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Digestive System Lab Report

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Evidence: Our whole body is a working system from bones to muscles to veins and arteries. Here are some of the systems we learned about. First off is the digestive system. This system breaks down food and provides nutrients for the body.DIffusion is when something can go in and out and get rid of the toxins in our body and keep the good nutrients. A lab we worked on is the iodine lab we used a baggy and put iodine in it and had a cup of starch and we saw that the iodine in the baggy can diffuse in and out of the bag. When the body first starts to digest food, this is called mechanical digestion. Your mouth has teeth that can chomp down on food and break it down. Mechanical digestion also happens in our stomach by contracting and breaking down food particles. Another thing that happens in your mouth is Chemical digestion. Your saliva has enzymes that break down starch in sugar which is comes from food. Your stomach also has chemical digestion because you stomach has pepsin and enzymes. …show more content…
The function of the Circulatory system is to pump blood through the body. A lab that we did was the diffusion lab. Again like i said the definition of diffusion is when something can go in and out and flush non needed nutrients out of the body and keep the good nutrients. An example of this is glucose and oxygen because they both diffuse into cells which means they have a chemical reaction. Blood travels through our body because of arteries and veins. Arteries take the blood away from are hear while veins bring the blood to the heart. Glucose and oxygen diffuse into cells, which is a chemical reaction. This can change potential energy stored in food, into kinetic and thermal energy The heart,Respiratory, and Digestive systems, bring food molecules and oxygen to the

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