(BIOL.)NUTRITION class -1322..HAVE A EXAm #3

BIOL 1322 General Nutrition

Basic Study Guide for Exam #3

This is a general guide to use as you prepare for Exam #3 (Units 8-10). It is not going to tell you what to

study for every single question.

To successfully study for Exams

1. Read the chapters in the book. 2. Study the PowerPoint. This doesn’t mean read through it once or twice, but to actually study it.

Own the information. A great way to learn the info is to teach it others.

3. Review the quizzes. Questions will be similar.

Areas to focus on:

 Functions and criteria of vitamins. How many compounds meet criteria of vitamins?

 Know the water/fat soluble vitamins,

 How were vitamins named

 Where does absorption of vitamins occur? Where are A, D, E and K stored? How are fat/water

soluble vitamins transported

 Know the characteristics of water-soluble vitamins

 Understand digestion/absorption of vitamins: micelle, chylomicron, portal vein, lymph fluid,

 Know the factors that affect vitamin bioavailability

 What destroys water soluble vitamins

 Understand the importance of antioxidants, what do they help minimize/neutralize, what are the 5

compounds considered antioxidants, best source

 Be able to match characteristics of fat/water soluble vitamins to the correct vitamin

 What is the name for vitamin toxicity

 Know the criteria for a vitamin

 Average healthy adult is ___ to ___% water. Know whether babies or older adults have more or less

water

 Distribution of water depends on? If I gave you sample people, know who would have the most water

content based on these factors.

 Know functions of water; understand the picture showing how water regulates body temperature

 How is body water balanced? Intake vs Output. Sources of intake?

 What determines how much water is lost through sweat? Be able to pick out which person/situation

would result in the most sweat lost.

 Distinguish between intra/extracellular fluid

 Understand ions: cation/anion, which minerals have electrical charge?

 Osmosis: osmotic pressure, osmolality

 Understand the sodium-potassium pump. Read the section in the book if the notes don’t make sense.

 Know how water and sodium affect blood pressure. Know the 3 hormones and 1 enzyme that controls

blood volume. Know the sodium/blood pressure image VERY well.

 Know some examples of foods with high water content (think fr/veg)

 Do caffeine and alcohol cause dehydration? Are they diuretics? Can you develop tolerance?

 What type of medicines help blood pressure? How do they work?

 Water intoxication: results in ?, Can cause swelling in the _____. Symptoms include?

 Effects of dehydration

 Understand thirst mechanism

 How can an athlete see how much water they’ve lost during exercise? What is the recommendation

for rehydrating?

 What color should our urine be to indicate hydration?

 Know these key words and characteristics of each: cation, anion, interstitial fluid, osmosis, albumin,

insensible/sensible water loss

 Can minerals be toxic?

 What are the categories of minerals and are they organic or inorganic

 What is the cutoff value/amount for trace vs major minerals

 Do we need a daily supplement

 What minerals are associated with bones/teeth

 What are the factors that increase/decrease absorption of minerals

 How are minerals kept balanced in the body

 Be able to determine from a list of people who would absorb the most iron