HLTH 230 Lecture Notes - Lecture 5: Essential Amino Acid, Disulfide, Sickle-Cell Disease

• School: Queen's University
• Department: Health Studies
• Course: HLTH 230
• Professor: Jeffery Lalonde

Document Summary

Usually associated with strength and muscle: muscle cells need physical activity and many nutrients. Protein have structional and functional roles in cells: focusing on protein foods can cause a lack of other essential foods in the diet. Excess meat results in high saturated fat intakes. Protein can also be found in milk, eggs, legumes, and whole grains. Contain the same atoms as carbohydrates and fats: carbon, hydrogen, oxygen. Means containing nitrogen: amino acids are the links in the protein chain. Amino acids have the same basic structure: carbon centre. Side groups on each amino acid vary from one amino acid to another. Side groups make proteins more complicated than lipids are carbohydrates. Simplest amino acid is glycine: has hydrogen atom as a side group. Different in: size, shape, electrical charge. Made in the body with: nitrogen. Forms an amino group: fragments from carbs and fats. Proteins from foods supply these amino acids.