This card lists the characteristics of specialized exchange surfaces: large surface area, thin layers, good blood supply, and ventilation.
Tato karta uvádí charakteristiky specializovaných výměnných povrchů: velký povrch, tenké vrstvy, dobrá zásoba krve a ventilace.
| Front | Characteristics of specialized exchange surface 3.1.1(b) |
|---|---|
| Back | - Large SA (large area for exchange e.g root hair cells/villi) - Thin layers (short diffusion distances e.g alveoli/villi) - good blood supply (substances constantly delivered/removed from exchange surface, so steep conc gradient e.g alveoli/villi) - ventilation (maintains conc gradient for gases e.g alveoli/gills) |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Exchange gaseous system 3.1.1(c gasses lungs co2 removed
Previous card: Sa calc sa:v cube sphere 3.1.1(a side*6 vol
Up to card list: OCR A Biology