Food and Health - Past Paper PDF

## FOOD AND HEALTH - Are we what we eat? ### Food and nutrition (fc) Watch the videos on slides 4 and 5 and complete the gaps in the text below. We need **energy** and **material** to build and renew parts of our body, such as skin. Water and **mineral salts** are essential **inorganic** nutrient....

## FOOD AND HEALTH - Are we what we eat? ### Food and nutrition (fc) Watch the videos on slides 4 and 5 and complete the gaps in the text below. We need **energy** and **material** to build and renew parts of our body, such as skin. Water and **mineral salts** are essential **inorganic** nutrient. Water is the **medium** in which all the metabolic reactions occur. It performs many functions, such as transporting substances and regulating the **temperature** of our body. Fruit, vegetables and milk are foods that provide water. Mineral salts are involved in **regulating** functions and metabolic processes. They also form structures such as **bones** and teeth. Fruit and vegetables give us a lot of mineral salts. In addition to inorganic nutrients, we need **organic** nutrients such as carbohydrates, lipids, proteins and vitamins. **Carbohydrates** give us fast energy and are essential for our brain to work. There are simple carbohydrates, such as **glucose** and other more complex ones, such as **starch**. Cereals, pulses, fruit and sweet foods give us most of the carbohydrates we need. Lipids constitute the energy reserve of our body and protect us from the cold. Lipids from animals, such as **butter** and bacon, are **solid** and are known as animal fats. Vegetable fats are liquid and are called oils. Proteins provide us with the materials that form cells and structures such as hair and nails. Haemoglobin, for example, is a protein that carries **oxygen** in the blood and **antibodies** are proteins that defend us from infectious. Proteins come from animal sources such as **meat** fish, eggs, milk and cheese; and plant sources such as cereals and pulses. **Vitamins** are substances that are not synthesized in our body and must be ingested. They are mainly present in fresh **vegetables** and fruits.