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LoginBiology Secondary School in Biology 8 months ago
Answer:
The respiratory system test questions
1) Which two structures does the trachea lead to in the lungs?
a) The bronchi
b) The bronchioles
c) The pleural membranes
2) What are the tiny air sacs in the lungs called?
a) Bronchioles
b) Alveoli
c) Capillaries
3)When we inhale (breathe in), what happens to the PRESSURE in the THORAX?
a) It increases
b) It stays the same
c) It decreases
4) What happens when we exhale (breathe out)?
a) The diaphragm contracts and moves upwards
b) The diaphragm relaxes and moves upwards
c) The diaphragm relaxes and moves downwards
5 Which statement about atmospheric and exhaled air is correct?
a) Exhaled air contains more nitrogen than atmospheric air does
b) Exhaled air contains more oxygen than atmospheric air does
c) Exhaled air contains less carbon dioxide than atmospheric air does
6) What happens during gas exchange in the lungs?
a) Oxygen passes into the BLOOD and carbon dioxide passes out of the blood
b) Oxygen passes out of the blood and carbon dioxide passes into the blood
c) Oxygen and carbon dioxide pass into the blood
7) What happens when we inhale (breathe in)?
a) The external intercostal muscles contract and the ribcage is pulled upwards and inwards
b) The external intercostal muscles contract and the ribcage is pulled upwards and outwards
c) The internal intercostal muscles contract and the ribcage is pulled upwards and outwards
8) Which of these is an adaptation for efficient gas exchange in the air sacs (alveoli)?
a) Thick walls
b) Few blood capillaries
c) Moist surface
9) During exercise, what happens to breathing in humans?
a) The depth of breathing increases and the breathing rate increases
b) The breathing rate increases but not the depth of breathing
c) The depth of breathing increases but not the breathing rate
10) Tobacco smoke contains carbon MONOXIDE. What problem does this cause?
a) The carbon monoxide irritates the airways, causing bronchitis
b) The carbon monoxide combines with haemoglobin in the red cells, reducing the ability of the blood to carry oxygen
c) The carbon monoxide causes lung cancer
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Posted on 16 Dec 2024, this text provides information on Biology related to Secondary School in Biology. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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