A container with a lid (like a coffee jar) Splint and a lighter
Method 1. Place the dried peas into the jar. 2. Add some water to start germination. 3. Secure the lid onto the jar. 4. Leave the container in a warm place for a few days. As the peas respire they will use up the oxygen in the jar and produce carbon dioxide.
5. Light your splint. Carefully and quickly open the lid and place the lighted splint inside the jar.
Results A lighted splint will extinguish in carbon dioxide. If your splint goes out it means that carbon dioxide was produced inside the jar by the respiring peas.
Fig. 11 Germinating peas.
Fig. 12 Add water to begin germination.
Question How could you set up a control for this experiment?
Anaerobic respiration in muscle Anaerobic respiration is a type of respiration that occurs when there is not enough oxygen available for aerobic respiration to occur. It can happen in the muscles of animals when they exercise too much. Glucose is incompletely broken down in the absence of oxygen producing lactic acid and a small amount of energy.
Word equation for anaerobic respiration in muscle: Glucose
Lactic acid + Small amount of energy
When we exercise, our muscles need more energy than when we are resting. Our heart rate increases to bring glucose and oxygen contained in our blood to our muscle cells. Our breathing rate also needs to increase to supply more oxygen to our bloodstream. If our muscles are still not receiving enough oxygen, anaerobic respiration takes place to release energy. The burning sensation you feel in your muscles after exercise is caused by a build-up of lactic acid. We
