Explain why cell contents and their environment are likely to freeze under extremely cold temperatures

Explanation:

A fall in temperature can also adversely affect cell and cell membranes. At low temperatures, the phospholipids' fatty acid tails are moving less and stiffer. This reduces the membrane's overall fluidity as well as reduces its permeability and perhaps limits the entry into the cells of vital chemicals like oxygen and glucose. Also, low temperatures can impede cell development by preventing cell size expansion.

In severe cases, such long term exposure to sub-freezing temperatures, fluid in the cell can start solidifying and can form crystals that breach the membrane and destroy the cell.

The public health service organization responsible for monitoring institutional compliance with public health service policy is the office of laboratory animal welfare or as called as OLAW, formerly OPRR.  The office of laboratory animal welfare supervises the care and use of research animals in public health service funded research. The public health service contains of the national institutes of health, centers for disease control and prevention, the food and drug, the food and drug administration, the agency for healthcare research and quality, the Indian health service and the substance abuse and mental health services administration. The agencies of the public health service are part of the united states department of health and human services.