Two Levels of Respiration
Respiration
The function of the respiratory system of the body is to take in ______which can be represented by the chemical symbols______.
The lungs transfer this chemical to the ______so it can be delivered to every cell of the body.
Digestion
The function of the digestive system is to take in______and break them into small pieces so they can be absorbed by the intestines into the ______and carried to every cell in the body.
Cellular Respiration
The circulatory system pumps the blood to deliver ______and ______to every cell. The cells use these to provide energy for the cells to function and grow. The process that cells use to get the energy is called CELLULAR RESPIRATION.
Build a model of glucose
Each atom is represented by a different color of foam. carbon (C) green
oxygen (O) blue
hydrogen (H) pink
Connect the C, H, and O atoms with toothpicks that represent the chemical bonds. Where there are two lines, use two toothpicks to represent the double bond. This is a model of glucose, a sugar which we will use to represent the sugars and other nutrients that a cell might use for energy.
Count out 12 more blue foam oxygen atoms. Connect them in pairs to form 6 O2. Use a double bond for each pair.
Besides energy, two products are produced when glucose is broken down during cellular respiration. Using all the foam atom pieces in the glucose and oxygen molecules you have built, build as many carbon dioxide and water molecules as you can.
Carbon dioxide Water
How many of each did you build? ____ CO2 ____ H2O
Which of these is carried by the blood back to the lungs where it is exhaled? ______If the body has excess water, it is gotten rid of by the kidneys.
Fill in the chemical reaction below to show what happens inside the cells. Include the number of each molecule involved or produced with a number before the chemical.
What two chemicals found in tobacco smoke interfere with this process? ______and ______