â¢ BETEL NUT (noun). The noun BETEL NUT has 1 sense: 1. seed of betel palm; chewed with leaves of the betel pepper and lime as a digestive stimulant and narcotic in southeastern Asia. Familiarity information: BETEL NUT used as a noun is very rare.eed of betel palm; chewed with leaves of the betel pepper and lime as a digestive stimulant and narcotic in southeastern Asia.
Proteins (/ËproÊËtiËnz/ or /ËproÊti.áµ»nz/) are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, and transporting molecules from one location to another.
Used in synthesis of enzymes, antibodies, hemoglobin, muscle, etc... Complete or incomplete depending if the source has all amino acids needed byb the body. Complete protein sources: eggs, milk meat (fish, poultry, pork, beef, lamb) Incomplete protein sources: legumes, nuts and seeds, grains and cereals. RDA - 0.8g/kg of body weight = 10-15% of total caloric intake.