BRAINCAKELugworm
Haemoglobin from the marine invertebrate Arenicola marina (lugworm) is a large protein complex that can carry up to 156 oxygen molecules.
Lugworms live on the sea shore. They are not very active and spend most of their time in their burrows covered by sea water.
The primary function of lugworm haemoglobin is oxygen transport at high tide.
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Key terms in this lesson
- haemoglobin
- A globular, quaternary protein in red blood cells, made of four polypeptide chains each with a haem group, that binds and transports oxygen.
- positive cooperativity
- The change in shape of haemoglobin caused by the binding of one oxygen molecule that makes it easier for further oxygen molecules to bind.
More in Mass Transport in Animals
- Different Types of Haemoglobin
- Oxygen Dissociation Curve
- Effect of Carbon Dioxide
- Transport of Oxygen
- Llama
- Fetal Haemoglobin
- Myoglobin
- The Need for a Transport System
All 27 lessons in Mass Transport in Animals · All AQA AS-level Biology topics