Healthy and Unhealthy food can be pointed out easily on a one factor. The factor is 'did the human interfere with the food'.in another words, any food that does not grow naturally or it is modified by the human is 99.5% of the time bad for aside from medicine and other medical substances. For example, the food that is restaurants and especially fast food restaurants intend to always get taster, and since our bodies like certain substance, they increase it to make us like it. Even though it might contain some fats or nutrients that are good for you, yet too much is not good. Our bodies like fats, in most of the restaurants, if you check you can find the amount of oil they use is incredible. it contains more calories than you need for one day. Worse than that, If you eat too much fat, it will be left behind in your body damaging it and blocking your blood vessels which gives a high blood pressure and a high chance of heart attack. However, the healthy food is the vegetables and fruits. Even though the human interfered with them, yet he only changed a sentence in the book unlike fast food. The healthy food contains fibers that is not digested but it is used for cleaning your digestive system and scrub the waste food and preventing it from being attached to your large intestine and blocking the way. The healthy food also contains high amounts of nutrients and proteins. It contains low fat and calories rates which makes it easier to eat a lot of them and not worrying about your health. However, the can food or fast food sometimes contains 0 protein and nutrients and very high amounts of fat and calories which also helps in gaining weight. The fast food also contains a lot of fat that soon becomes addictive and it can lead into bad habits.

From my point of view, home made food is the best (at least for me). In my house we put a lot of vegetables in our food and some meat that is always heated or boiled with water and rarely fried with oil for one minute or less to give crispy taste or to make it taste better. We also avoid acidic drinks such as Pepsi and especially Fanta and other colored, sugar flavored drinks. instead we either make our own juices or if we were lazy we would drink the juices bought from a store which are better than acidic drinks.

the parts of the digestive system and their functions

The mouth is the where the first stage of chemical and mechanical digestion to take a place. The mouth uses mechanical digestion by the healp of the four sets of teeth which are the incisor (front teeth and it is used for cutting), the canines (the tooth after the incisor which is usually sharper than the other teeth and it is used for percieng and tearing), the premolars and molars which are used for crushing and grinding nd the tongue which is used for moving the food around. The chmical digestion take place when your salaviary glands produce salavia which helps to soften the food. The food is also covered with a layer of salavia to make it easier to swallow down the esophugas. Also the chemical digestion happens when enzymes are produced. These enzymes are used to break down starch.



The Esophugas is a tube that contains muscules on the walls/sides that push the food down to your stomach in a wavelike motion. This motion is called presitalsis.



The Stomach is ina shape of a bag. The stomach walls/sides contain mescules that move the food and mix it. The stomach produces stomach acid that helps in the chemical digestion and it also produces pipsogen and hydrochloric that mix and turn into an enzyme called pepsin. The pepsin however does not take place in stomach, it is sent to the intestine to breakdown proteins. In addition to breaking down food, it also releases strong acids that kills any swallon bacteria. The stomach walls produce mucus lining on the walls that help to protect against the asrong acids and enzymes.

The Intestines is responsible for absorbing all the nutrients in the food. The food is broken down into a liquid before it reaches your small intestine so it can be absorbed and merged to blood. The small intestine also have many folds that help to increase the surface area and help the liquid to flow easier. The blood vessels surround the small intestine which makes it possible for the blood to carry nutrients, proteins, fats, etc to the body.

The Large intestine Is responsible for taking the waste products and absorbing th water out and then eject it out of the body.

What is My MYP Grade

This unit we worked on feel the force unit where we discover how newton's three law of motion affect us and how simple machine operate. Ahmed did well in his eassay and his tests describing the functions of simple machines and communicating Newton's laws. He also showed an outsanding understanding of the subject. He however, need to improve more on his homework

The Mouth

The mouth is where the first stage of mechanical and chemical digestion happen. Mechanical digestion happen when you collapse booth of your teeth sets together and chew the food. The tongue also helps in the mechanical digestion by movinbg the food around. Chemical digestion happen when saliava start merging with the food to soften it and cover it with a slim cover that helps it to slide down easier. The mouth also is used for realeasing the air that is trapped inside you and it is used for speaking as well.