Examlex
A ________ consists of a nitrogen-containing a base and a sugar.
Carbohydrates
Organic compounds made up of carbon, hydrogen, and oxygen, serving as a major energy source and structural component of living organisms.
Hemoglobin
An iron-containing protein in red blood cells that is essential for the transport of oxygen from the lungs to the tissues of the body.
Proteins
Large molecules composed of amino acids, essential for structure, function, and regulation of the body's tissues and organs.
Basal Metabolic Rate
The pace at which the body expends energy during rest to support critical activities such as respiration and temperature regulation.
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