B1b - human health and diet Flashcards Preview

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Flashcards in B1b - human health and diet Deck (16):
1

What are carbohydrates made up of?

simple sugars and glucose

2

What are fats made up of?

fatty acids and glycerol

3

What are proteins made up of?

amino acids

4

Where are carbohydrates stored

in liver as glycogen or converted to fats

5

Where are fats stored?

under skin and around organs as adipose tissue

6

Where are proteins and everything else stored

not stored

7

How do balanced diets vary? (6)

depending on:
age - teens need protein, old need calcium

gender - females need iron to replace iron lost in menstrual blood

activity - active people need protein for muscle development and carbs

religion

personal choice (veg)

medical issues (allergies)

8

Why are diets in many parts of the world deficient in protein? (2)

overpopulation

limited investment in agricultural techniques

9

EAR formula

EAR in g = 0.6 * body mass in kg

10

What is EAR

estimated daily figure for an average person of a certain body mass

11

Deficiency disease for protein

kwashiorkor

12

What does EAR vary depending on? (3)

age - teens need more protein since they are still growing

pregnancy - more protein to help baby grow

lactation - more protein to produce milk

13

BMI formula

BMI = mass in kg/(height in m)2

14

BMI guide (4)

15

Psychological causes for poor diets and impact (2)

low self-esteem, poor self-image, desire for perfection, disorders (anorexia/bulimia nervosa) lead to poor diet/undernutrition

causes other illnesses (liver failure, kidney failure, heart attacks, muscle wastage, low blood pressure, mineral deficiencies)

16

What do vegetarians need to eat in terms of proteins and why? (3)

they need to eat second-class proteins from a wider range of sources compared to people who eat first-class proteins (animal origin)
-second class protein do not contain all the essential amino acids

first-class proteins contain essential amino acids that cannot be made by body