8/19/2019 quizz 8b

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8B

Exploring Science edition © Pearson Education Limited 2008

Quick Quiz 2

8Ba

1 What is digested food used for in our bodies?

A to provide carbon dioxide

B to provide oxygen

C to provide energy and chemicals to make

new substances

D to provide energy only

2 What is the name of the process that releases

energy in our bodies?A respiration B excretion

C reproduction  D photosynthesis

3 Living cells in the bodies of animals all

produce a gas that turns limewater milky.

This gas is:

A nitrogen.  B oxygen.

C carbon dioxide. D carbon monoxide.

4 When glucose is burnt with oxygen, carbondioxide and water are produced. The word

equation for this is:

A oxygen + glucose carbon dioxide + water 

B carbon dioxide + water glucose + oxygen

C glucose + oxygen carbon dioxide + water 

D glucose + oxygen = water + carbon dioxide

8Bb

1 The heart and blood vessels make up the:

A digestive system.  B breathing system.

C nervous system. D circulatory system.

2 You can feel a pulse in your wrist. You feel

one pulse beat for each:

A beat of your heart. B minute.

C second. D breath you take.

3 The smallest blood vessels are called:A arteries. B veins.

C tributaries. D capillaries.

4 The heart has two halves. This is because:A one half pumps blood around the body

one way, and the other half pumps blood

around the body in the other direction.

B one half pumps blood, and the other half

pumps air.

C one half pumps blood to the lungs, and

the other half pumps blood around the rest

of the body.

D one half is not used except in anemergency.

8Bc

1 When you exercise:

A your pulse rate stays the same, but your

breathing rate goes up.

B your pulse rate goes up, and your

breathing rate goes up.C your pulse rate goes down, but your

breathing rate goes up.

D your pulse rate goes up, but your breathing

rate goes down.

2 Which of these could not cause muscle tissue

to die?

A The blood vessel leading to it becomes

blocked.

B The blood vessel contains blood that is

being pumped very quickly.

C The blood supplying it contains a poison.

D The blood supplying it carries more oxygen

than normal.

On your answer sheet, write in the correct letter for each question.

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8/19/2019 quizz 8b

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8B

Exploring Science edition © Pearson Education Limited 2008

Quick Quiz 2 (continued)

3 How is carbon dioxide transported around

the body?

A carried on red blood cells

B dissolved in the plasma

C carried on white blood cells

D as a gas

4 When Mary starts to run there is an increase

in the amount of blood flowing through her

blood vessels. Which of these explains why

this needs to happen?

A Cells need more oxygen, and more carbon

dioxide must be removed.B Cells need more carbon dioxide, and more

oxygen must be removed.

C There are greater amounts of oxygen and

carbon dioxide that need to be removed

 from cells.

D Cells need more oxygen and more carbon

dioxide.

8Bd

1 Oxygen entering the bood would pass

through the following lung structures in the

order:

A bronchus trachea air sac alveoli.

B trachea bronchus alveoli air sac.

C alveoli trachea bronchus air sac.

D trachea bronchus air sac alveoli.

2 Which of these is not a way in which the

lungs are adapted to their job?

A The capillary walls are thick.

B There are many alveoli.

C There are many capillaries.

D The air sac walls are thin.

3 What is breathing?

A air moving in and out of the lungs

B when glucose and oxygen react to form

carbon dioxide and water 

C when oxygen is taken into the lungs

D muscles making the lungs change size

4 Mucus lines the air passages and traps dirt

and tiny organisms called microbes. It is

moved up and out of the lungs by tiny hairs

called:

A cilia. B villi.

C filaments.

D bristles.

8Be

1  Exhalation is the correct scientific term for:

A bad breath B breathing out.

C breathing in. D breathing.

2 What substance can be used to test for the

presence of carbon dioxide?

A iodine solution B limewater C oxygen D cobalt chloride

3 The air around you contains:

A more oxygen and more water vapour than

the air in your lungs.

B more oxygen and less carbon dioxide than

the air in your lungs.

C more carbon dioxide and less oxygen than

the air in your lungs.

D more carbon dioxide and less water vapour

than the air in your lungs.

4 What do fish use to take oxygen out of the

water?

A lungs B gills

C swim bladders D noses

 

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