Name four substances an organism needs to exchange with its environment.
Answer
Carbon Dioxide
Oxygen
Glucose
Urea
Nitrogen
Question 2
Question
Select two features of alveoli that makes them suitable for efficient gaseous exchange.
Answer
Large Surface Area
Good Blood Supply
Small Surface Area
Thick Cells
Question 3
Question
The trachea contains ciliated epithelium.
Answer
True
False
Question 4
Question
The goblet cells secrete haemoglobin to trap microorganisms.
Answer
True
False
Question 5
Question
Cilia on the surface of cells waft the mucus to move it to the top of the airway to be swallowed.
Answer
True
False
Question 6
Question
Elastic fibres allow the airway diameter to be controlled.
Answer
True
False
Question 7
Question
Which of these DO the alveoli contain.
Answer
Smooth Muscle
Goblet Cells
Elastic Fibres
Cilia
Question 8
Question
The cartilage provides support.
Answer
True
False
Question 9
Question
During inspiration, the intercostal muscles contract, causing the ribcage to move upwards and outwards and the diaphragm to flatten, increasing the volume of the thorax and decreasing lung pressure.
Answer
True
False
Question 10
Question
Expiration is an active process - it requires energy.
Answer
True
False
Question 11
Question
Tidal volume is the volume of air in each breath.
Answer
True
False
Question 12
Question
Vital capacity is the maximum amount of air that can be breathed in or out.
Answer
True
False
Question 13
Question
Breathing rate is how many breaths are taken - usually in a minute.
Answer
True
False
Question 14
Question
Oxygen intake is the rate at which a person uses up oxygen e.g. number of dm3 used per minute.