biology-keeping healthy

The eatwell plate:

green-fruit and veg

yellow-bread,rice,potatoes,pasta and other starchy foods

blue-milky and dairy foods

purple-food and drinks high in fat and sugar

pink-meat,fish.eggs,beans and other non dairy sources of protein

the main foos groups are:

carbohydrates-a source of energy for life process

fats-make cell membrane and insulate our body

protein-growth and repair-building cells

Irons and vitamons are also important because lets say for example you get too little vitamin D that can lead to rickets this is why we have balanced diets.

The metabolic rate is the speed at which chemical reactions take place in the body and varies because of several factors including : age, gender, and inherited factors. The metabolic rate is affected by the:

*proportion of muscle to fat in the body

*amount of exercise and other physical activity