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What is the chemical composition of the human body?
What elements make up the human body?
What are the components of the body?
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. All 11 are necessary for life.
Dec 2, 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.
- Anne Marie Helmenstine, Ph.D.
The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body,...
Jun 19, 2023 · The human body is approximately 99% comprised of just six elements: Oxygen, hydrogen, nitrogen, carbon, calcium, and phosphorus. Another five elements make up about 0.85% of the remaining...
- Reginald Davey
May 16, 2024 · What is the chemical composition of the human body? Chemically, the human body consists mainly of water and organic compounds—i.e., lipids, proteins, carbohydrates, and nucleic acids. The human body is about 60 percent water by weight.
- The Editors of Encyclopaedia Britannica
- What are the four main types of tissue in the human body?The four main types of tissue in the human body are epithelial, muscle, nerve, and connective.
- What are the nine major organ systems in the human body?The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory sy...
Jun 28, 2018 · Here's a look at the chemical composition of the human body, including element abundance and how each element is used. Elements are listed in order of decreasing abundance, with the most common element (by mass) listed first. Approximately 96% of body weight consists of only four elements: oxygen, carbon, hydrogen, and nitrogen.
The human body depends upon four major elements for form and function: Hydrogen (H), Oxygen (O), Carbon (C), and Nitrogen (N). Bonding. Atoms form molecules when two or more are bonded together. A1—bond—A2 = Molecule: A1A2. Covalent bonds are formed when electrons in the outer orbit are shared between two atoms.
