Organisms, Molecules, ect.

Question Description

Use your answers from the questions below to help you create your final product.

  1. What are the 6 most common elements that make up living organisms?
  2. What percentage of living organisms are made up of each element?

Use your answers from the questions below to help you create your final product.

  1. What are the 4 most common complex molecules that make up living organisms?
  2. Why do we need these macromolecules? (what are each of their functions?)
  3. How do we get them?

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Final Answer

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1) carbon, nitrogen,hydrogen,oxygen,phosphorous and sulfur.

2) oxygen=61%

carbon= 23%


nitrogen= 3%

phosphorous = 1%

sulfur +other elements= 2%


* proteins



* Nucleic acid



Proteins are probably the most versatile of all the organic molecules, making up many structures and executing various functions within organisms. Building blocks called amino acids make up proteins.


they are the instant source of energy for living organisms. All the living organisms require carbohydrates for their body functions to be performed. they store carbohydrates in the form of starch (plants) and glycogen(animals).


Lipids, perhaps better known as fats, come in different forms in your body and contain the most energy of all the organic compounds. When your body burns lipids for fuel, you get more energy than if you burned the other organic molecules. In your body, fats perform many functions, taking the form of phospholipids and cholesterol, both important components of cell membranes; waxes that provide plants and animals with a protective layer; hormones that signal different functions in your body; vitamins that aid in different cell functions; and steroids, which are important in a number of physiological processes. Fats from animals tend to be more viscous than fats from plants.

Nucleic Acids

The nucleic acids are DNA and RNA, or deoxyribonucleic acid and ribonucleic acid, respectively. They make the proteins that are present in almost every structure and perform almost every function in your body.

3) we can get these macromolecules through diet except the nucleic acid because they are also hereditary material and transfers from generation to generation  through reproduction.

Please let me know if you need any clarification. I'm always happy to answer your questions.

Ahsan N. (560)
Duke University

Very useful material for studying!