BIOL 1030 Lecture Notes - Lecture 11: Cellular Respiration, Gastrointestinal Tract, Coprophagia

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Scott Kevin

Document Summary

This was induced by the habitat that tapeworms live in (being the large intestine due to their parasitic nature): they absorb the already digested material across their integument (skin). They are primarily sacs of reproductive organs. : while we have microvilli on our intestinal epithelia to maximize surface area. It works best over short distances and it occurs rather slowly. The speed at which diffusion occurs decreases exponentially with the increase in distance. Diffusion generally only works over a maximum of 1mm. Thus, we exhale a lot of oxygen back into the surrounding atmosphere: water, however, has far less oxygen than air. This is due to oxygen"s solubility in water. At the surface of the water, oxygen dissolves into the water (a very small amount). Red gill colour comes from the blood present that is ready to pick up the oxygen efficiently: another specific organ is the lungs. These occur in terrestrial animals and are invaginations.