Question

myoglobin is an example of a tertiary structure. it consists of 154 amino acids. check out the 3d version of myoglobin that can be manipulated to get a better view: https://proteopedia.org/wiki/index.php/myoglobin there are no beta sheets in myoglobin. how many alpha helices are present in myoglobin? compare the 3d model to the picket fence model, what is the identity of the orange structure in the middle of the 3d model?

Explanation:

Step1: Recall myoglobin structure

Myoglobin has 8 alpha - helices.

Step2: Identify central structure

The central orange structure in myoglobin's 3D model is a heme group which contains an iron (Fe) ion at its center.

Answer:

1. 8
2. Heme group