Nutrition and Nutrients Flashcards
Definition of Enzymes
Proteins that speed up the chemical processes in the body
Definition of Hormones
The body’s chemical messengers and metabolic regulators
3 Functions of Protein
- Builds, maintains and repairs body tissue
- Manufactures antibodies to help diseases
- Regulates blood sugar and helps with blood clotting
How much energy dopes the body need daily(in KJ)
16,8 Kj
Whats are the molecules called that form protein?
Amino acids
How many Amino Acids does the Body need daily and how many HAVE to come from food?
Daily=22
Come from food=8
3 High Value Protein Foods
1.Eggs
2. Meat
3. Chicken
3 Effects of Too Much Protein
- Increased amounts of Calcium which can cause the body to excrete it in urine
2.Heart disease - Kidney stones
3 Effects of Too Little Protein
- Protein energy malnutrition
- Sever forms of Marasmus
- and Kwasiorkor
3 Groups Carbohydrates are Divided into?
- Starch
- Sugar
- Cellulose
Definition of Glucose
Also known as blood sugar, is the body’s main source of energy
Definition of Fructose
Sugar found in fruit
Definition of Sucrose
Common table sugar, extracted from Cane/Beat
Definition of Lactose
Sugar found in Milk
What percentage of the body’s daily energy has to come from starch?
55%
3 Functions of Dietary Fibre
- Keeps digestive system healthy
- Increases facial bulk
- Helps control blood sugar/glucose levels
Effect of Too Much Carbs
Goo much can be burned and end up being stored as body fat
Effects of Too Little Carbs
- Causes an imbalance in the metabolism
- Uses protein energy source which causes a breakdown in the muscles
- Nausea, Fatigue
3 Functions of Fats and Lipids
- Provides a concentrated source of energy
- Helps to digest food
- Regulates body temperature
Effects of Too Much Fats/Lipids
- Heart disease
- High blood pressure
- Obesity
Effect of Too Little Fats/Lipids
Affects body’s metabolism
What are Saturated Fats?
- Solid at room temperature
- Intake should be limited to one third of the total fat intake
What are Polyunstrated Fats?
- Essential fat
- Can be found in vegetables
What are Trans Fatty Acids?
- Produced when hydrogen is pumped into the oil to make it solid at room temperature
- This fat is harmful and cause cardiovascular diseases