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3.1.2 Transport in animals SYI

Total questions: 124

Worksheet time: 2hrs 43mins

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22.

Why is the left wall of the heart have a thicker layer of muscle than the right side?

a)

To stop the blood flowing backwards

b)

To push the blood with more force at high pressure so it goes to all body cells.

c)

To push the blood at high pressure to the lungs.

23.

List the structures in the circulatory system the blood travels through from vena cava to aorta.

a)

Vena cava, lungs, pulmonary vein, left atrium, left ventricle, aorta, right atrium, right ventricle, pulmonary artery,

b)

Vena cava, left atrium, right ventricle, pulmonary vein lungs, pulmonary artery, right atrium, left ventricle, aorta

c)

Vena cava, right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta

24.

Why do veins and the heart have valves?

a)

To stop the backflow of blood

b)

To contract to push the blood under high pressure

c)

To cause the pulse

25.

Which blood vessel carries blood at the highest pressure?

a)

Arteries

b)

Veins

c)

Capillaries

26.

Which blood vessel contains valves?

a)

Arteries

b)

Veins

c)

Capillaries

27.

Which blood vessel carries blood away from the heart?

a)

Arteries

b)

Veins

c)

Capillaries

28.

Which blood vessel carries blood towards the heart?

a)

Arteries

b)

Veins

c)

Capillaries

29.

What blood vessel transports deoxygenated blood from the body to the heart?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

30.

What blood vessel transports deoxygenated blood from the heart to the lungs?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

31.

What blood vessel transports oxygenated blood from the lungs to the heart?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

32.

What blood vessel transports oxygenated blood from the heart to the body?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

33.

What blood vessel provides the heart with its own blood supply?

a)

Vena Cava

b)

Aorta

c)

Coronary Artery

d)

Pulmonary Artery

34.

Which chamber of the heart receives blood from the vena cava?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

35.

Which chamber of the heart sends blood to the aorta?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

36.

Which chamber of the heart sends blood to the lungs?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

37.
a)

A

b)

B

c)

C

d)

D

38.

Which diagram shows the human double circulatory system?

a)

A

b)

B

c)

C

d)

D

39.

The diagram shows a double circulatory system. Which vessels carry oxygenated blood?

a)

1 and 2

b)

1 and 4

c)

2 and 3

d)

2 and 4

40.

The diagram shows the circulatory system of a mammal.

What describes the blood in vessels X and Y?

a)

X: deoxygenated

Y: deoxygenated

b)

X: deoxygenated

Y:oxygenated

c)

X:oxygenated

Y: deoxygenated

d)

X: oxygenated

Y: oxygenated

41.

What happens when the left ventricle contracts?

a)

atrioventricular valves: closed

semilunar valves: closed

b)

atrioventricular valves: closed

semilunar valves: open

c)

atrioventricular valves: open

semilunar valves: closed

d)

atrioventricular valves: open

semilunar valves: open

42.

The diagram shows the directions of blood flow through a heart.


Which chamber of the heart receives blood directly from the lungs?

a)

A

b)

B

c)

C

d)

D

43.
The valves between the atria and ventricles are known as the ________ valves.
a)
atrioventricular
b)
aortic
c)
semilunar
d)
pulmonary
44.
The term that means heart contraction is ________.
a)
diastole
b)
systole
c)
tachycardia
d)
fibrillation
45.
The heart sounds "lub" and "dup" result from ________. 
a)
opening of the heart valves
b)
firing of the nodes of the intrinsic conduction system
c)
blood rushing through the chambers
d)
closure of heart valves
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69.

Which of the following is true about formation of oxyhemoglobin?

a)

it forms when pO2 is low and dissociates when pCO2 is low

b)

it forms when pO2 is low and dissociates when pCO2 is high

c)

it forms when pO2 is high and dissociates when pCO2 is high

d)

it forms when pO2 is high and dissociates when pCO2 is low

70.

How is myoglobin structurally different to hemoglobin?

a)

myoglobin contains one heme and one globin group

b)

myoglobin contains two heme and two globin groups

c)

myoglobin contains three heme and three globin groups

d)

myoglobin contains magnesium instead of iron

71.

Which of the following are true of myoglobin?


I. it has a higher affinity for oxygen than adult hemoglobin

II. it is used to store oxygen in muscles

III. it becomes fully saturated with oxygen at lower partial pressures of oxygen than adult hemoglobin

a)

I and II only

b)

I and III only

c)

II and III only

d)

I, II and III

72.

Using the graph, what does graph A represent?

a)

graph of fetal haemoglobin

b)

graph of sickle celled haemoglobin

c)

graph of adult haemoglobin

d)

graph of denatured haemoglobin

73.

Using the graph, which of the following is true about myoglobin?

a)

it is proteinous in nature

b)

it does not readily release its oxygen until partial pressure of oxygen starts falling below 40mmHg

c)

it only releases it's oxygen when haemoglobin has released all its oxygen

d)

compared to adult haemoglobin, it releases more oxygen when partial pressure reduces from 60mmHg to 30mmHg

74.

The Bohr effect causes …………………………..

a)

shift B to happen

b)

shift A to happen

c)

affinity of haemoglobin for oxygen to increase

d)

affinity of haemoglobin for carbon dioxide to increase

75.

Where in the Hb molecule do molecules of oxygen bind?

a)

To the haem group

b)

To amino acids in the polypeptide chains

c)

In the cytoplasm of the erythrocyte

d)

In the plasma

76.

Which ion does Haemoglobin (Hb) contain in the haem group?

a)

Chloride

b)

Iron (Fe2+)

c)

Iron (Fe3+)

d)

Protons

77.

The main blood vessel responsible for taking oxygenated blood to the body is the

a)

pulmonary artery

b)

aorta

c)

vena cava

d)

pulmonary veins

78.

What is the name of the molecule formed when oxygen binds to haemoglobin?

a)

oxyhaemoglobin

b)

oxygen-haemoglobin

c)

carbaminohaemlobin

d)

oxyglobin

79.

Oxyhaemoglobin gives up O2 when …

a)

CO2 partial pressures are high

b)

Body temperature is lowered

c)

pH values are high

d)

O2 partial pressure are high

80.

The Bohr Effect/Shift moves the oxygen saturation curve in what direction

a)

up and left

b)

down and right

c)

down and left

d)

up and right

81.

What colour line represents the oxygen saturation curve during intense exercise?

a)

blue

b)

black

c)

red

82.

Each haemoglobin molecule can bind reversibly with

a)

one atom of oxygen

b)

one molecule of oxygen

c)

two molecules of oxygen

d)

four molecules of oxygen

83.

Normally in the blood, hemoglobin is saturated with oxygen only up to

a)

80%

b)

95%

c)

75%

d)

50%

84.

ECG stand for

a)

Electrocardiograph

b)

Electrocardiogram

c)

Electrocardiopraphy

d)

Electronicardiogram

85.

ECG is a reading that shows

a)

the activity of heart

b)

the electrical activity of cardiac muscle

c)

the systole and diastole of cardiac muscle

d)

the initiation of heartbeat

86.

The correct sequence of the three events in ECG

a)

P wave , T wave , QRS complex

b)

QRS complex , P wave , T wave

c)

T wave , QRS complex , P wave

d)

P wave, QRS complex, T wave

87.

P wave is

a)

Repolarization of atria

b)

Repolarization of ventricles

c)

Depolarization of atria

d)

Depolarization of ventricles

88.

T wave is

a)

Repolarization of atria

b)

Repolarization of ventricles

c)

Repolarization of ventricles and atria

d)

Depolarization of atria and ventricles

89.

QRS complex is

a)

Repolarization of atria

b)

Repolarization of ventricles

c)

Depolarization of atria

d)

Depolarization of ventricles

90.

Which one is represent P wave

a)

A

b)

B

c)

C

d)

E

91.

Which one is represent T wave

a)

A

b)

B

c)

C

d)

E

92.

Which one is represent QRS complex

a)

A

b)

B

c)

C

d)

E

93.

The ECG is the most commonly used clinical tool for diagnosing what?

a)

Cardiac dysfunction

b)

Cardiac Failure

c)

Congestive Heart Failure

d)

COPD

94.

What is the correct order of electrical activity during a cardiac cycle?

a)

AVN -> SAN -> Bundle of His -> Purkinje fibres

b)

SAN -> AVN -> Bundle of His -> Purkinje fibres

c)

AVN -> Purkinje fibres -> SAN -> Bundle of His

d)

SAN -> Bundle of His -> AVN -> Purkinje fibres

95.

The ____ acts as the heart's pacemaker.

a)

AVN

b)

Bundle of His

c)

cardiac myogenic tissue

d)

SAN

96.

The wave of electrical activity in the sinoatrial node causes the ventricles to contract.

a)

True

b)

False

97.

SAN activity immediately leads to... [select 2]

a)

the atrioventricular valves opening

b)

semilunar valve

c)

atrial systole

d)

atrial diastole

e)

ventricular systole

98.

Why doesn't the SAN send the entire heart contracting at the same time? [select 2]

a)

The Purkinje fibres prevent the contraction of ventricular walls

b)

Chambers that are not stretched are unable to contract

c)

Non-conducting tissue prevents immediate contraction of ventricles

d)

The AVN delays the impulse, allowing the ventricles to fill

99.

The correct pathway of the conduction system of the heart is

a)

SAN, Atrial diastole, AVN, Bundle of His, Purkinje fibres, Systolic diastole

b)

AVN, SAN, Purkinje fibres, Bundle of His

c)

AVN, Atrial systole, SAN, Bundle of His, Purkinje fibres, Systolic systole

d)

SAN, Atrial systole, AVN, Bundle of His, Purkinje fibres, ventricular systole

100.

Where is the SAN found?

(a)  

101.
Place the following in the correct order:
     1.atria contract
     2. AV node
     3. Bundle of His
     4.Purkinje fibers
     5. SA node
     6. ventricles contract
a)
5, 1, 2, 3, 4, 6
b)
2, 1, 5, 3, 4, 6
c)
5, 6, 2, 3, 4, 1
d)
2, 6, 5, 3, 4, 1
102.

About how much blood is in your body?

a)

5 litres

b)

10 litres

c)

2 litres

d)

20 litres

103.

The "lub dub" sound is the sound of...

(a)  

104.

Which valve is located between the right atrium and the right ventricle?

a)

Pulmonary valve

b)

Aortic valve

c)

Bicuspid valve

d)

Tricuspid valve

105.

What is structure 5?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Artery

d)

Pulmonary Vein

106.

What valve separates structure 3 and 4?

a)

Pulmonary Semilunar Valve

b)

Tricuspid Valve

c)

Aortic Semilunar Valve

d)

Bicuspid Valve

107.

Smooth muscle is NOT found in...

a)

arteries

b)

arterioles

c)

capillaries

d)

veins

108.

Where does an electrical impulse go after it leaves the Bundle of His?

a)

SA node

b)

aorta

c)

AV node

d)

Purkinje fibers

109.

What type of arrhythmia is this ?

a)

Normal

b)

tachycardia

c)

bradycardia

d)

atrial fibrillation

110.

The majority of CO2 transport is in the form of...

a)

hydrogen carbonate (bicarbonate)

b)

CO2 in solution

c)

carbaminohemoglobin

111.

What enzyme is required for CO2 to be combined with water to make carbonic acid?

a)

Carbonic anhydrase

b)

Carbonase

c)

Carbonic acid

112.

The ion found in the haem group is...

a)

Fe2+

b)

Mg2+

c)

CO2+

113.

Oxygen saturated protein in the blood in the form of...

a)

oxyhaemoglobin

b)

haemoglobin

c)

carbaminohaemoglobin

114.

What is the partial pressure of O2 at respiring tissues?

a)

High

b)

Low

115.

What is the partial pressure of CO2 in the lungs?

a)

High

b)

Low

116.

Which of the following is NOT the structure of haemoglobin?

a)

Each haemoglobin molecule contains 4 haem group

b)

Every each haem group in haemoglobin can bind with 4 molecule of oxygen

c)

Haemoglobin is a quaternary structure

d)

Each haemoglobin has 2 α-chain and 2 β-chain polypeptide subunits

117.

Oxyhaemoglobin gives up O2 when…

a)

CO2 concentrations are high

b)

pH values are high

c)

Body temperature is lowered

d)

O2 concentrations are higher

118.

The acidity due to the accumulation of H+ in erythrocytes is buffered by...

a)

Haemoglobin

b)

Carbon dioxide

c)

Plasma proteins

d)

Oxygen

119.

Carbonic anhydrase in the erythrocytes…

a)

Catalyzes the removal of oxygen from the erythrocytes

b)

Catalyzes the reaction of carbon dioxide with water to form carbonic acid

c)

Catalyzes the conversion of carbon dioxide into water

d)

Catalyzes the increase in blood pH

120.

Carbon dioxide and water combine to form...

a)

hydrogen carbonate ions

b)

carbonic acid

c)

hydrogen ions

d)

hydrogen bicarbonate

121.

When carbon dioxide binds directly with haemoglobin it forms...

a)

carbon diooxyhaemoglobin

b)

carboxyhaemoglobin

c)

carboglobin

d)

carbaminohaemoglobin

122.

To what process CO2 dissolved in the plasma?

a)

Active transport

b)

Osmosis

c)

Diffusion

d)

Protein Synthesis

123.

A high concentration of hydrogen ions in the RBC means...

a)

A low pH

b)

A high pH

c)

Close to neutral pH

124.

CO2 then diffuses out of capillaries into the alveoli of the lungs to be exhaled.

a)

arteries

b)

veins

c)

arteriole

d)

capillaries

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