Background Research 3-4
Experiment
Hypothesis 5
Variables 5
Equipment 5
Risk Assessment 5
Method 6
Results 6
Analysis/Discussion 7
Conclusion 8
Acknowledgments/Bibliography 8
Table of Contents Background Research
As an object becomes bigger its surface area and volume increases but the surface area to volume ratio decreases, this is because volume increases quicker than the surface area; as volume is three dimensional. This concept applies to cells and reaction rate because cells need to absorb their food, water and oxygen through their cell membrane and depending on the size of the cell membrane the rate at which it absorbs its requirements is changed. If the cell is large, the time which it takes to absorb its necessities will be longer because its surface area to volume ratio decreases. The larger the cell the more nutrients it requires. That is why the larger the organism, the more cells it requires and the smaller they need to be. The smaller cells absorb their requirements quicker and are therefore more efficient in nourishing the large organism.
The reaction rate is best described as the speed at which a function, process or action occurs. The larger the surface area that is exposed to the cells nutrients the quicker it is able to absorb those …show more content…
The chewing and grinding that the teeth do to break up the food into smaller pieces is how they create more exposed surface area, the enzyme in saliva also helps in breaking down the food. Then the more surface area that is exposed, the more quickly the digestive enzymes can attack it. The broken up food then travels down the oesophagus and into the stomach where it churns the food with acid and the enzymes digest the proteins, the more exposed surface area helps with the reaction rate of the acid on the