Download Monitoring the Activity of the Human Body

Monitoring the Activity of the
Human Body
Unit G622
Learning Objectives
• Compare cellular respiration to the burning of
fuels. (D)
• Describe how the circulatory and respiratory
systems both play a part in the process of
respiration. (C)
• Outline why humans need to respire. (C/B)
Combustion
Write the word equation for combustion.
Respiration
• What is respiration?
• List the types of respiration and write the
word equation for each.
Task
• Compare cellular respiration to the burning of
fuels.
Hint: Try to use link words such as ‘whereas’ or
‘on the other hand’.
Task
Describe how the circulatory and respiratory
systems both play a part in the process of
respiration.
Hint:
Think about the sources of the reactants.
Where in the cell respiration happens?
Task
Outline why humans need to respire.
What is ATP, ADP and cyclic AMP?
How does the human body use these molecules?
Respiration is the process by which living things obtain energy for their activities.
(a)
State three different processes occurring within the human body which need a supply of
energy.
1. ............................................................................................................................................
2. .............................................................................................................................................
3. ..........................................................................................................................................[3]
(b)
Aerobic respiration and anaerobic respiration take place in the human body. They both make
energy available to body cells but the way they achieve this differs.
Write a sentence to describe these differences with respect to:
(i)
substrates used
............................................................................................................................................
....................................................................................................................................... [1]
(ii)
products formed
............................................................................................................................................
....................................................................................................................................... [1]
Learning Objectives
• Compare cellular respiration to the burning of
fuels. (D)
• Describe how the circulatory and respiratory
systems both play a part in the process of
respiration. (C)
• Outline why humans need to respire. (C/B)
Using Energy
Learning Objectives:
•
•
Compare cellular respiration to the burning of fuels. (D)
Outline why humans need to respire. (C)
• State the difference between aerobic and
anaerobic respiration in terms of substrate,
products and quantity of energy made
available to a respiring cell. (D)
• Relate cellular activity to what happens in a
muscle cell during various level of physical
activity. (C)
Differences between aerobic and
anaerobic respiration.
o What is meant by aerobic respiration?
o Write the word equation for the aerobic
respiration.
o What is meant by anaerobic respiration?
o Write the word equation for it.
Which type of respiration release more en
energy?
Differences between aerobic and
anaerobic respiration
Feature
Substrate
Products
Quantity of energy:
molecules of ATP per
molecules of glucose.
Aerobic
Anaerobic
Muscles in Action
Muscle cells will
respire aerobically
while the supply of
oxygen is
adequate.
Carbon dioxide is produced
and its concentration
increases in the muscles.
(which is removed by the
circulatory system)
However, the pH in
the muscle will be
relatively ________
. Muscle actively
generates heat
Intensive activity
Ventilation(breathing)
and circulatory (heart)
rates increase
Increase in acidity
and temperature
encourages release
of oxygen from
oxyhaemoglobin.
Demand of oxygen
exceed the rate at
which it can be
supplied to the
muscles.
Anaerobic
respiration
Lactic acid is formed
instead of carbon
dioxide. And the
concentration of this will
increase in line with the
activity
Task
ATP Credit – Oxygen Debt
Why your breathing rate continues to be faster
than usual for a time , after you finished
exercise?
Home work
Do task sheet.
Due next Wednesday.
The effect of exercise on cardio-respiratory
performance in fit and unfit individuals
Learning objectives:
• To identify hazards and carry out a risk
assessment. (D)
• Follow set procedures. (D/C)
• Record any observations and measurements.
(C)
• Process and evaluate results. (B)
The Heart
3.2.2: Structure and function of the
circulatory and respiratory systems
Learning Objectives
• Describe the structure of the heart, the
roles of the four chambers, the valves
in double circulation.
• Describe the characteristic features of
arteries, veins and capillaries