Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure
This is all I know about this, let me know if you still have questions ;)
Answer: The options are not given. The options are;
A. 1 B. 3 C. 4 D. 6
The answer is 4 which is option C.
Explanation:
Protein recommendations is the amount of daily required dietary proteins for a person base in its weight.
Christie's Doctor recommend 40grams of dietary protein and she has already consumed 50% of it. This meant that she has consumed about 20 grams of the required dietary protein and she needed additional protein source to complete her daily requirements. Therefore, Christie needs additional four servings of snacks to meet her daily protein recommendations.
The answer is D. It <span>keeps outside substances away from the receptor cells</span>