SSL (Secure Sockets Layer) is a standard security protocol for encrypting connections between a server and a client. This ensures all communications between the client and the server remain confidential. In most online implementations, the 'client' is an internet browser and the 'server' is a website to which the browser is connected.
Introductionâ¢ Oxygen and carbon dioxide diffuse between the alveoli and pulmonary capillaries in the lungs, andbetween the systemic capillaries and cells throughout the body.â¢ The diffusion of these gases, moving in opposite directions, is called gas exchange.Page 2.
The key exchange between the blood and body cells are the gases involved with cellular respiration. Carbon dioxide produced by respiration is absorbed by the blood, and oxygen â¦ being carried by hemoglobin in the blood is diffused into the cells. Both of these exchanges happen due to concentration gradients.he capillary is the only blood vessel where things can be  exchanged because it is so thin (one cell thick). Capillaries have  a single cell layer of squamous epithilium.