplasmic reticuli

17.

Match each cell organelle with its description.

the sites of cellular respirationand energy production 

a)

chloroplasts

b)

cilia and flagella

c)

mitochondria

d)

lysosomes

e)

endoplasmic reticuli

18.

Match each cell organelle with its description.

tube-like structures that are the site of protein and lipid synthesis 

a)

chloroplasts

b)

cilia and flagella

c)

mitochondria

d)

lysosomes

e)

endoplasmic reticuli

19.

Which cell organelle underwent a change that caused this plant to wilt and droop?

a)

cytoplasm

b)

 lysosomes

c)

vacuoles

d)

cell membrane

e)

cell wall

20.

Which cell organelle helps the plant maintain its structure during such stress?

a)

cytoplasm

b)

 lysosomes

c)

vacuoles

d)

cell membrane

e)

cell wall

21.

Megan observes four cells under a microscope and makes sketches of them as shown. Which of the cells are prokaryotic.

a)
b)
c)
d)
22.

Which condition is required for viruses to reproduce?

a)

They must enter another virus structure.

b)

They must enter the cell of another organism.

c)

They must come in contact with water.

d)

They must encounter a virus with genetic material different from their own.

23.

Which statement forms part of cell theory?

a)

Cell organelles are capable of reproducing themselves.

b)

Cells differ in shape, but they have identical components.

c)

All cells begin life as prokaryotic cells.

d)

All living things are made up of cells.

24.

Why is the nucleus considered the command center of the cell?

a)

It contains the genetic instructions for every function of the cell.

b)

It is the cell’s powerhouse and processes energy for the cell.

c)

It is the organelle present in both prokaryotic and eukaryotic cells.

d)

It is responsible for packaging proteins for delivery out of the cells.

25.

Why is the cell theory considered a scientific theory?

a)

A. It was formed over 100 years ago.

b)

It is an explanation that is well supported.

c)

It has always been proven to be correct.

d)

D. It was proposed by several scientists.

26.

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?

a)

defining the cell's structure and shape

b)

protecting the cell from physical harm

c)

preventing the phospholipid tails from binding together

d)

allowing specific substances to flow into the cell

27.

Proteins on the surface of vesicles determine where the vesicles go. Which cell organelle provides the instructions for these proteins?

a)

endoplasmic reticulum

b)

lysosome

c)

mitochondria

d)

nucleus

28.

A group of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. If the mitochondria were unharmed, what would happen to the overall function of the plant cells?

a)

The cells would not be able to break down waste, but would be able to replicate DNA.

b)

The cells would not be able to make food, but would be able to release energy from biomolecules.

c)

The cells would not be able to release energy from biomolecules, but would be able to make food.

d)

The cells would not be able to replicate DNA, but would be able to break down waste.

29.

What is a difference between prokaryotic and eukaryotic cells?

a)

Prokaryotic cells do not have a nucleus, but eukaryotic cells do.

b)

Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.

c)

Prokaryotic cells always have cell walls, but eukaryotic cells do not.

d)

Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do.

30.

What technological advancement was necessary before scientists could begin to observe cells?

a)

invention of the microscope

b)

invention of the balance

c)

invention of the telescope

d)

invention of the thermometer

31.

What feature of cells is best demonstrated in the image?

a)

Cells are the basic units of structure and make up tissues.

b)

All organisms have cells with different shapes and functions.

c)

All organisms are made up of a large number of cells.

d)

Cells are formed from other cells within the same tissue.

32.

A particle can infect humans and make them sick. It attaches to a host cell and injects its RNA, which the host uses to make proteins for the particle. This particle cannot reproduce on its own and can only copy itself by using the machinery of the host.

Which explains whether the particle described is a virus or a cell?

a)

The particle is a virus because it does not use energy and cannot reproduce by itself.

b)

The particle is a virus because it has genetic information and can infect humans.

.

c)

The particle is a cell because it does not make proteins and cannot reproduce by itself.

d)

The particle is a cell because it has genetic information and attaches to other cells

33.

What is a biomolecule?

a)

The dissolved particle in a solution

b)

One of the by-products of respiration

c)

Large molecule that is present in living organisms

d)

None of the above

34.

Which of the following are biomolecules?

a)

RNA, DNA, proteins, lipids

b)

Proteins, lipids, carbohydrates, polymers

c)

Nucleic acid, lipids, carbohydrates, monomers

d)

Proteins, lipids, carbohydrates, nucleic acids

35.

The function of the nucleic acid is --

a)

to store and transmit genetic information inherited from your parents

b)

to maintain our body temperature

c)

to build up muscles bones and other body parts

d)

to regulate sugar in your blood and give your cells energy

36.

What are lipids?

a)

Polymers made of amino acids

b)

Monomers that store and transfer genetic information

c)

Fatty acids not generally soluble in water

d)

Complex carbohydrates like starch

37.

Which of the following is a characteristic of carbohydrates?

a)

Provides structure for cells

b)

Provides energy for all cellular activities

c)

Contain complex carbohydrates known as starches

d)

All of the above

38.

Which of the following is a characteristic of protein?

a)

Made up of amino acids and regulate cellular processes

b)

Fats, oils, and waxes

c)

Complex carbohydrates known as starches

d)

DNA and RNA

39.

Which biomolecule makes up cell membranes?

a)

Protein

b)

Carbohydrate

c)

Lipid

d)

Nucleic acid

40.

Which biomolecule is helpful for long term energy storage?

a)

Nucleic acid

b)

Protein

c)

Carbohydrate

d)

Lipid

41.

Which biomolecule is useful for a fast source of energy?

a)

Lipid

b)

Nucleic acid

c)

Protein

d)

Carbohydrate

42.

Which biomolecule is important for insulation?

a)

Lipid

b)

Proteins

c)

Carbohydrates

d)

Nucleic acid

43.

What is the monomer for proteins?

a)

Amino acid

b)

Nucleotide

c)

Fatty acid

d)

Monosaccharide

44.

Which monomer makes up nucleic acids?

a)

Amino acid

b)

Nucleotide

c)

Fatty acid

d)

Monosaccharide

45.

What is the monomer for carbohydrates?

a)

Amino acid

b)

Nucleotide

c)

Fatty acid

d)

Monosaccharide

46.

Which monomer makes up lipids?

a)

Amino acid

b)

Nucleotide

c)

Fatty acid

d)

Monosaccharide

47.

Which two biomolecules are made up only of carbon, hydrogen, and oxygen?

a)

Protein and Nucleic Acid

b)

Protein and Lipid

c)

Carbohydrate and Lipid

d)

Carbohydrate and Nucleic Acid

48.

Carbon, hydrogen, oxygen, nitrogen, and phosphorous make up which biomolecule?

a)

Protein

b)

Carbohydrates

c)

Lipids

d)

Nucleic acid

49.

Which biomolecule contains carbon, hydrogen, oxygen, and nitrogen?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic acid

50.

Which contains carbon, hydrogen, oxygen and has a ring-like structure?

a)

Nucleic acid

b)

Carbohydrates

c)

Proteins

d)

Lipids

51.

What is the Law of Conservation of Mass?

a)

It states that matter cannot be created or destroyed.

b)

It states that energy cannot be created or destroyed.

c)

It states that matter can be created or destroyed.

d)

It states that sound can be created or destroyed.

52.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
53.
Which problem is balanced?
(Check ALL answers)
a)
PbO2 + 2H2
b)
SO2 + H20 --> H2SO4
c)
2Na + 2H2O --> 2NaOH + H2
54.
Which of the following is an unbalanced equation?
a)
CaCO3 --> CaO + CO2
b)
PbO2 + 2H2-->2Pb + H2O
c)
2Na+ 2H2O-->2NaOH + H2
d)
CS2 + 2O2 --> CO2 + 2SO2
55.

Balance this equation

_Al +_HCl --> _H2 +_AlCl3

a)

2,6,3,2

b)

it's already balanced

c)

4,12,3,4

d)

2,1,4,5

56.
Is the following equation balanced?
4Fe + 3O2 --> 2Fe2O3
a)
yes
b)
no
57.

Balance this equation:

H2 + Cl2 ---> HCl

a)

It is balanced.

b)

H2 + Cl2 ---> 2HCl

c)

3H2 + Cl2 ---> 6HCl

d)

H2 + 3Cl2 ---> 6HCl

58.

Balance this equation:

HgO ---> 2Hg + O2

a)

It is balanced.

b)

2HgO ---> 2Hg + O2

c)

2HgO ---> Hg + O2

d)

HgO ---> Hg + 2O2

59.

Balanced this equation:

Sb2S3 + O2 ---> Sb + SO2

a)

It is balanced.

b)

Sb2S3 + O2 ---> 2Sb + SO2

c)

Sb2S3 + 3O2 ---> 2Sb + 3SO2

d)

3Sb2S3 + 3O2 ---> 2Sb + SO2

60.

Determine the coefficients to balance the equation.

__Al +__HCl --> __H2 +__AlCl3

a)

2,6,3,2

b)

it's already balanced

c)

4,12,3,4

d)

2,1,4,5

61.

Balance the following equation:

___ SeCl6+ ___ O2→___ SeO2+____Cl2

a)

1, 1, 1, 3

b)

2, 1, 2, 1

c)

1, 2, 1, 2

d)

2, 2, 2, 4

62.
A sealed test tube containing 8 grams of iron filings and 5 grams of sulfur is heated until the material in the test tube glows bright red.  What is the mass of products? 
a)
Mass is less than 13 grams
b)
Mass is equal to 13 grams
c)
Mass is greater than 13 grams
d)
Mass cannot be measured
63.

Samuel adds a teaspoon of salt to a glass of water. He notices that the salt disappears. Samuel takes a sip to discover that the water tastes salty. What kind of change has occurred?

a)

It’s a chemical reaction because a new substance has formed.

b)

It’s a physical change because the water and the salt kept their original properties.

c)

It’s an example of synthesis because two substances reacted to give one substance.

d)

It’s a chemical reaction because the water now tastes salty but originally did not.

64.

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?

a)

carbon + oxygen + carbon dioxide

b)

carbon + oxygen → carbon dioxide

c)

carbon dioxide → carbon + oxygen

d)

carbon dioxide + carbon → oxygen

65.

Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this?

a)

combustion

b)

decomposition

c)

synthesis

d)

replacement

66.

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?

a)

combustion

b)

decomposition

c)

single replacement

d)

synthesis

67.

In certain fireworks, potassium nitrate breaks down into potassium oxide, nitrogen, and oxygen. This is an example of a (a)   (combustion,

decomposition, replacement, synthesis) reaction.

68.

Water breaks down into hydrogen and oxygen.

a)

neutralization

b)

combustion

c)

synthesis

d)

decomposition

69.

Leaves make starch using chlorophyll and carbon dioxide.

a)

neutralization

b)

combustion

c)

synthesis

d)

decomposition

70.

Food burns in oxygen gas and releases a lot of energy.

a)

neutralization

b)

combustion

c)

synthesis

d)

decomposition

71.

Adding vinegar (acid) to baking soda (alkali) give sa product that is neither acidic nor alkaline.

a)

neutralization

b)

combustion

c)

synthesis

d)

decomposition

72.

Not all tiles will be used. Match the reactants with the products.

copper + oxygen →\rightarrow  

a)

aluminum chloride + copper

b)

zinc sulfate + copper

c)

copper oxide

d)

copper sulfate + oxygen

e)

copper + water

73.

Not all tiles will be used. Match the reactants with the products.

aluminum + copper chloride →\rightarrow  

a)

aluminum chloride + copper

b)

zinc sulfate + copper

c)

copper oxide

d)

copper sulfate + oxygen

e)

copper + water

74.

Not all tiles will be used. Match the reactants with the products.

copper oxide + hydrogen →\rightarrow  

a)

aluminum chloride + copper

b)

zinc sulfate + copper

c)

copper oxide

d)

copper sulfate + oxygen

e)

copper + water

75.

Not all tiles will be used. Match the reactants with the products.

copper sulfate + zinc →\rightarrow  

a)

aluminum chloride + copper

b)

zinc sulfate + copper

c)

copper oxide

d)

copper sulfate + oxygen

e)

copper + water

76.

Identify the following process: We light a matchstick.

a)

Physical change

b)

Chemical change

77.

What type of changes the appearance change but the substance is the same.

a)

Physical

b)

Chemical

78.

Identify the following process: The food and the air react.

a)

Physical change

b)

Chemical change

79.

The initial substances before occurring the chemical reaction are called...

a)

Reactants

b)

Products

80.

The new substances after occurring the chemical reaction are called...

a)

Reactants

b)

Products

81.

What is the speed of this chemical reaction (rusting)

a)

SLOW

b)

FAST

82.
What is the speed of this chemical reaction
a)
SLOW
b)
FAST
83.
What is this ?
a)
a chemical reaction
b)
a mathematical equation
c)
a chemical equation
84.
What is this ?
a)
a chemical reaction
b)
a mathematical equation
c)
a chemical equation
85.

The mass conservation law says

a)

During a chemical reaction, atoms are destroyed. The number of atoms don't remains constant throughout the reaction.

b)

During a chemical reaction, atoms are created. The number of atoms remains constant throughout the reaction.

c)

During a chemical reaction, atoms are neither created nor destroyed. The number of atoms remains constant throughout the reaction.

86.

During photosynthesis, solar energy is transformed into ____________

energy.

a)

chemical

b)

electrical

c)

solar

d)

kinetic

87.

Lyndon is investigating whether putting plastic on her windows will help seal out cold winter drafts. She covers a window on the south side of her house with plastic and measures the inside temperature near the window. She also measures the inside temperature near a window without plastic on the north side of her house. The windows are the same size and design.


Why is this not an ideal controlled investigation?

a)

A. The windows should be different sizes to introduce variation.

b)

B. The drafts at each window may be different because the windows aren’t near each other.

c)

C. Temperature isn’t a good indicator of cold winter drafts.

d)

D. Outside temperature is a better indicator of cold winter drafts than inside temperature.

e)

E. The type of plastic used in the investigation isn’t mentioned.

88.

Select all the correct answers.


Andrew walks through his garden and observes that the shapes of dewdrops are not always the same. Suppose he wants to investigate using the scientific method. Which questions are testable questions that he can ask to look into the reasons for the different shapes?

a)

Does the shape of the dewdrop depend on the temperature of the surface?

b)

Which dewdrop seems to have the most unusual shape?

c)

Is the material of the surface responsible for the shape of the dewdrop?

d)

Which shape of dewdrop is the most pleasing to the observer?

e)

Does the shape of the dewdrop depend on the moisture in the atmosphere?

89.

Andy has two samples of liquids. Sample A has a pH of 4, and sample B has a pH of 6.


What can Andy conclude about these two samples?


Sample A is _________.

a)

neutral

b)

alkali

c)

acidic

90.

Andy has two samples of liquids. Sample A has a pH of 4, and sample B has a pH of 6.


What can Andy conclude about these two samples?


Sample B is ____________.

a)

neutral

b)

alkali

c)

acidic

91.

Martina has a sample of an unknown substance. She measures the substance. Its mass is 13.5 grams, and its volume is 5 cm3.


Which metal might her sample be made of?

a)

silver

b)

copper

c)

iron

d)

aluminum

92.

Salt is dissolved in a flask of tap water. Distilling the mixture causes the salt to separate from the water. Which type of energy is required to begin the distilling process?

a)

A. chemical energy

b)

B. electrical energy

c)

C. mechanical energy (motion)

d)

D. thermal energy

93.

A chemist is trying to identify a sample of metal that is listed in this table. She passes an electrical current through the sample and finds that, of the metals listed in the table, it’s one of the best conductors. Then she heats the metal to 1000°C, which is the highest temperature her heater allows. The metal doesn’t melt. Which type of metal does the chemist have?

a)

A. aluminum

b)

B. copper

c)

C. zinc

d)

D. silver

e)

E. nickel

94.

Dalton’s completing an investigation in the science lab. He observes that a sample of liquid turns to gas at 135°C. What’s this temperature called?

a)

A. boiling point

b)

B. freezing point

c)

C. melting point

d)

D. room temperature

e)

E. standard temperature

95.

Which property of a substance can be determined using a pH indicator?

a)

A. acidity

b)

B. boiling point

c)

C. density

d)

D. electrical conductivity

e)

E. thermal conductivity

96.

Foods cook faster when placed in a pressure cooker. This is because the pressure on the surface of the water is ___________________ normal.

a)

higher than

b)

lower than

c)

the same as

97.

Foods cook faster when placed in a pressure cooker. This is because the atmospheric pressure, and the boiling point of water is ___________________ normal.

a)

higher than

b)

lower than

c)

the same as

98.

Select all the correct answers.


What happens to water when it changes to ice?

a)

Its density increases.

b)

Its density decreases.

c)

Its mass increases.

d)

Its volume decreases.

e)

Its volume increases.

99.

Which sentence describes an example of sublimation?

a)

A. Dew forms on leaves on a cold morning.

b)

B. Liquid deodorant sprayed on a person’s body evaporates.

c)

C. Dry ice changes to carbon dioxide gas when kept in an open container.

d)

D. Ice cream in a bowl melts.

e)

E. Water vapor condenses on a cold surface and forms droplets.

100.

The image shows a portion of the periodic table.


Which two elements have similar characteristics?

a)

A. neon and fluorine

b)

B. chlorine and sulfur

c)

C. fluorine and chlorine

d)

D. oxygen and chlorine

e)

E. argon and fluorine

101.

In the periodic table of elements, what do all of the elements in group 2 have in common?

a)

A. An atom of each element can hold up to eight electrons in its outer energy level.

b)

B. An atom of each element can hold up to six electrons in its outer energy level.

c)

C. Each element is an alkaline earth metal.

d)

D. Each element is a halogen.

e)

E. Each element is dull, brittle, and breaks easily.

102.

Classify each characteristic as either a metal .

a)

shiny surface

b)

dull surface

c)

brittle

d)

poor conductor of heat

e)

good conductor of electricity

103.

Identify Bohr's model of the atom. His model describes the reactivity of an element based on its number of valence electrons.

a)
b)
c)
d)
104.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

105.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

106.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

107.

Phase change going from a Solid to a Liquid...

a)

Freezing

b)

Condensation

c)

Melting

d)

Sublimation

108.

Mathew has a filtration kit, which consists of a funnel, a flask, and filter papers. Which of these mixtures can he separate using filtration?

a)
b)
c)
d)
109.

An electric iron is used to remove wrinkles from clothing. The electric iron is made of metal. Which property of this substance is most useful for this application?

a)

A. boiling point

b)

B. density

c)

C. electrical conductivity

d)

D. thermal conductivity

110.

Which of the following property does not describe a compound:

a)

it is composed of two or more elements

b)

it is a pure substance

c)

constituents cannot be separated by physical means

d)

mixed in any proportion by mass

111.

What type of mixture would coffee be?

a)

homogeneous

b)

heterogeneous

112.

What type of mixture would a bottle of shampoo be?

a)

homogeneous

b)

heterogeneous

113.

Which of the following is a heterogeneous mixture?

a)

brass

b)

sand

c)

Kool-aid

d)

vanilla yogurt

114.

Convert 5000 mL to KL

a)

.5KL

b)

5KL

c)

50 KL

d)

500KL

115.

How many mL are in 6.5 KL?

a)

0.0065 mL

b)

6,500 mL

c)

65,000 mL

d)

6,500,000 mL

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