**Physiology
6. What features are necessary for the cell to engage infacilitated diffusion rather than simple diffusion? Secondaryactive transport rather than primary active transport (is thisdifferent for symport and antiport? What advantages do we derive byputting these modifications in place?
2. Make a concept map of the cell membrane. Include each of thefunctions of the cell membrane listed below. Make sure eachfunction is correctly linked to the components of the cell membraneresponsible for each function
- separates intracellular fluid (ICF) from extracellular fluid(ECF)
- provides permeability barrier
- contains surface proteins acting as antigens - important forrecognition of “self”
- provides cell communication: receptors and signal transductionpathways for hormones and neurotransmitters
- contains a variety of adhesion molecules allows anchoring,tissue organization
- acts as a highly selective filter
7. In mythology, the cosmic man appears grossly swollen and maybe seen pictures as a human rain cloud. Propose a mechanism wherebythis mythological creature could swell up and fill with water. (Itis not going to be true, so you can’t look this up – it’s just forfun to see if you understand how it could work.)
