Exam-style Questions: Respiration
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What is the:
a) definition of respiration?
b) equation of respiration?
(Marks available: 2)
Answer outline and marking scheme for question: 1
a) The process of releasing energy from food.
(1 mark)
b) glucose + oxygen -> carbon dioxide + water + energy.
(1 mark)
(Total = 2 marks)
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Which 2 organs of the body use glucose as fuel?
(Marks available: 2)
Answer outline and marking scheme for question: 2
- The heart
- The brain
(Total = 2 marks)
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The intercostal muscles are very important in the process of breathing.
a) Where are they located?
b) What do they do?
(Marks available:2 )
Answer outline and marking scheme for question: 3
a) Small muscles between the ribs.
(1 mark)
b) They pull the ribcage up and outwards.
(1 mark)
(Total = 2 marks)
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When we breathe in air, it enters the lungs down the ___(i)___, which branches into the right and left ___(ii)___. Each ___(iii)___ then divides further into ___(iv)___. After about 20 branchings, you reach the ___(v)___.
(Marks available: 5)
Answer outline and marking scheme for question: 4
(i) trachea;
(ii) bronchi;
(iii) bronchus;
(iv) bronchioles;
(v) alveoli.
(Total = 5 marks)