Respiration

Beschreibung

GCSE Science (Biology) Quiz am Respiration, erstellt von mollymalone98 am 22/12/2013.
mollymalone98
Quiz von mollymalone98, aktualisiert more than 1 year ago
mollymalone98
Erstellt von mollymalone98 vor fast 11 Jahre
44
2

Zusammenfassung der Ressource

Frage 1

Frage
Respiration releases energy...
Antworten
  • because it's fun
  • to build up larger molecules (proteins) from smaller molecules (amino acids)
  • to allow muscles to contract in animals
  • so animals can maintain a constant body temperature
  • so plants can build sugars, nitrates and other nutrients into amino acids where they are then built into proteins
  • so we can breathe

Frage 2

Frage
When doing physical activity, your breathing rate increases and you breathe more deeply for maximum oxygen intake to be supplied to your muscles
Antworten
  • True
  • False

Frage 3

Frage
Your heart pumps faster during excercise so more blood and thus oxygen can be pumped to your muscles
Antworten
  • True
  • False

Frage 4

Frage
Glycogen..
Antworten
  • some glucose is stored from food as glycogen
  • glucose breaks down into glycogen
  • glycogen is mainly stored in the liver
  • muscles have their own store
  • muscles use glucose vigorously during exercise so some of the glucose stored as glycogen is reconverted back into glucose for respiration
  • glycogen combines with oxygen in respiration

Frage 5

Frage
Anaerobic respiration happens only when your asleep
Antworten
  • True
  • False

Frage 6

Frage
Anaerobic respiration is the incomplete breakdown of glucose due to insufficient oxygen supply to your muscles, with the equation..
Antworten
  • glucose -> lactic acid (+ a little energy)
  • glucose -> oxygen + lactic acid (+ a little energy)
  • glucose -> carbon dioxide + lactic acid (+ a little energy)
  • glucose -> lactic acid (+ a lot of energy)

Frage 7

Frage
"Oxygen debt" is when...
Antworten
  • you have to "repay" the oxygen that you didn't get to your muscles during exercise because your lungs couldn't keep up with the demand
  • you don't have any oxygen in your bloodstream
  • when you're suffocating
  • when you have such little oxygen in your muscles that they cannot work any longer

Frage 8

Frage
lactic acid is removed by..
Antworten
  • oxidising it to harmless CO2 and water
  • passing it out through the blood stream
  • breathing it out
  • waiting until your heartrate is normal

Frage 9

Frage
While high levels of CO2 and lactic acid are detected in the blood, your breathing and heart rate stay high to rectify the situation
Antworten
  • True
  • False

Frage 10

Frage
mitochondria help make proteins by
Antworten
  • provided the energy required for protein synthesis
  • where protein synthesis takes place
Zusammenfassung anzeigen Zusammenfassung ausblenden

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