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Grade 7 Science Review

Total questions: 89

Worksheet time: 50mins

Name
Class
Date
1.

Which of the following is NOT an advantage of transpiration

a)

removes excess water

b)

Creates suction pull

c)

Lower plant body temperature

d)

transports food

2.

How do plants breathe?

a)

Through the stem

b)

Through the stomata

c)

Through the chloroplast

3.
In which part of the cell does photosynthesis take place?
a)
vacuole
b)
mitochondria
c)
cell wall
d)
chloroplast
4.

What gas is needed in order to perform respiration at the cellular level?

a)

oxygen

b)

carbon dioxide

c)

hydrogen

d)

nitrogen

5.

Cellular respiration takes place in the cells of all organisms.

a)

false

b)

true

6.

Rate of transpiration is low in

a)

.water plants

b)

Forest plant

c)

Desert plant

d)

All of the above

7.

All living organisms respire to get energy from food.

a)

true

b)

false

8.

Jumbled words

a)

tranpirationi

b)

tranpiratoin

c)

transpiration

d)

tiranpition

9.

Who discovered the process of fermentation

a)

Johnes

b)

Pasteur

c)

Buchner

10.

Root of plant also need oxygen to survive?

a)

True

b)

False

11.

Plant can die if overwater?

a)

False

b)

True

12.

plant give a large amount of carbon dioxide in (a)  

13.

During respiration, (a)   gas enter the plant.

14.

Name this process

a)

respiration

b)

photosynthesis

c)

gaseous exchange

15.

Product of photosynthesis are

a)

carbon dioxide and glucose

b)

oxygen and glucose

c)

water and glucose

16.

Ultimate source of energy for all living organisms is

a)

Plants

b)

Atmosphere

c)

Earth

d)

Sun

17.

Foods synthesized in the process of Photosynthesis by plants is stored as

a)

Starch

b)

Protein

c)

Vitamins

d)

Fats

18.

Which of the following is not necessary for photosynthesis

a)

Chlorophyll

b)

Carbon dioxide gas

c)

Oxygen

d)

Water

19.

In anaerobic respiration, _______ is not required.

a)

ATP

b)

Glucose

c)

Oxygen

d)

None of these

20.

_________ and respiration processes are complementary to each other.

a)

Photosynthesis

b)

Aerobic respiration

c)

Fermentation

21.

Which of these are the products of aerobic respiration?

a)

Oxygen

b)

38 ATP

c)

2 ATP

d)

Water

e)

Carbon dioxide

22.

How do plants breathe?

a)

Through the stem

b)

Through the stomata

c)

Through the chloroplast

23.

When zoom into a leaf, structure as shown. Name B which can open and close for gaseous exchange in plants.

a)

Lenticel

b)

Stoma

c)

Guard cell

d)

Chloroplast

24.

Which of the following is correct about photosynthesis?

a)

Occur during day and night

b)

Use oxygen (Oxygen in)

c)

Produce water

d)

Use carbon dioxide (Carbon dioxide in)

25.
In which part of the cell does photosynthesis take place?
a)
vacuole
b)
mitochondria
c)
cell wall
d)
chloroplast
26.

Cellular respiration takes place in the cells of all organisms.

a)

false

b)

true

27.

All living organisms respire to get energy from food.

a)

true

b)

false

28.

Name this process

a)

respiration

b)

photosynthesis

c)

gaseous exchange

29.

Breathing is ...

a)

Breaking down food

b)

Making noise

c)

Inhaling and Exhaling Air

d)

Producing energy from food

30.

Respiration is ...

a)

Breaking down food

b)

Making noise

c)

Inhaling and Exhaling Air

d)

Producing energy from glucose

31.
What are the products of aerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
32.
What are the products of anaerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
33.
What type of respiration requires oxygen?
a)
Aerobic
b)
Anaerobic
34.
What type of respiration does not require oxygen?
a)
Aerobic
b)
Anaerobic
35.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
36.
Where in the cell does aerobic respiration take place?
a)
Nucleus
b)
Cytoplasm
c)
Mitochondria
d)
Cell membrane
37.
Which organ excretes carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
38.
What is the molecule called that mitochondria produce when they respire glucose?
a)
ATP
b)
ADP
c)
DNA
d)
80p
39.
What is the waste energy from respiration given off as?
a)
Heat
b)
Light
c)
Sound
d)
Kinetic
40.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
41.
What happens to your pulse when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
42.

Which of the following do we NOT use the energy gained through respiration for:

a)

Movement

b)

Growth and Repair

c)

Sleeping

d)

Building new molecules

43.

What is respiration?

a)

A process that releases energy.

b)

A process the uses energy.

c)

A process that uses water.

d)

A process that makes food.

44.

Respiration happens in the chloroplasts.

a)

True

b)

False

45.

Where does respiration happen in the cell?

a)

Mitochondria

b)

Ribosomes

c)

Chloroplasts

d)

Nucleus

46.

What are the reactants of respiration?

Select two answers.

a)

Glucose

b)

Oxygen

c)

Carbon dioxide

d)

Water

47.

What are the products of respiration?

Select two answers.

a)

Glucose

b)

Oxygen

c)

Carbon dioxide

d)

Water

48.

Which organ removes carbon dioxide from the human body?

(a)  

49.

Which organ absorbs the glucose for respiration?

a)

Large intestine

b)

Small intestine

c)

Stomach

d)

Liver

50.

Finish the equation:


(a)   + Oxygen → Carbon dioxide + Water

51.

What is the energy used for?

Select all the correct answers.

a)

Growth and repair

b)

Muscle contraction

c)

Protein synthesis

d)

Sending nerve impulses

52.

Respiration happens during the day and night in plants.

a)

True

b)

False

53.
Inhale!!!!
Your lungs are ___________  air
a)
taking in
b)
letting out
54.
EXHALE!!!
My lungs are __________________ air. 
a)
taking in
b)
letting out
55.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
56.
What are the main organs of gas exchange in the respiratory system?
a)
diapragm
b)
lungs
c)
trachea
d)
bronchi
57.
What is function of the dome-shaped diaphragm?
a)
This is where gas exchange happens.
b)
Air passes through the diaphragm on the way to the lungs.
c)
It attaches to the lungs to help in breathing.
d)
It is under the lungs and keeps them from falling down to your stomach.
58.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
59.
What is the function of the bronchi?
a)
Transport air from nose to lungs
b)
Transport air from trachea to lungs
c)
Transport air from lungs to alveoli
d)
Transport air from alveoli to blood
60.
A disorder of the lungs called ____ causes the bronchi to become restricted (get smaller) so air can't get to the lungs.
a)
asthma 
b)
cold
c)
influenza 
d)
bronchitis 
61.
The two main branches from the trachea (one to each lung)
a)
bronchi
b)
alveoli
c)
capillaries
d)
bronchioles
62.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
63.
Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 
a)
trachea 
b)
bronchi 
c)
alveoli
d)
diaphragm
64.
Name the organ label # 6. 
a)
alveoli 
b)
bronchi 
c)
trachea 
d)
lungs 
65.
What is tube that is also known as your wind pipe?
a)
esophogus
b)
bronchi
c)
trachea
d)
alveoli
66.
Name the structure labeled 8 
a)
lungs 
b)
trachea 
c)
diaphragm 
d)
alveoli 
67.
The passageway that is shared by both the digestive and respiratory system is the....
a)
larynx
b)
pharynx
c)
trachea
d)
nose
68.
Flap of skin that covers the opening to the windpipe during swallowing
a)
Stomach
b)
Trachea
c)
Pancreas
d)
Epiglottis
69.
The Pharynx is the muscle that moves the lungs
a)
True
b)
False
70.

Number 1 and 2 are pointing to.......

a)

The nose and nasal passage.

b)

The mouth and trachea.

c)

The bronchus and bronchioles.

d)

The nose and alveoli.

71.

Which number is pointing to the trachea?

a)

7

b)

6

c)

9

d)

4

72.

Which number is pointing to the diaphragm?

a)

8

b)

7

c)

6

d)

5

73.

Which numbers point to the right and left lungs?

a)

5 and 10

b)

10 and 11

c)

5 and 15

d)

15 and 16

74.

The blue tubes that branch from the trachea are called ____.

a)

bronchi

b)

alveoli

c)

larnyx

d)

throat

75.

In which part of the lung does gas exchange occur?

a)

bronchus

b)

trachea

c)

bronchiole

d)

alveoli

76.

What do the vessels carry that run around the aveoli?

a)

red blood cells

b)

white blood cells

c)

plasma

d)

platelets

77.

What gas is added to the blood cells and which gas is taken away in the lungs?

a)

Oxygen is added and carbon dioxide is removed.

b)

Carbon dioxide is added and oxygen is removed.

c)

Nitrogen is added and hydrogen is removed.

d)

Propane is added and methane is removed.

78.

What muscles move the ribs up and out?

a)

Intercostal muscles

b)

Extracostal muscles

c)

Rib muscles

d)

Sternum muscles

79.

Which two muscles contract and create more space in the chest cavity?

a)

diaphragm and intercostals

b)

rib muscles and esophagus muscles

c)

peristalsis and rib muscles

d)

stomach and rib muscles

80.

Why does the pleural cavity have fluid?

a)

This fluid provides oxygen for the lungs.

b)

This fluid keeps the lungs from getting thirsty.

c)

This fluid provides lubrication for the lungs to expand and contract.

d)

This fluid keeps the lungs clean.

81.

How does the extra space created by your diaphragm and rib muscles contracting affect the air pressure inside your chest cavity?

a)

The air pressure increases.

b)

The air pressure decreases.

c)

The air pressure does not change.

d)

The air pressure fluctuates.

82.

How does an increase in air pressure in your chest cavity affect your lungs?

a)

Air rushes in to the lungs.

b)

Air is forced out of the lungs.

c)

The lungs are not affected.

d)

Air does not move in or out.

83.

When the space inside your chest cavity decreases air pressure ___________.

a)

increases

b)

decreases

c)

stays the same

d)

fluctuates

84.

What system moves air into and out of the lungs?

a)

respiratory

b)

circulatory

c)

digestive

d)

muscular

85.

What system moves air into and out of the lungs?

a)

respiratory

b)

circulatory

c)

digestive

d)

muscular

86.

The respiratory system delivers _______ to the blood stream and transports ____________ out of the body?

a)

oxygen, carbon dioxide

b)

carbon dioxide, oxygen

c)

water, gases

d)

nutrients, wastes

87.

Where does the gas exchange occur in the lungs?

a)

trachea

b)

alveoli

c)

bronchi

d)

bronchus

88.

Where is the larynx located?

a)

at the top of the trachea

b)

in your lungs

c)

in your esophagus

d)

in the bronchial tree

89.

If you cannot speak, where might the problem be?

a)

larynx

b)

lungs

c)

trachea

d)

pharnyx

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