Review Exam 1 - NTR 311 Review handout Exam 1 Chapter 1 *...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
NTR 311 Review handout Exam 1 Chapter 1 * Name the 6 classes of nutrients. Classes of Nutrients *carbs- provide us with energy (grains, startch, milk, fruit and veggies, lots of foods) *Proteins- in muscle meats like beef poultry and fish and some in grains, used to help make muscle * fat- storage form for energy in our bodies, come from oils and animal fats, and nuts and seeds * vitamins- needed for chemical reactions in the body (vitmin A and C) * minerals- sodium, potassium,-needed for bone growth, used in nerves, *water- the medium for all of these chemical reactions in the body (***most of ur foods are made of water!!!!) (2/3 of our bodies are made of water * Organic molecules contain carbon and are large complex molecules. Name examples: Carbohydrates, lipids, vitamins, proteins * Inorganic molecules contain no carbon and are simple molecules. Name examples: Minerals and water * All nutrients are essential and must be obtained through the _____. DIET! (comes from food) * Do vitamins and minerals energy yield energy? No, only cabohydrates, fats, and proteins can break down to give energy * Define kilocalories: Energry is measured in kilocalories *definition of kilocalorie (carbs proteins and fats used for energy) -1000 calories Energy (heat) required to raise 1 kilogram of water (about same as quart) one degree centigrade * Know the kilocalorie yields for 1 gram of: Fat 9 kcal/gram Carbohydrate 4 kcal/gram Protein 4 kcal/gram Alcohol 7 kcal/ gram- alcohol is not considered a nutrient because it interferes with the growth, maintenance, and repair of the body * Know how to perform percentage calculations: e.g. A cup of 2% milk contains 120 calories, 12 g CHO, 8 g protein, 5 g fat. What is the % kcal from fat in 2% milk? 5*9=54 54/120= 45%
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
NTR 311 Review handout Exam 1 * Know how to convert kilocalories to grams and visa versa e.g. A meal consists of 40 grams of carbohydrates, 20 grams of protein and 15 grams of fat, How many kilocalories are in the meal? 40*4=160 kcal 20*4= 80 kcal 15*9= 135 kcal 375 kcal IN SUMMARY Foods provide nutrients—substances that support the growth, maintenance, and repair of the body’s tissues. The six classes of nutrients include: • Carbohydrates. • Lipids (fats). • Proteins. • Vitamins. • Minerals. • Water. Foods rich in the energy-yielding nutrients (carbohydrates, fats, and proteins) provide the major materials for building the body’s tissues and yield energy for the body’s use or storage. Energy is measured in kcalories. Vitamins, minerals, and water facilitate a variety of activities in the body. Without exaggeration, nutrients provide the physical and metabolic basis for nearly all that we are and all that we do. * Define the 4 Dietary Reference Intakes:
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/19/2008 for the course NTR 311 taught by Professor Lydiasteinman during the Spring '08 term at University of Texas at Austin.

Page1 / 17

Review Exam 1 - NTR 311 Review handout Exam 1 Chapter 1 *...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online