BIOL 1202 : Biology 1202 Final Exam
Document Summary
Functions of vertebrate circulatory system: heart pump blood throughout the body and to the lungs to keep fluid moving, arteries, veins, capillaries, etc. Oxygenated blood is then pumped to all living cells in the body including heart and lungs for oxygen supply to make atp. Oxygenated is blood is pumped from the lungs back to the heart. Oxygen, nutrients, atp in mitochondria, waste products (co2, ammonia) Done by mitochondria all eukaryotic cells (with few exceptions) have mitochondria. Exhaling gets rid of co2 as a waste. Atp (energy) generated during this process know name of this process proton gradient. Requires large, most surface area lining the inside of the lungs for oxygen to dissolve then move by diffusion into the bloodstream. (o2 is not actively transported ever. ) Gases dissolve in moisture easier, then exchange diffusion. (o2 can move through a. Exchange of oxygen and co2. phospholipid bilayer because the molecule is nonpolar. : earthworm dies when it dries out because it suffocates.
