SS 1 Food & Nutrition (1st Term)

Food & Nutrition

ABSORPTION

The process by which the end products of digestion pass through the lining of the digestive tract is called absorption. Absorption takes place through the inner lining of the small intestine called villi. the simple sugar and amino acids enter into the blood directly while the fatty acids enter the blood system indirectly through the […]

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Food & Nutrition

THE DIGESTIVE SYSTEM

The food taken into our mouth requires some kind of alteration before they can be absorbed into the blood stream. Digestion is the process by which food molecules are broken down into various small substances that can be absorbed into the blood stream and assimilated into the cells for utilization. Digestion is mainly a chemical

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Food & Nutrition

DIETARY DEFICIENCY

Some diseases are caused by lack of or shortage of specific nutrients in the meals we take, when this happens one begins to show signs of health imbalance. When a diseases is caused due to excess or lack of specific nutrient, the diseases are called malnutrition. To correct this, an intake of the nutrient which

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Food & Nutrition

MINERAL ELEMENTS

Mineral elements are also required in a very minor quantity by the body. They are inorganic in nature and perform a variety of functions like growth and vital metabolic activities. Mineral elements are usually classified into two groups. Macro elements. Micro elements. The macro elements are also called trace elements and they include sodium, calcium,

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Food & Nutrition

Vitamins

Vitamins are inorganic in nature. They are required in a very little quantity by the body. Vitamin can be classified into two main groups: Water soluble vitamins. Fat soluble vitamins Water soluble vitamins: these are vitamins that dissolve in water. E.g. the B complex(B1) , B2, B6, B12, B15, folic acid, niacin, biotin pantothenic acid,

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Food & Nutrition

FATS AND OILS

Fats and oil are another group of macro nutrients that is required by the body. It composes of carbon, oxygen and hydrogen. Excess carbohydrates and proteins can be converted into fats and stored under the skin. The structural unit of fats and oils are glycerol and fatty acid. Differences between fats and oils Fats Oils

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Food & Nutrition

PROTEINS

Protein is another macro nutrient required by the body. Protein is made up of carbon, hydrogen nitrogen, and oxygen. The major structural unit of protein is amino acid. Protein can be classified into two. Protein that contain all the essential amino acids are called first class or complete or animal proteins. The other class of

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Food & Nutrition

BASIC FOOD NUTRIENTS

Nutrients that are required in a fairly large quantity by the body are referred to as macro nutrients while micro nutrients are required in a very little quantity. All these nutrients perform specific functions in the body and their lack or shortage in our diet results to deficiencies. CARBOHYDRATES Carbohydrates are made up of carbon,

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Food & Nutrition

Career opportunities available in foods and nutrition

Career opportunities available in foods and nutrition are: Teaching. Dietetics. Hospitality and tourism Food science. Food science and technology. Food engineering. Hotel and catering management. Food research and development. Community nutrition. Institutional matron. Clinical nutrition. Nutrition in media.   Evaluation: mention the importance of human nutrition.   See also BASIC FOOD NUTRIENTS FOOD AND NUTRITION

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Food & Nutrition

INTRODUCTION TO FOOD AND NUTRITION

The search for food has been the occupation of mankind from the onset. Food is very important to our day to day life. Food can be defined as what nourishes the body. It is any substance which after consumption, digestion and absorption produces energy, promotes growth, repair body tissues and regulate all body processes. Food

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