Gaseous exchange quiz

Descripción

A quiz on the topic of gaseous exchange for A-level students although GCSE students may find parts useful.
Thomas Marshall
Test por Thomas Marshall, actualizado hace más de 1 año
Thomas Marshall
Creado por Thomas Marshall hace casi 9 años
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Resumen del Recurso

Pregunta 1

Pregunta
The Bohr effect shifts the curve of O2 to the [blank_start]left[blank_end].
Respuesta
  • left
  • right

Pregunta 2

Pregunta
The lungs ahve a large surface area to increase the rate of diffusion. Select anyother properties it has to do so
Respuesta
  • Many alveoli
  • Lots of cappileries suronding the alveoli
  • A large wall to help things diffuse across
  • A small wall to help things diffuse across
  • a low concentration gradient of O2 in the lungs
  • A high concentration gradient of O2 in the lungs
  • A low concentration of CO2 in the blood
  • A high concentration of CO2 in the blood

Pregunta 3

Pregunta
Foetal haemoglobin curves are shifted to the right.
Respuesta
  • True
  • False

Pregunta 4

Pregunta
The primary structure of Haemoglobin is the [blank_start]sequence of amino acids[blank_end]. The secondary structure is when it folds to [blank_start]form an alpha helix[blank_end]. The tertiary structure is when it folds even more. The quaternary structure is when there is [blank_start]more than one polypeptide chain[blank_end]. The iron is a [blank_start]prosthetic group[blank_end] to the protien.
Respuesta
  • sequence of amino acids
  • amino acids
  • form an alpha helix
  • form a beta bleated sheet
  • more than one polypeptide chain
  • prosthetic group
  • co-enzyme

Pregunta 5

Pregunta
How many polypeptide chains is haemoglobin made of
Respuesta
  • 1
  • 2
  • 3
  • 4
  • 5
  • 8

Pregunta 6

Pregunta
Label this diagram with the appropriate volumes. The Y axis is lung volume in litres and the X axis doesn't matter for this question.
Respuesta
  • Residual volme
  • Total lung capcity
  • Vital Capacity
  • Tidal volume
  • Inspiratory reserve volume
  • Expiratory reserve volme

Pregunta 7

Pregunta
During inspiration the [blank_start]external intercostal[blank_end] muscles, [blank_start]contract[blank_end] bringing the ribcage up and outwards. The diaphragm contracts moving [blank_start]down[blank_end]. This [blank_start]increases[blank_end] the thoraic cavity's volume and the lungs expand. This decreases the presure inside the lungs. The air therefore moves [blank_start]into[blank_end] the lungs.
Respuesta
  • external intercostal
  • internal intercostal
  • contract
  • relax
  • down
  • up
  • increases
  • Decreases
  • into
  • out

Pregunta 8

Pregunta
During inspiration the [blank_start]external[blank_end] intercostal muscles, [blank_start]contract[blank_end] bringing the ribcage [blank_start]up and outwards[blank_end]. The diaphragm [blank_start]contracts[blank_end] moving [blank_start]down[blank_end]. This [blank_start]increases[blank_end] the thoraic cavity's volume and the lungs [blank_start]expand[blank_end]. This [blank_start]decreases[blank_end] the presure inside the lungs. The air therefore moves [blank_start]into[blank_end] the lungs.
Respuesta
  • external
  • Internal
  • contract
  • relax
  • up and outwards
  • down and in
  • contracts
  • relaxes
  • down
  • up
  • decreases
  • expand
  • recede in size
  • increases
  • out
  • into
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