Channeled Whelk Respiratory System
Every organism breathes by going through a process called cellular respiration.The formula for cellular respiration is C6H1206+6CO2->6CO2+6H20+energy(ATP). Organisms carry out respiration to make ATP which is energy. ATP is made when a triple phosphate in the mitochondria breaks to make a double phosphate bond. This break in the bond Oxygen is important to all living organisms. plants release oxygen though photosynthesis. Humans and Animals are able to carry out life functions because of oxygen. Oxygen enables the body to turn food into energy so cells can function. In humans, when oxygen is taken in by the lungs, it and enters the bloodstream through the alveoli which are located in the lungs. After oxygen accesses the blood, a protein called hemoglobin transfers the oxygen to the body and the heart. Carbon Dioxide is produced as a waste through cellular respiration.
Whelk's obtain oxygen from water. The molecules in water will capture oxygen molecules from the air and dissolve the oxygen molecules. Underwater animals get oxygen by using gills to take in water in dissolved form. The gills need to transport the oxygen molecules into the body of the animal but not let any water into it. The mantle of the Whelk extends out and forms a structure called the siphon. The siphon is where whelks are able to breathe. Siphons are generally not completely covered with shell but have openings on the bottom. Whelks do not have to move to obtain oxygen but can retrieve it solely through their siphon. Diffusion occurs past the gills of Whelks when the oxygen molecules from are transferred to the blood. When oxygen from the water is taken in, sent to the blood, and then transferred back out of the body as carbon dioxide, gases are exchanged. Whelks are warm/blooded and have to supply their own body heat. Whelks get energy from the food that they eat. After they receive nutrition, ATP transports chemical energy that is made in the cells to the metabolism. ATP (Adenosine triphosphate) is made up of 3 phosphates. It creates energy when one of the phosphates are broken and it turns to ADP.
Whelk's obtain oxygen from water. The molecules in water will capture oxygen molecules from the air and dissolve the oxygen molecules. Underwater animals get oxygen by using gills to take in water in dissolved form. The gills need to transport the oxygen molecules into the body of the animal but not let any water into it. The mantle of the Whelk extends out and forms a structure called the siphon. The siphon is where whelks are able to breathe. Siphons are generally not completely covered with shell but have openings on the bottom. Whelks do not have to move to obtain oxygen but can retrieve it solely through their siphon. Diffusion occurs past the gills of Whelks when the oxygen molecules from are transferred to the blood. When oxygen from the water is taken in, sent to the blood, and then transferred back out of the body as carbon dioxide, gases are exchanged. Whelks are warm/blooded and have to supply their own body heat. Whelks get energy from the food that they eat. After they receive nutrition, ATP transports chemical energy that is made in the cells to the metabolism. ATP (Adenosine triphosphate) is made up of 3 phosphates. It creates energy when one of the phosphates are broken and it turns to ADP.
Sources:
http://reefkeeping.com/issues/2005-11/rs/index.php http://peer.tamu.edu/curriculum_modules/water_quality/module_3/index.htm
http://molluscs.at/gastropoda/index.html?/gastropoda/morphology/respiration.html
http://en.wikipedia.org/wiki/Respiratory_system_of_gastropods
http://people.eku.edu/ritchisong/301notes6.htm
http://reefkeeping.com/issues/2005-11/rs/index.php http://peer.tamu.edu/curriculum_modules/water_quality/module_3/index.htm
http://molluscs.at/gastropoda/index.html?/gastropoda/morphology/respiration.html
http://en.wikipedia.org/wiki/Respiratory_system_of_gastropods
http://people.eku.edu/ritchisong/301notes6.htm
Channeled Whelk Digestion
1. The Whelk starts by approaching a bivalve such as a mussel or an oyster.
2. The Whelk then waits by the bivalve until it opens up at any given point
3. As soon as it opens, the Whelk pushes its siphonal canal in between the halves to keep it open.
4. They then use their radula (teeth) to tear apart the flesh of the bivalve
5. It then immediately enters its u-shaped glands that is used as the stomach.
6. After digestion they excrete their waste through the anus and gill surfaces.
Sources:
http://www.forces-of-nature.net/topics/molluscum/How_Do_Mollusca_Get_Rid_Of_There_Waste.htm
http://www.britannica.com/EBchecked/topic/388398/mollusk/35786/The-digestive-system
http://www.applesnail.net/content/anatomy/digestion.php
http://en.wikipedia.org/wiki/Digestive_system_of_gastropods
2. The Whelk then waits by the bivalve until it opens up at any given point
3. As soon as it opens, the Whelk pushes its siphonal canal in between the halves to keep it open.
4. They then use their radula (teeth) to tear apart the flesh of the bivalve
5. It then immediately enters its u-shaped glands that is used as the stomach.
6. After digestion they excrete their waste through the anus and gill surfaces.
Sources:
http://www.forces-of-nature.net/topics/molluscum/How_Do_Mollusca_Get_Rid_Of_There_Waste.htm
http://www.britannica.com/EBchecked/topic/388398/mollusk/35786/The-digestive-system
http://www.applesnail.net/content/anatomy/digestion.php
http://en.wikipedia.org/wiki/Digestive_system_of_gastropods