1. explain how the basic formula describing the fcators (area, distance, concent
ID: 215968 • Letter: 1
Question
1. explain how the basic formula describing the fcators (area, distance, concentration, gradient) that control uptake of oxygen into the lungs really applies to the design of not only the lungs, but also our intestines, our transport systems, nutrient uptake in plants, CO2 uptake in plants,etc?
2. why do our stomach and small intestines have digestive enzymes that need to be activated before they can be used?
3. How is Digestion in animals, Nutrition in plants, transport, gas exhancge, reproduction and defense are all related to energy collection and use by plants and animals.
Explanation / Answer
1.
Fick’s law uses all the factors like surface area, distance, and concentration gradient. This can be applied to the design of lungs that control the uptake of oxygen. In the mammals the surface area for the gaseous exchange is provide by the lungs containing alveoli. The transport system also coordinates with the lungs for gaseous exchange. In the small intestine nutrients get absorbed through the muscular folding (provide the surface area) to the blood. The nutrient and CO2 uptake in the plants also use the same mechanism and the factors that are used for the lungs.
2.
The group of enzymes in the elementary canal is collectively called as digestive enzymes. These enzymes help in breakdown of polymeric macromolecules into the simple molecules. This process helps in facilitating the absorption of the nutrients from the food by the body.
3.
Digestion in the animals is aid by the digestive enzymes and the nutrients absorbed by this process help in providing the energy by performing the reactions. These reactions need oxygen to give energy and this oxygen comes from the gaseous exchange. Nutrition in the plant also helps in generating the energy and stores it to perform the essential reactions. The reproduction and defense are also the process that used to do to conserve the energy. So, all the given process are related to energy collection that are used by the plants and animals.
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