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About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium , sulfur , sodium , chlorine , and magnesium .
Humans obtain energy from three classes of fuel molecules: carbohydrates, lipids, and proteins. The potential chemical energy of these molecules is transformed into other forms, such as thermal...
20 Μαΐ 2015 · Nearly 99% of the mass of your human body consists of just 6 chemical elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Another 5 elements make up most of the last percentage point: potassium, sulfur, sodium, chlorine, and magnesium. Here’s a look at these elements in their pure form and their function in the human body.
16 Απρ 2009 · Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with a lot of that in the form of water.
All of the reactions whereby cells extract energy from food molecules are catalyzed by proteins serving as enzymes, for example, and an enzyme called ribulose bisphosphate carboxylase converts CO 2 to sugars in photosynthetic organisms, producing most of the organic matter needed for life on Earth. Other proteins are used to build structural ...
2 Δεκ 2019 · Six elements account for 99% of the mass of the human body. The acronym CHNOPS may be used to help remember the six key chemical elements that are used in biological molecules. C is carbon, H is hydrogen, N is nitrogen, O is oxygen, P is phosphorus, and S is sulfur.
4 Σεπ 2024 · Breaking bonds with carbon is an energy source. Hydrogen (H) - 9.5% - Hydrogen is found in water and all organic molecules. Nitrogen (N) - 3.2% - Nitrogen is found in proteins and nucleic acids that make up the genetic code. Calcium (Ca) - 1.5% - Calcium is the most abundant mineral in the body.
