Name four substances an organism needs to exchange with its environment.
Responda
Carbon Dioxide
Oxygen
Glucose
Urea
Nitrogen
Questão 2
Questão
Select two features of alveoli that makes them suitable for efficient gaseous exchange.
Responda
Large Surface Area
Good Blood Supply
Small Surface Area
Thick Cells
Questão 3
Questão
The trachea contains ciliated epithelium.
Responda
True
False
Questão 4
Questão
The goblet cells secrete haemoglobin to trap microorganisms.
Responda
True
False
Questão 5
Questão
Cilia on the surface of cells waft the mucus to move it to the top of the airway to be swallowed.
Responda
True
False
Questão 6
Questão
Elastic fibres allow the airway diameter to be controlled.
Responda
True
False
Questão 7
Questão
Which of these DO the alveoli contain.
Responda
Smooth Muscle
Goblet Cells
Elastic Fibres
Cilia
Questão 8
Questão
The cartilage provides support.
Responda
True
False
Questão 9
Questão
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.
Responda
True
False
Questão 10
Questão
Expiration is an active process - it requires energy.
Responda
True
False
Questão 11
Questão
Tidal volume is the volume of air in each breath.
Responda
True
False
Questão 12
Questão
Vital capacity is the maximum amount of air that can be breathed in or out.
Responda
True
False
Questão 13
Questão
Breathing rate is how many breaths are taken - usually in a minute.
Responda
True
False
Questão 14
Questão
Oxygen intake is the rate at which a person uses up oxygen e.g. number of dm3 used per minute.
Responda
True
False
Questão 15
Questão
Soda lime in a spirometer absorbs the oxygen.
Responda
True
False
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