Nutrition

• carbohydrates contain starch and provide energy and our food in foods like rice and bread.
• protein is needed for growth and repair and are found in foods like milk and egg whites
• fat is used to store energy and for insulation and is found in food like butter , oil and egg yolk
• minerals and vitamins are needed in small amounts to keep us healthy and are found in fruits and vegetables
• fibre is used for intestinal health and is found in vegetables
• water is the main component of cytoplasm and blood and our found in taps
• factors affecting calorie intake

  -Age

  -Gender

  -Activity level
• nutritional values are given per serving so that we know exactly what mass o each nutrient is in the food were eating
• it is given in 100g as it is easier to compare nutritional values of foods
• Why do we need energy?

  -Movement

  -maintain body heat

  -building larger molecules from smaller ones
• Gotirite is an iron deficiency and when experiencing you can have neck tightness and difficulty breathing. you need to eat more fresh fruit and iodized salt
• scurvy is a vitamin C deficiency and when experiencing you can have muscle pain. you need to take vitamin c supplements and oranges
• rickets is a vitamin D deficiency and when experiencing you have skeletal deformaties. you need fresh fish
• anemia is an iron deficiency and when experiencing you have tirdness and are pale. you need seafood and meat.
• obesity is when you have a high calorie intake and when experiencing you are usually overweight. to get rid of this you need to have a low calorie intake
• heart disease is when you have a heart attack and when experiencing you can have chest pains and fatigue. you should eat almonds and olive oil
• respiration occurs in the mitochondria and is the release of energy from glucose
• aerobic respiration

  glucose+oxygen-> Carbon dioxide+water

  this happens all the time
• anaerobic respiration

  Glucose->Lactic acid(toxic and must be removed)

  happens when body can't get enough oxygen