General Science Questions

Haemoglobin is a protein what carries oxygen in the blood and contains iron metal in it.

The outer protein protective coat of a virus is called a Capsid.

In 2006, pluto devoted to a draft planet.

Storage containers for recyclables must be designed to prevent the entry of rodents.

The head mirror used by ENT doctors is concave.

To reduce the risk of bacterial contamination, many foods must be stored in the refrigerator and thus kept below 5 degrees Celsius. These foods are often classified as ‘high-risk foods’ and include – meat, poultry, dairy, seafood, eggs, smallgoods and cooked rice and pasta. This also refers to ready-to-eat foods that have high-risk foods as ingredients and include – casseroles, quiche, pasta salad, pizza, sandwiches and many cakes.

By keeping these high-risk foods under 5 degrees Celsius it stops them from entering the ‘danger-zone’ – temperatures between 5 degrees Celsius and 60 degrees Celsius. The danger-zone is the temperature zone which provides bacteria with the perfect environment to rapidly grow and multiply to numbers that cause food poisoning.