Sciences - Co-ordinated (9-1) - 0973 CIE

Diet

Bayani Gaba-gaba

You are what you eat, quite literally: the food in your diet supplies the energy and raw materials to build every cell. But it is not enough to eat plenty; you need the right balance of seven different nutrients. Miss out on just one, such as vitamin C or vitamin D, and a deficiency disease follows.

In this lesson you will learn what a balanced diet is, the dietary sources and importance of each nutrient (carbohydrates, fats, proteins, vitamins C and D, the mineral ions calcium and iron, fibre and water), and the causes of two classic deficiency diseases, scurvy and rickets.

Manufura

Describe what is meant by a balanced diet
State the principal dietary sources and describe the importance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, limited to C and D (e) mineral ions, limited to calcium and iron (f) fibre (roughage) (g) water
State the causes of scurvy and rickets

Takardar Darasi

Diet links the chemistry of food molecules to human health. Examiners ask for the components of a balanced diet, the job and a food source of each nutrient, and the causes of scurvy and rickets. These are precise, learnable facts that reliably appear, and they connect to digestion, blood and bones elsewhere in the course.

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Nazarin Darasi

Barka da kammala darasi akan Diet. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

Which nutrient is needed mainly for growth and repair of tissues? A. carbohydrate B. fat C. protein D. fibre Answer: C
A lack of vitamin C causes: A. rickets B. scurvy C. anaemia D. constipation Answer: B
Iron is needed in the diet to make: A. bones B. haemoglobin C. enzymes D. cellulose Answer: B
Which mineral ion makes bones and teeth hard? A. iron B. calcium C. nitrate D. magnesium Answer: B
Rickets in children is caused by a lack of: A. vitamin C B. vitamin D C. fibre D. protein Answer: B