Surface Area Flashcards
What is a surface area?
Area of all surfaces or faces on a 3-D shape.
Area of a cuboid = Area of 2 squares+Area of two rectangles
Area of cylinder = Area of two circles+ Area of rectangle
Why is surface area important for digestion?
The greater the surface area, the more there is for enzymes to get to work and break down the food.
The greater the surface area, the greater is the rate of absorption specially in small intestine.
Why a sugar granules are easy to dissolve than a big sugar cube?
Sugar granules are small and hence total surface area of all granules put together is more than one large cube.So its easier to dissolve.
Why same amount of food is digested faster when it is in small pieces compared to large pieces?
Smaller pieces -> more surface area -> more space for enzymes to work on and digest.
