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APPENDIX A: Introduction and Instruction
The following is a basic outline of what should be taught in the introduction. This can be done through lecture, discussion, worksheets, etc.
Cells are the basic units of life. Every organism is made of cells. The six cell systems are:
- Energy Storage -- ATP and proteins
- Control -- Nucleus and DNA
- Heat Removal -- Plasma membrane lets heat out; cytoplasm reduces friction
- Waste Removal -- Vesicles and lysosomes
- Structure -- Cytoskeleton, plasma membrane, cell wall
- Energy Conversion -- Mitochondria combines oxygen with food to make ATP; ribosomes go through protein synthesis; chloroplasts go through photosynthesis in plant cells
Gasoline engines help operate cars. The use a tiny spark to explode gasoline and air. The six engine systems are:
- Energy Storage -- Gas tank
- Control -- Spark plug and key turn
- Heat Removal -- Water; fan; oil reduces friction
- Waste Removal -- Exhaust valve
- Structure -- Pistons and casing
- Energy Conversion -- Combustion chamber; reaction of gasoline and air with spark
Discussion Questions:
- Why are cells important?
- Why are engines important?
- How do cells and engines compare with each other?
- How do cells and engines correspond with each other in the real world?
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