Chemical Composition of Living Organisms

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Which elements are the most common in the human body?

Carbon, Hydrogen, Oxygen & Nitrogen

What distinguishes organic compounds from inorganic compounds?

Organic compounds contain Carbon; inorganic compounds do not

Which element is NOT listed as one of the most common elements in the human body?


What type of compounds build up the living body?

Biological molecules

What percentage of the human body is composed of Carbon according to diagram 1.1?


How are biological molecules classified?

Carbohydrates, Proteins, Lipids, Nucleic acids

Explore the composition of living organisms with a focus on the essential elements present in their bodies. Learn about the bonding of naturally existing elements in different ways to form chemical compounds crucial for life.

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