4. What issues do larger organisms face? Flashcards
Factors affecting rate of diffusion
Faster rate:
1. Increasing surface area
2. Decreasing the thickness of the diffusion surface
3. Maintaining a concentration gradient
Large sized body advantage in cold climates
Larger animals are better at retaining heat because it takes longer for heat to travel from their core to their extremities.
An animal with a small surface area to volume ratio is well adapted to cold environments as it will loose heat slowly
Osmosis
Osmosis is a type of passive transport that moves water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration
Endosmosis and exosmosis
Endosmosis is when water molecules enter a cell, and exosmosis is when they exit