Surface area to volume ratio ( Mass Transport In Animals, Gas Exchange, Mass Transport In Plants Flashcards
1
Q
The oxygen dissociation curve for haemoglobin shifts to the right during vigorous exercise.
Explain the advantage of this shift.
A
- Lower affinity for oxygen
- So oxygen is released quicker to muscles
- For rapid respiration
2
Q
Explain how the body shape of a Weddell seal is an adaptation to living in a cold environment.
A
- Small surface are to volume ratio
- So reduces heat loss
3
Q
Describe and explain the changes in the rate of blood flow to the different organs during a long dive.
A
- Brain has the same rate of blood flow, others falls
- Brain controls other organs so needs constant supply of oxygen
- Lungs aren’t used
