Transcript The Body In Action - Hillpark Secondary School

The Body In Action
(B) The Need For Energy
W. McConnell 2004 Kinross High School
1.
Bicarbonate indicator is used to show the
presence of carbon dioxide.
• What colour is the Bicarbonate indicator
at the start of the experiment ?
red
• What colour is the Bicarbonate indicator
at when carbon dioxide is present?
yellow
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2.
Below is a table comparing the composition of
exhaled and inhaled air. Complete the table!
Gas
Oxygen
Carbon Dioxide
Nitrogen
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% Inhaled air
% Exhaled air
20
16
0.04
4
79
79
3.
The Carbon Dioxide in our exhaled air is
produced by the chemical reaction called
respiration.
Oxygen + ……………..
glucose
……………. + CO2 +
energy
………..
water
Complete the respiration equation above.
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4.
Why is cartilage needed in the windpipe?
To prevent it collapsing when air is breathed out.
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5.
Name the 2 sets of breathing muscles
•Intercostals
• Diaphragm
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6.
Complete the statements below.
• The air sacs have many ………….
…………….
blood capillaries
surrounding them.
• The air sacs are filled with mucus so that gases
can ……………….
dissolve.
• Oxygen diffuses into the blood because the
oxygen concentration in the air sacs is ……….
higher.
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7.
Name the 2 ways in which air can be
cleaned before entering the lungs.
• Hairs in the nose filter the dust
•Mucus lining the windpipe traps dust
and germs.
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8.
What is the function of the cilia?
They waft the germ-laden mucus up to the back
of the throat where it is swallowed into the
acid of the stomach to kill the germs.
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9.
Which side of the heart carries deoxygenated blood?
The right side of the heart.
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10. How many times does the blood pass
through the heart when it makes one
complete circuit of the body?
Twice
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11. • What name is given to the heart muscle?
Cardiac muscle
• What name is given to the circulation
from the heart to the lungs?
Pulmonary circulation
•What name is given to the circulation
which supplies food and oxygen to the
heart muscles? Coronary circulation
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12. What is the function of the
bicuspid valve in the heart?
It prevents the blood from the left
ventricle flowing back into the left atrium.
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13.
Which type of blood vessel ….
Carries oxygenated blood away from the
heart? Artery
Carries de-oxygenated blood back to the
heart? Vein
Supplies oxygen to the cells and collects
carbon dioxide from the cells? Capillary
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14.
Using the words artery, vein, capillary,
give the correct order in which the blood
flows through the blood vessels.
From heart
artery
………..
………..
capillary
vein
………..
To heart
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15.
Where are red blood cells made?
In the bone marrow of long bones
What is the function of red blood cells?
To carry oxygen in the haemoglobin
Where are red blood cells broken down?
In the liver and spleen
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16.
Give the 2 main functions of white
blood cells.
• Producing antibodies
• Engulfing bacteria
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17.
What is the function of the
platelets in the blood?
They clot the blood.
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18.
Who discovered the circulation of
the blood?
William Harvey
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19.
Name the substance in red blood
cells which combines with oxygen
Haemoglobin
What does this substance become
when combined with oxygen?
Oxyhaemoglobin
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20.
The plasma carries lots of substances in
solution. Complete the following table.
Substance
Carbon
Carried from
Carried to
Dioxide
all cells
liver
lungs
Urea
liver
kidneys
Water
all cells
lungs,
kidneys,
kidneys
lungs
Products of
small
intestine
kidneys
liver
digestion
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21. When gas exchange takes place
in the lungs, which gas enters
the air sacs?
Carbon Dioxide
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22. When gas exchange takes place in the
tissues, which gas enters the body cells?
oxygen
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