Chapter 4.1 (Diet and Nutrition) Flashcards Preview

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Flashcards in Chapter 4.1 (Diet and Nutrition) Deck (20):
1

Define Balanced Diet

A diet containing a variety if foods from each of the food groups so there is adequate intake of nutrients

2

Define Glucose

A simple sugar and the major source of energy for the body

3

Define Glycogen

The stored form of glucose found in the muscles and the liver

4

What is the Glycaemic Index

This ranks carbohydrates according to their effect on our blood glucose levels

5

Define Cholesterol

A type of fat found in the blood

6

Define LDL (low-density lipoproteins)

They transport cholesterol in the blood to the tissues and are classed as 'bad' cholesterol since they are linked to an increased chance of heart disease

7

Define HDL (high-density lipoproteins)

They transport excess cholesterol in the blood back to the liver where it is broken down. HDLs are classed as 'good' cholesterol since they lower the risk of developing heart disease

8

Define Amino Acids

Used in all body cells to build proteins

9

Define Electrolytes

Salts and minerals found in the blood that can conduct electrical impulses in the body

10

Define Dehydration

Occurs when the body is losing more fluid than it is taking in

11

Define Glycogen Loading

A form of dietary manipulation to increase glycogen stores over and above what can normally be stored. It is used by endurance performers

12

What is Creatine?

A compound the body can make naturally which supplies energy for muscular contraction; can also be used as a supplement to increase athletic performance

13

Define the ATP-PC system

An energy system that provides quick bursts of energy and is used for high intensity exercise but it can only last for up to 10 seconds

14

Define ATP (adenosine tri-phosphate)

Energy

15

Define Sodium Bicarbonate (NaHCO3)

A white soluble compound used as an antacid

16

Define Buffering

The ability of the blood to compensate for the build up of lactic acid or hydrogen ions to maintain the pH level

17

What are Hydrogen Ions?

Responsible for the acidity of the blood

18

Define Lactic Acid

A by-product of anaerobic respiration; as it accumulates, it causes fatigue

19

What is Caffeine?

A naturally occurring stimulant

20

Define Diuretic

Increases the production of urine