Ch 6 how do different types of molecules pass through membranes concept map mastering biology

The transport across the plasma membrane might be:

1. Passive transport-no energy required

•Diffusion-the movement of molecule from higher to lower concentration

•Osmosis-the movement of water across the semipermeabile membrane

•Facilited diffusion-transport with the help of carrier proteins

2. Active transport-requires energy, usually ATP-from a region with lower molecule concentration to the region with higher concentration.

we need additional information in order to determine the cause of death for anna garcia. there are at least 3 things with explanation included as to why we need them are as follows: