Question

Can anyone help me with this biology question?

Living systems are made of complex molecules including carbohydrates, fats, proteins, and nucleic acids. Even though there are more than 100 elements known to exist, these molecules are comprised of only a few elements. What are these elements? *


a. sodium, potassium, calcium, nitrogen, phosphorus, sulfur


b. carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus


c. carbon, hydrogen, oxygen, fluorine, chlorine, iodine


d. fluorine, chlorine, iodine, nitrogen, phosphorus, sulfur

Answer 1

The correct answer is option B

All the living components are composed of carbohydrates, fat, protein and nucleic acid.

Carbohydrates is composed of carbon, hydrogen and oxygen.

Fats are composed of carbon, hydrogen, oxygen, nitrogen, and phosphorus. some fat molecules also contain sulfur, such as sulfolipids.

Proteins are composed of carbon, hydrogen, oxygen, nitrogen, sulfur.

Nucleic acid composed of carbon, hydrogen, oxygen, nitrogen, and phosphorus