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Final Exam: A Review

Total questions: 50

Worksheet time: 51mins

Name
Class
Date
1.

The exchange of gases between plants and the atmosphere takes place in the:

a)

Roots

b)

Stem

c)

Leaves

d)

Flower

2.

The food that plants make is a kind of ____________.

a)

Sugar

b)

Oxygen

c)

Water

d)

Protein

3.

What material changes sunlight to chemical energy?

a)

Cytoplasm

b)

Pollen

c)

Chlorophyll

d)

Leaves

4.

Which gas is important in photosynthesis?

a)

Hydrogen

b)

Carbon dioxide

c)

Oxygen

d)

Nitrogen

5.

Movement of blood from the heart, to the lungs, and back to the heart.

a)

Systemic circulation

b)

Lymphatic circulation

c)

Pulmonary circulation

d)

Coronary circulation

6.

Which statement best explains the function of the respiratory system?

a)

Draws oxygen into the body and expels carbon dioxide from the body

b)

Carries oxygen and nutrients to the cells of the body

c)

Carries waste materials away from the cells of the body

d)

All of the above

7.

A structure that serves as a passage for both air and food thus forming an entrance to both the respiratory and digestive tract.

a)

Pharynx

b)

Larynx

c)

Trachea

d)

Bronchial tube

8.

The vessels which carry the blood away from the heart

a)

Arteries

b)

Veins

c)

Capillaries

d)

Ventricles

9.

The beating sound your heart makes comes from:

a)

The heart skipping beats

b)

Your ears playing tricks on you

c)

Blood going in the wrong direction

d)

Valves closing

10.
Separates the chambers of the heart.
a)
mitral valve
b)
septum
c)
aortic valve
11.
Unoxygenated blood enters the right atrium from the top of the heart.
a)
inferior vena cava
b)
superior vena cava
c)
aorta
12.
Unoxygenated blood enters the right atrium from the bottom of the heart.
a)
inferior vena cava
b)
superior vena cava
c)
pulmonary veins
13.
This chamber of the heart RECEIVES blood returning from the body
a)
Right Atrium
b)
Right Ventricle
c)
Left Atrium
d)
Left Ventricle
14.

This chamber of the heart RECEIVES oxygen rich blood back from the lungs

a)

Right Atrium

b)

Left Atrium

c)

Right Ventricle

d)

Left Ventricle

15.

What does overeating unhealthy fats lead to?

a)

these keep blood vessels clean and smooth

b)

they will cause fat build up in blood vessels

c)

it will cause you to lose sleep

d)

overeating these fats has no effect

16.
The main function of the circulatory system is 
a)
To give the body structure and support
b)
Excrete waste
c)
transport blood, nutrients, and gases throughout the body
d)
to transport messages from the body to the brain
17.

This is the biggest muscle of the body responsible for the expansion and contraction of the lungs.

a)

Heart

b)

Lungs

c)

Diaphragm

d)

Liver

18.

If a sperm with a “Y” chromosomes fertilizes the egg, the offspring would be a ______________.

a)

Male

b)

Female

c)

Allele

d)

Chromosomes

19.

An individual who has two of the same allele.

a)

Homozygous

b)

Heterozygous

c)

Dominant

d)

Recessive

20.

These are the threadlike structures in the nucleus?

a)

Nuclei

b)

Ribosomes

c)

Mitochondria

d)

Chromosomes

21.
Which of these describes a species that has become extinct?
a)
fewer members of the species are dying than being born
b)
more members of the species are dying than being born
c)
very few members of a species are alive
d)
all members of a species have died
22.
Which of the following species is extinct?
a)
woolly mammoth
b)
giant panda
c)
bald eagle
d)
green sea turtle
23.

Occurs when the last member of that species dies.

a)

Threatened

b)

Endangered

c)

Extinction

d)

Diversified

24.
Which of the following is NOT a reason a species may become extinct?
a)
competition
b)
reproducing
c)
habitat loss
d)
overhunting
25.

Ernest Rutherford is credited for the discovery of –

a)

Deoxyribonucleic acid (DNA)

b)

The nucleus of the atom

c)

The piezoelectric effect

d)

The moons of Jupiter

26.

When is an atom stable?

a)

When it has the same amount of electrons as protons

b)

When it has a full outer orbit

c)

When it has an odd number of valence electrons

d)

When it has no neutrons

27.

One of the following does not contain the element carbon.

a)

Water

b)

Diamond

c)

Baking Soda

d)

Ethanol

28.

Two or more atoms chemically joined together form _____________.

a)

A compound

b)

A solution

c)

A mixture

d)

A nucleus

29.

Which of the following units is used in expressing the amount of substance in terms of the number of particles?

a)

Gram

b)

Mole

c)

Grams/Mole

d)

Percent

30.
What is the chemical symbol for the element Iron
a)
I
b)
Ir
c)
Fe
d)
fe
31.
What is the chemical symbol for the element Calcium
a)
C
b)
Ca
c)
Cl
d)
CL
32.
What is the chemical symbol for the element Fluorine
a)
F
b)
Fl
c)
Flu
d)
f
33.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
34.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
35.
How many carbon atom/s are present in the compounds CaCO3?
a)
1
b)
2
c)
3
d)
4
36.
How many carbon atoms are in butane?
a)
1
b)
2
c)
3
d)
4
37.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
38.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
39.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
40.

Air, rubber, glass and plastic are good _______________.

a)

Insulators

b)

Conductors

c)

Generators

d)

Circuits

41.

It represents the number of electrons at the outermost energy level of the atom.

a)

Atomic Mass

b)

Atomic Number

c)

Valence

d)

Electron Configuration

42.

If the first and second energy levels of an atom are full, then what would be the total number of electrons in the atom?

a)

6

b)

8

c)

10

d)

18

43.

What kind of particle is produced after covalent bonding?

a)

Ion

b)

Atom

c)

Molecule

d)

Element

44.

An element X contains 20 protons, 5 neutrons and 20 electrons. The mass number of the element X is -

a)

20

b)

25

c)

5

d)

40

45.

What do you expect to observe in a “Mole Exhibit of Different Substances?

a)

different colors of substances

b)

showcase of 1mole of different elements having different masses

c)

showcase of 1mole of different substances having the same masses

d)

different kind of elements

46.

The molecular formula for a carbon and hydrogen compound is C8H18. What is the empirical formula?

a)

C8H18

b)

C9H4

c)

C18H8

d)

C4H9

47.

Calculate the molar mass of KOH. (K=39.10, O=16.00 and H=1.00)

a)

28.10 g/mol

b)

56.10 g/mol

c)

84.10 g/mol

d)

112.10 g/mol

48.

You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements. (S=32.06 and O=16.00)

a)

SO

b)

SO2

c)

SO3

d)

SO4

49.

What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18? (C=12.01, H=1.00 and O=16.00)

a)

CH2O

b)

C2H4O2

c)

C4H8O4

d)

C6H12O6

50.

What is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g. (K=39.10, S=32.06 and O=16.00)

a)

K2SO4

b)

K8SO16

c)

K8S4O8

d)

K8S4O16

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