Protein Composition
What 4 elements are proteins composed of?
Carbon, Hydrogen, Oxygen, & Nitrogen
What is the main function of protein in the body?
Build & Repair tissues
What are examples of complete proteins?
Meats - Animals
What 4 factors determine the amount of protein you need?
Age, body size, activity level, & health status
What does RDA stand for?
Recommended Dietary Allowance
What are 4 factors or substances that can denature proteins?
Heat, acids, salt, mixing
What are 3 important compounds the body makes from protein?
Enzymes, hormones, antibodies
What are examples of incomplete proteins?
What population group is often affected by kwashiorkor?
Young children, especially in areas with severe protein deficiency
What is the RDA for males & females 14-18 years old (grams)
Males 52 grams
Females 46 grams
How many amino acids are needed for good health?
20
What are 3 vital substances carried by proteins in the bloodstream?
Oxygen, nutrients, & hormones
What are 3 reasons people choose plant-based protein sources?
Health benefits, lower saturated fat intake, & environmental concerns
What factors affect an athlete's protein needs during excercise?
Excercise intensity, duration, body size, & training level
What is one nutritional challenge vegetarians face regarding protein?
Vegetarians must combine plant proteins to obtain all essential aminio acids
How many amino acids are essential and how many are non-essential?
9 Essential
11 Nonessential
Proteins are used for building & repairing tissues and maintaining their bodily functions
What protein food would compliment whole-grain bread for a vegetarian meal?
Beans or peanut butter
Why are proteins not the body's preferred source of energy?
Proteins are mianly used for body functions, while cars & fats are the preferred energy sources
What is an example of a vegetarian meal that provides complete protein?
Beans and rice, etc
What are the building blocks of protein?
Amino Acids
Why is nitrogen balance used to evaluate protein status?
Because proteins contain nitrogen, which allows scientists to meausre whether the body is gaining or losing protien
What are 4 factors that influence protein food choices?
Food preferences, cost, availibility, & nutritional value
What groups may require increased protein intake?
Pregnant women & breastfeeding mothers
What age group needs protein to support growth & development?
Children & teens