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NOTES Inv. 2 Supporting Cells.notebook NOTES Inv. 2 Supporting Cells / / p. Food (energy) Delivery System into our Bodies Excretory System digestive system breaks down food into molecules that cells can use nutrient molecules pass into the bloodstream through the small intestine the body gets its energy from the food we eat NOTES Inv. 2 Supporting Cells.notebook NOTES Inv. 2 Supporting Cells / / p. Oxygen Delivery System into our Bodies cardiovascular system refers to the circulatory system blood picks up nutrients in the small intestine blood travels to the lungs after it picks up the nutrients the circulatory system pumps blood throughout the body so that the blood can deliver oxygen and nutrients to the cells 3 types of blood vessels: arteries, veins, and capillaries Arteries carry blood Away from the heart; veins carry blood to the heart NOTES Inv. 2 Supporting Cells.notebook NOTES Inv. 2 Supporting Cells / / p. Oxygen Delivery System into our Bodies oxygen transfers into the bloodstream from the lungs oxygen travels: through nose/mouth > through trachea > into lungs > into the bronchi > into the alveoli (air sacs) capillaries surrounding the air sacs are where the oxygen passes into the bloodstream NOTES Inv. 2 Supporting Cells.notebook Investigation 2 Notes Supporting Cells 10/21/16 oxygen and nutrients are the two main resources that cells need to function and stay alive humans get nutrients from the foods/drinks that contain calories calorie: a unit that measures the amount of energy in food water, sleep, exercise, etc. are essential for cells and humans to function; but they do NOT provide energy for the cells the more physical activity our bodies do, the faster our heart pumps and the faster we breathe so the blood can get oxygen to the cells we can detect this by checking our pulse rate all cells need oxygen and nutrients NOTES Inv. 2 Supporting Cells.notebook CHARACTERISTICS DEFINITION The process almost all cells use to turn food molecules and oxygen into energy to live and grow • requires oxygen • occurs in cells, both plant and animal cells • carbon dioxide and water are the waste products aerobic cellular EXAMPLE respiration In the human body, cells use glucose from the digestive system and oxygen from the respiratory system to obtain usable energy NONEXAMPLE Photosynthesis plants capture energy from the Sun and use it to turn carbon dioxide and water into glucose and oxygen NOTES Inv. 2 Supporting Cells.notebook Aerobic Cellular Respiration SUMMARY Respiratory Digestive system system Circulatory system (blood) Food Oxygen (glucose) TO CELLS (O2) AT CELLS Energy (aerobic cellular respiration) C6H12O6 + O2 Energy + CO2 + H2O FROM CELLS Carbon Waste water dioxide (H2O) (CO2) Circulatory system (blood) Excretory Respiratory system system NOTES Inv. 2 Supporting Cells.notebook Digestive system Food enters the Oxygen enters the body through the mouth. body through the Respiratory Circulatory system nose/mouth. system Food enters the bloodstream. Oxygen enters the bloodstream. (blood) Food Oxygen (glucose) Food goes to the cells. TO CELLS (O2) Oxygen goes to the cells. AT CELLS ENERGY is made!!! Energy (aerobic cellular respiration) C6H12O6 + O2 Energy + CO2 + H2O FROM CELLS Carbon Waste water dioxide (H2O) (CO2) H2O enters the bloodstream. Circulatory CO2 enters the bloodstream. system (blood) Excretory Respiratory system system Water is excreted from Water and CO2 are excreted the body through the from the body through the excretory system. respiratory system. NOTES Inv. 2 Supporting Cells.notebook Investigation 2 Notes Supporting Cells / / p. ~Big Ideas~ The human body is made of systems, which are made of organs, which are made of tissues, which are made of cells All the human organ systems interact in order for a human to live and carry out life functions. The most important function is servicing cells. In a human, the circulatory system pumps blood, which carries resources to each cell and carries away waste. Cells use glucose and oxygen, provided by the digestive and respiratory systems, to provide usable energy for the cell. This process is aerobic cellular respiration. Carbon dioxide and water are the waste products of aerobic cellular respiration and are removed by the respiratory and excretory systems. Modeling systems is useful to describe processes and construct explanations. NOTES Inv. 2 Supporting Cells.notebook NOTES Inv. 2 Supporting Cells.notebook NOTES Inv. 2 Supporting Cells.notebook NOTES Inv. 2 Supporting Cells.notebook