Science Focus 2 TEST Chapter 4 - Pearson Australia Media ...

Science Focus 2 TEST
Chapter 4: Body systems
Name: _______________________ Class: __________ Date: _______
Instructions: Write answers in the right-hand column.
Score: ___________ / 109 marks
Section A − Multiple choice (30 marks)
1 Which of the following is not a type of tooth?
A Molar.
B Pre-molar.
C Canine.
D Scissor.
1
2 The crown of a tooth is the
A tip.
B space in the jaw in which the tooth sits.
C part of the tooth above the gum.
D inner cavity of the tooth.
1
3 Which of the following is the odd one out?
A Digestive tract.
B Gut.
C Alimentary canal.
D Kidney.
1
4 How much fluid does the digestive system produce each day?
A 1 L
B 2 L
C 8 L
D 16 L
1
5 Peristalsis is
A the chewing of food in the mouth.
B the contraction and relaxation of muscles that moves food through the
alimentary canal.
C the absorption of broken-down food into the bloodstream.
D the clumping together of faeces in the large intestine.
1
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Science Focus 2 TEST
Chapter 4: Body systems
6 Which of the following is/are not found in the digestive system?
A Perpoofer valve.
B Sphincters.
C Villi.
D Chyme.
1
7 The liver may be described as
A a J-shaped organ.
B a chemical factory.
C the smallest digestive organ.
D the longest organ.
1
8 The scientific name for released digestive gases is
A sulfur dioxide.
B flatus.
C fartus.
D odourus unpleasantus.
1
9 When matter is moved more slowly than usual through the digestive system,
which of the following is more likely to occur?
A Diarrhoea.
B Heartburn.
C Constipation.
D Vomiting.
1
10 The tiny filtration units in your kidneys are called
A nephrons.
B filtrons.
C urinators.
D ureters.
1
11 Dialysis is the medical term for
A a kidney transplant.
B kidney failure.
C filtering of blood by a machine.
D a build-up of poisonous wastes in the blood.
1
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 4: Body systems
12 Kidney stones can cause extreme pain. A recently developed method to
eliminate kidney stones uses
A ultrasound.
B lasers.
C chemicals.
D surgery.
1
13 The function of plasma is to
A fight infection.
B carry carbon dioxide.
C carry the red blood cells, white blood cells and platelets around the body.
D determine blood type.
1
14 The pulmonary vein carries
A deoxygenated blood to the lungs.
B newly oxygenated blood to the lungs.
C deoxygenated blood to the rest of the body (not the lungs).
D newly oxygenated blood to the heart.
1
15 Which of the following refers to a lower heart chamber?
A Atrium.
B Septum.
C Ventricle.
D Valve.
1
16 Which of the following is closest to a normal ECG?
1
A
B
C
D
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 4: Body systems
17 An artery may become narrowed due to a build-up of
A dead blood cells.
B cholesterol.
C angina.
D polyunsaturates.
1
18 What two recent scientific developments have helped heart sufferers?
A Ultrasonic treatment.
B Chemicals to lower cholesterol.
C Heart valves and pacemakers.
D Polyunsaturates.
1
19 What fraction of the human body is made up of water?
1
A
B
C
D
1
10
1
3
1
2
2
3
20 Which of the following shows the approximate percentages of three major gases
in inhaled air?
A 50% nitrogen, 49% oxygen, 1% carbon dioxide.
B 79% nitrogen, 21% oxygen, 0.04% carbon dioxide.
C 79% nitrogen, 14% oxygen, 6% carbon dioxide.
D 59% nitrogen, 41% oxygen, 0.04% carbon dioxide.
1
21 Which of the following is not a property of alveoli?
A Their cell walls are only one cell thick.
B They lie close to the walls of capillaries.
C They have a dry surface to allow efficient diffusion.
D They are shaped to give maximum surface area.
1
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Science Focus 2 TEST
Chapter 4: Body systems
22 Most oxygen is transported in the bloodstream
A bound to haemoglobin.
B as gaseous oxygen molecules.
C bound to platelets.
D as dissolved carbon dioxide molecules and hydrogen carbonate ions.
1
23 We need fibre because
A it contains large amounts of vitamins and minerals.
B it provides bulk which helps move substances through the digestive system.
C it is the major source of energy in foods.
D it is used for growth and repair.
1
24 Pasta, bread and rice are foods that are all rich in
A carbohydrates.
B proteins.
C fats.
D vitamin C.
1
25 Which of the following diseases is caused by a lack of vitamins?
A Hepatitis C.
B AIDS.
C Scurvy.
D Polio.
1
26 Which two of the following are minerals?
A Calcium.
B Potassium.
C Folic acid.
D Riboflavin.
1
27 From which one of the following categories should you have most serves each
day for a healthy diet?
A Vegetables.
B Meat and meat alternatives.
C Breads and cereals.
D Milk and milk products.
1
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 4: Body systems
28 Which food item is high in kilojoules and high in calcium?
A Ice-cream.
B Can of soft drink.
C Hamburger.
D Margarine.
1
29 Obesity
A is an eating disorder in which sufferers unrealistically perceive they need to
lose weight.
B involves binge eating followed by purging.
C is a condition in which a person is more than 24 per cent overweight.
D is a town where a large number of OBE recipients reside.
1
30 Respiration is a chemical reaction which
A occurs only in the body cells of animals.
B always has oxygen as a reactant.
C involves a sequence of reactions.
D is endothermic (absorbs energy).
1
Section B − Written answers (79 marks)
1 Identify the tooth type for the function
of
a biting.
b grinding.
c cutting.
3
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Science Focus 2 TEST
Chapter 4: Body systems
2 Label the tooth diagram below with the
tooth type and function where indicated.
4
3 Explain how acid is created in the
mouth, and what can it cause.
2
4 Identify the parts of the digestive
system on the following diagram.
5
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 4: Body systems
5 Identify the location in the digestive
system where
a stools form.
b insulin is produced.
c nutrients pass through villi.
d considerable heat energy is
produced.
e saliva produced.
f peristalsis occurs.
g you find hydrochloric acid.
h digestion begins.
4
6 a Identify the end-product of
digestion that provides energy to
cells.
b How is this substance transported
around the body?
c Give two ways this end-product
is stored in the body.
7 Explain
a a stomach ulcer.
b a possible cause of cirrhosis.
4
2
8 Identify two waste products produced
by cells in your body.
1
9 Classify the following in the order in
which fluid flows, starting with the first
stage.
bladder, kidney, urethra, ureter.
2
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Science Focus 2 TEST
Chapter 4: Body systems
10 Explain the main function of
a red blood cells.
b white blood cells.
c platelets.
d antigens.
4
11 Assess whether a person with type B+
blood could safely
a donate blood to a person with
type B− blood.
b donate to a person with type O+
blood.
c receive blood from a donor with
type O+ blood.
12 Label the heart diagram below. 4
3
13 Identify the type of blood tubes that
a are one cell thick.
b carry blood at low pressure.
c have the thickest outer layer.
3
14 Describe the role of the lungs in the
circulatory system.
2
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Science Focus 2 TEST
Chapter 4: Body systems
15 Identify four structures which air
passes through on its journey from the
atmosphere to the alveoli in your lungs.
4
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Science Focus 2 TEST
Chapter 4: Body systems
16 The questions that follow refer to the
diagram below of the human respiratory
system.
6
Identify the structure shown (use the
numbers 1 to 8 to answer) that
a prevents food from entering the
trachea.
b contracts and flattens when you
breathe in.
c filters, warms and humidifies air.
d contracts to raise the rib cage
when you breathe in.
e is the site of gaseous exchange
between the lungs and the
bloodstream.
f is a bronchus.
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Science Focus 2 TEST
Chapter 4: Body systems
17 Describe what happens to each of the
following structures during expiration
(breathing out).
a Ribs (raised or lowered?).
b Diaphragm (flattens or is domeshaped?)
c Pressure in the chest cavity
(increases or decreases?).
d Intercostal muscles (contract or
relax?).
18 Identify five types of nutrients, and
give an example of a food rich in each
one.
4
5
19 Identify the part of food or nutrient that
a assists chemical reactions in the
body.
b repairs body tissue.
c is required in small amounts for
good health.
d provides a rich source of energy.
20 Classify the following in order from
least required each day to most required
each day for a healthy diet.
fruits, indulgence items, milk and milk
products, breads and cereals,
vegetables, meat and alternatives.
21 a Describe the process of aerobic
respiration by writing a chemical
equation.
b State whether the reaction is
exothermic or endothermic.
c Define the process of aerobic
respiration.
4
3
4
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.

Science Focus 2 TEST
Chapter 4: Body systems
22 Describe the function of an enzyme. 2
23 Identify
a the two products of anaerobic
respiration in yeast cells.
b two industrial uses of the
anaerobic respiration reaction in
yeast cells.
c the product of anaerobic
respiration in human muscle
cells.
24 Recall two reasons why a person at rest
would need energy.
3
2
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.