The sun! you can remember this by Helio=sun and centric=centre
Answer:
37oC - temperature
It is important that the temperature is controlled because it maintains consistency and safety.
Explanation:
-Temperature is a common type of controlled variable.
-A control variable is anything that is held constant or limited in a research study
Answer & explanation:
The primary structure of a protein can be defined as the main chain of the protein formed by the binding of amino acids and which shows the sequence in which they appear is called the primary structure of the protein.
The secondary structure usually results from the hydrogen bonds that occur between the hydrogen (H) of the amino group (-NH) of one amino acid and the oxygen (O) of the carbonyl (C = O) of another.
The most common secondary structures are alpha helices, which look like springs (found in the keratin in our hair) and the beta pleated sheets, like folded sheets of paper (an example is the fibroin found in a spider's web or the cocoon of a moth).
The tertiary structure is formed when the primary structures of proteins fold over themselves.
This structure is usually the result of sulfur bonds, known as disulfide bonds, but other bonds, such as those made by metal atoms, can occur.
An example of a tertiary structure protein is <u>myoglobin</u>, which acts as a reserve of oxygen in the muscles of mammals.
