3 Phosphate groups. Definition of triphosphate: a salt or acid that contains three phosphate groups.
UV light could change the DNA of the skin cells of the organism, possibly causing cancer cells to form.
Earth is the only known planet to have bodies of liquid water on its surface. Europa is thought to have subsurface liquid water. ... Evidence points to water on other planets in our solar system. In 2015, NASA confirmed that liquid water flows intermittently on present-day Mars..
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Specialized molecules called hemoglobin bind to oxygen and deliver it to the body cells via red blood cells (RBCs).
Erythrocytes or Red blood cells contain hemoglobin a protein that contains iron and transports oxygen throughout the body.
Red blood cells are small in size (7-8 μm in diameter) and have a biconcave structure. Mature RBCs lack a nucleus to make space for hemoglobin protein.
A single erythrocyte contains about 250 million cells of hemoglobin and a single hemoglobin protein can bind up to four molecules of oxygen which means that a single erythrocyte can carry up to a billion oxygen molecules.
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