Proteins part 2
Roles of Proteins
1. Building blocks for most body structures (collagen-tendons, ligaments,
2.Replacement of dead/damaged cells
3. Enzymes (made of proteins) (Catalysts facilitate chemical reactions but
themselves are uncha
Fat Soluble Vitamins
-Function: antioxidant, helps in vision to see color & in dim light, growth,
sexual maturation. Helps prevent damage to skin from sun, keeps mucus
-Deficiency: Night blindness
-Def. Symptoms: Keratinizatio
Minerals and Water
-Functions: Nerve impulses, muscle contraction. Major +ion in extracellular
-Def. Name: Hyponatremia
-Def. Symptoms: Malaise, seizures, death
-Toxicity: High BP, edema
-Food Sources: Processed foods, restaurant foods, soy s
Proteins part 1
Amino Acids (AA)
Carbon, hydrogen, amino group (N), acid group, side group or side chain.
More complex than carbs or fats. 20 with different characteristics.
9-Body can't make them, need to eat.
AA that can be
Water Soluble Vitamins
-Functions: Antioxidant, helps in iron absorption, forms collagen.
-Deficiency Name: Scurvy, RDA higher in smokers
-Deficiency Symptoms: bleeding under skin and gums
-Toxicity: kidney stones
-Sources: citrus fruits, strawb
Chapter 1 Nutrition
the science of food; the nutrients and substances' interactions and balance in relation to health and disease;
process of ingestion, digestion, absorption, transportation, and excretion of food substances.
Carbohydrates part 2
Muscular Action of Digestion
Stomach action: circular, longitudinal & diagonal muscles
Peristalsis: circular & longitudinal muscles working together
The Final Stage of Digestion
Undigested residues exercise intestinal muscles and reta
Location of the double bond nearest the methyl end of the carbon chain.
Alpha Linolenic Acid
Omega-3, essential F.A. (body can't make it), decreases blood pressure, antiinflammatory, less sticky blood cells, cardiac arrhythmias.
Carbohydrates part 1
Factors that influence food choices
Personal preference, taste, habit, genetics, ethnic heritage, tradition, religion,
social interactions, availability, convenience, economy, emotions
Being aware of what and how you ea
Heat, mechanical, electrical, chemical
Plants create energy from CO2, sun, & H2O
Animals break down food to E (heat), H2O, & CO2
Most metabolically active cell
Building up, req