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Insights Human Body Systems Kit Lesson # Lesson Title 3 What are Cells? 4 Blood and the Heart 5 6 7 Lesson Summary Complex organisms are made of cells that work together. Cells need food and oxygen. Supplies needed by cells are carried through the body by the circulatory system. The flow of blood follows a specific path through the heart chambers. The Transportation System The circulatory system has many different components including the heart, blood, veins, arteries and capillaries. Food and Fuel: The Digestive System Food moves through a series of organs in the digestive pathway. Each organ has a specific role in digestion. The digestive system works to make food usable for the cells. What Happens in the Digestive System? Breaking Down Food The breakdown of food occurs both mechanically and chemically. Food must be broken down into a form that can be used by cells. Standard # 2.a 2.b 2.b 2.c 2.c 2.g Standard Text Students know many multicellular organisms have specialized structures to support the transport of materials. Students know how blood circulates through the heart chambers, lungs, and body and how carbon dioxide (CO2) and oxygen (O2) are exchanged in the lungs and tissues. Students know how blood circulates through the heart chambers, lungs, and body and how carbon dioxide (CO2) and oxygen (O2) are exchanged in the lungs and tissues. Students know the sequential steps of digestion and the roles of the teeth and the mouth, esophagus, stomach, small intestine, large intestine, and colon in the function of the digestive system. Students know the sequential steps of digestion and the roles of the teeth and the mouth, esophagus, stomach, small intestine, large intestine, and colon in the function of the digestive system. Students know that plant and animal cells breakdown sugar to obtain energy, a process resulting in carbon dioxide (CO2) and water (respiration). Lesson # 8 10 11 12 Lesson Title Lesson Summary How Does the Food Get Out? Membranes and Diffusion Red blood cells are part of the transportation system that brings food to all of the cells. Nutrients can move out of the small intestine and into the bloodstream by diffusion. Breathing: Getting Air Into the Body Red blood cells carry oxygen to all the cells in the body. Oxygen moves from areas of higher concentration (alveoli and villi) to areas of lower concentration (bloodstream) by diffusion. What Goes in Must Come Out: Tying it All Together Kidneys are organs that filter the blood. The systems of the body are interconnected and can be represented on a flowchart. What Happens When You Exercise? During exercise some parts of the body need more food and oxygen. The human body is composed of interdependent systems with specialized functions. Standard # 2.a 2.c Standard Text Students know many multicellular organisms have specialized structures to support the transport of materials. Students know the sequential steps of digestion and the roles of the teeth and the mouth, esophagus, stomach, small intestine, large intestine, and colon in the function of the digestive system. 2.b Students know how blood circulates through the heart chambers, lungs, and body and how carbon dioxide (CO2) and oxygen (O2) are exchanged in the lungs and tissues. 2.d Students know the role of the kidney in removing cellular waste from blood and converting it to urine, which is stored in the bladder. 2.a Students know many multicellular organisms have specialized structures to support the transport of materials.