Transport 1- circulation Flashcards
what is transported in the circulation system
- Nutrients
- Hormones
- Water
- Respiratory gasses
- Cells
what is circulation
the movement of fluids (liquids and gases) in the body.
what is a gastrovascular system
a continuous circulation system that is in a straight line through the organism
what are the two ways that coelomic fluid is moved
the cilia that line the coelom and contractions of the body wall muscles.
what are the two ways that coelomic fluid is moved
the cilia that line the coelom and contractions of the body wall muscles.
what is characteristic of a open system
fluid baths the tissue directly
what is characteristic of a closed circulatory system
blood separated from tissue
what is haemolymph
tissue and fluid
what is the big advantage of a closed system
allows the organism to grow bigger and have higher metabolic activity relative to their size
what is the open system equivelent of haemoglobin
haemocyanin
what is haemoglobin made of
2 alpha units 2 beta units and Fe (haem)
