In a chemical analysis of an animal tissue sample,which element would be in the least quantity?
A)carbon
B)hydrogen
C)nitrogen
D)oxygen
E)iodine

Question

Quizplus · Accepted Answer

Iodine is not a common element found in animal tissues and is only needed in trace amounts for the synthesis of thyroid hormones. Carbon, hydrogen, nitrogen, and oxygen are all major elements found in living organisms and make up a significant portion of biomolecules such as carbohydrates, lipids, proteins, and nucleic acids. Therefore, iodine would be present in the least quantity in a chemical analysis of an animal tissue sample.

In a Chemical Analysis of an Animal Tissue Sample,which Element