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