Rosalind Franklin was the one who pioneered the structure of DNA through his X-ray diffraction images at King's College. His failure to explain the double helix structure was the reason why Watson and Crick were the person who were accounted by the discovery. The huge model by Cirick and Watson proved the theory of Franklin who failed to give an evidence.
The following statements describes examples of facilitated diffusion:
1. It requires concentration gradient.
2. It requires the assistance of protein carriers.
Facilitated diffusion refers to the movement of molecules into the cell with the help of carrier proteins. It is a passive form of movement.<span />
At high altitude, atmosphrric pressure is very high;
the partial pressures of ocygen are considerably lower,
the inhabitants must have a higher concentration of haemoglobin to increase surface area for carrying more oxygen
