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The main elements that comprise the human body (including water) can be summarized as CHNOPS. Element Symbol percent mass percent atoms Oxygen O 65.0 24.0 Carbon C 18.5 12.0 Hydrogen H 9.5 62.0 Nitrogen N 2.6 1.1 Calcium Ca 1.3 0.22 Phosphorus P 0.6 0.22 Sulfur S 0.3 0.038 Potassium K 0.2 0.03 Sodium Na 0.2 0.037 Chlorine Cl 0.2 0.024 Magnesium Mg
Homonuclear triatomic molecules contain three of the same kind of atom. That molecule will be an allotrope of that element. Ozone, O 3 is an example of a triatomic molecule with all atoms the same. Triatomic hydrogen, H 3, is unstable and breaks up spontaneously. H 3 +, the trihydrogen cation is stable by itself and is symmetric.
3-25 × 10 −7: Carotenoids: Antioxidant 2.4-23.1 × 10 −7: Cephalin: 3-11.5 × 10 −4: 0-1 × 10 −4: Ceruloplasmin: 1.5-6 × 10 −4: Chloride, as NaCl 4.5-5 × 10 −3: 3.5-3.8 × 10 −3: Cholecalciferol (Vitamin D3) 1, 25-dihydroxy 2.5-4.5 × 10 −11: 24,25-dihydroxy 1.5 × 10 −9: 25-hydroxy 1.4-8 × 10 −8: Cholecystokinin ...
T4 and T3 contain four and three atoms of iodine per molecule, respectively; iodine accounts for 65% of the molecular weight of T4 and 59% of T3. The thyroid gland actively absorbs iodine from the blood to produce and release these hormones into the blood, actions which are regulated by a second hormone, called thyroid-stimulating hormone (TSH ...
It is composed of thousands of covalently bonded atoms. Many macromolecules are polymers of smaller molecules called monomers. The most common macromolecules in biochemistry are biopolymers (nucleic acids, proteins, and carbohydrates) and large non-polymeric molecules such as lipids, nanogels and macrocycles. [1]
Amazon workers in more than 20 countries including the U.S. plan to strike and hold protests between Black Friday, November 29, and Cyber Monday, which falls on December 2, according to the ...
Nucleosides are molecules formed by attaching a nucleobase to a ribose or deoxyribose ring. Examples of these include cytidine (C), uridine (U), adenosine (A), guanosine (G), and thymidine (T). Nucleosides can be phosphorylated by specific kinases in the cell, producing nucleotides.
The Tennessee Titans have given up multiple touchdowns to opposing running backs in three consecutive weeks. Dobbins has scored a touchdown for the Chargers in three of his last four. That speaks ...
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