Respiratory System: Why is it important for all organisms
The Dependence on Oxygen
Oxygen is a vital element to all living organisms. As organisms, oxygen is needed to be absorbed into the bloodstream and used for energy. Oxygen makes a journey into many different organs and diffused into the bloodstream. When we breathe in,, the oxygen-rich air goes to our pulmonary veins and then gets diffused into our heart. The heart then uses the oxygen-rich blood and sends it to the parts of the body that needs it the most. Once the body takes the oxygen-rich blood is depleted, it is sent back to the heart as deoxygenated blood. The heart sends the deoxygenated blood to the lungs and the lung's job is to breathe out the waste, which is turned into carbon dioxide. Without oxygen, our bodies would not be able to function, because without oxygen, we have no energy.
Energy- The function of Cellular Respiration and ATP
To obtain energy, cells released energy from the food molecules they've stored. . APT is the chemical process in which the energy is released. For example, 3 phosphorus with 2 bonds in between them is a dominant molecule until energy is needed. From this, one of the phosphorus breaks off and the bond that is exposed is released energy to the mitochondria. This cycle repeats until the demand for energy is met.
Energy- The function of Cellular Respiration and ATP
To obtain energy, cells released energy from the food molecules they've stored. . APT is the chemical process in which the energy is released. For example, 3 phosphorus with 2 bonds in between them is a dominant molecule until energy is needed. From this, one of the phosphorus breaks off and the bond that is exposed is released energy to the mitochondria. This cycle repeats until the demand for energy is met.
Fiddler Crab Respiration
Fiddler Crabs do need the use of oxygen, but they obtain it differently than a mammal such as a human. Fiddler Crabs, like any aquatic animal, have gills to breathe air. With gills, the fiddler crab takes in the oxygen-rich water and air from, because the fiddler crab is a species that can be dwell in the water and also on land. The oxygen from the air or water goes into the gills of the fiddler crab and it is sent to the heart, and from there, it is sent to the rest of the body for energy. The gills must work constantly and must be moist to absorb the air because the fiddler crab can not draw in air like humans do. When underwater, the gills work steadily to draw in air because the air in the water is 1/20th then the air on the surface. The gills are essential for the Fiddler crab to breathe and is the most important body part.
Diffusion:
For diffusion to occur in a Fiddler crab, there has to be a change in the concentration in a substance. For example, in ammonia rich environment- the ammonia is able to seep through the crab's gills and openings, and once inside the bloodstream, it is unable to get out. If not treated or fixed, the crab will eventually die because of the high ammonia levels.
Regulation:
The Fiddler Crab is able to regulate it's body temperature only in occurrence with the water temperature. In the water temperature is too cold, the crab will seek out a warmer place because extreme temperatures are lethal. The crab regulates it's temperature through it's gills, and since the fiddler crab is cold-blooded, optimal water temperature is important.
sources:
Biology notes taken on human respiration
http://www.mesa.edu.au/crabs/assets/breathing.htm
Diffusion:
For diffusion to occur in a Fiddler crab, there has to be a change in the concentration in a substance. For example, in ammonia rich environment- the ammonia is able to seep through the crab's gills and openings, and once inside the bloodstream, it is unable to get out. If not treated or fixed, the crab will eventually die because of the high ammonia levels.
Regulation:
The Fiddler Crab is able to regulate it's body temperature only in occurrence with the water temperature. In the water temperature is too cold, the crab will seek out a warmer place because extreme temperatures are lethal. The crab regulates it's temperature through it's gills, and since the fiddler crab is cold-blooded, optimal water temperature is important.
sources:
Biology notes taken on human respiration
http://www.mesa.edu.au/crabs/assets/breathing.htm