Healthy Eating Habits

  Practising good eating habits 1. For good health, we need a balanced diet that gives us different nutrients in the amount our body needs.   2. We must eat a variety of food because different foods have different combinations of...

READ MORE
Reabsorption of Water and Defecation

  1. The large intestine does not secrete any enzyme.   2. Water, minerals and vitamins are absorbed by the large intestine.   3. Peristalsis is slow in the large intestine.   4. Undigested and unabsorbed matter in the...

READ MORE
Absorption of Digested food

  1. The movement of digested food through the walls of the small intestine into the blood capillaries is called absorption.   2. Absorption takes place because of diffusion.   3. Adaptations of the small intestine for...

READ MORE
Human Digestive System

  1. Digestion is the process of breaking down large food molecules into smaller soluble molecules that can be readily absorbed by the body.   2. Digestion occurs in an eight-metre long tube called the gut or alimentary canal. The...

READ MORE
The Importance of a Balanced Diet

  1. Diet refers to the food we eat.   2. A balanced diet is a diet that contains all the seven classes of food in the right amounts.   3. The amount of food or energy that a person needs depends on several factors: (a) Age...

READ MORE
Analysing the Classes of Food

  1. Food is collection of chemicals taken into an organism for the following purposes: (a) It provides energy for cellular activities. (b) It provides raw materials for growth and repair of worn-out tissues. (c) It keeps the organism...

READ MORE
Next page