1. Introduction Flashcards
1
Q
Difference between Macro // Micro nutrients
A
- carbs, fat, protein // vitamins and minerals
- needed in gram amounts // milli or microgram amounts
- provide energy // no energy
2
Q
Meanings of “Vita” and “Amine”
A
Vita = Life Amine = N containing
3
Q
Definition of vitamins (5)
A
- Organic Compound (non-caloric)
- Natural component of food (present in minute amounts)
- Essential for normal PHYSIOLOGICAL FUNCTION
- Specific deficiency syndrome
- Not synthesized in adequate amounts for physiological needs
4
Q
How many vitamins are there?
A
14
5
Q
How many B vitamins are there?
What are they?
A
8 total: Thiamin = B1 Riboflavin = B2 Niacin = B3 Pantothenic Acid = B5 Pyridoxine = B6 Biotin Folic Acid Cabalamin = B12 *** Choline closely related to the B bits
6
Q
What are the water-soluble vitamins?
A
B vits (+ choline), and Vit C
10 total
7
Q
Classification of water soluble vitamins (5)
A
- hydrophilic
- can’t be stored (needed daily)
- move directly into blood (travel freely)
- easily taken up and released by tissues
- excess excreted in urine
8
Q
Water soluble vitamins are non-toxic, because?
A
Excess is excreted in urine
9
Q
Fat soluble vitamins
A
Vits A, D, E, K
10
Q
Classification of fat-soluble vitamins (6)
A
hydrophobic dissolve in fat (dietary and body) need dietary fat to be absorbed enter blood via lymph; need transport proteins can be stored (liver and body fat) More concern about excess
11
Q
def Organic
A
Carbon containing
12
Q
T or F?
Vitamins can be easily destroyed?
A
True
** remember
13
Q
What vitamins are particularly vulnerable to being destroyed? (3)
A
Thiamin, Riboflavin, Vit C
14
Q
What destroys Thiamin?
A
Prolonged Heating
15
Q
What destroys Riboflavin?
A
UV light
