Cellular Respiration Term Paper

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Cellular Respiration

Give the overall general reaction for cellular respiration. State what eukaryotic cell organelle is involved.

Cellular respiration is the process by which cells convert biochemical energy from nutrients into adenosine triphosphate (ATP). In general, sugar is burned off, or oxidized, into CO2 and H2O. The overall formula is C6H12O6 + 6O2 -> 6CO2 + 6H2O + ~38 ATP (heat). Mitochondria are the eukaryotic cell organelle involved in this process. It is considered the power center of the cell.

Define homoeothermic and endothermic.

Simply stated, homoeothermic refers to a warm-blooded animal. Homoeothermic animals are capable of regulating their own body temperatures internally and independent of their surroundings. Endotherms are similar in that they are also capable of maintaining a sufficient internal core body temperature, regardless of external conditions. Most (not all) homoeothermic animals are also endotherms and use metabolic heat production to keep warm.

What effect did lowering the temperature have on the mouse's oxygen consumption? What is the effect on cellular respiration? Is this result what you would expect? The experiment revealed that whether the temperature was 24 C. Or 17 C. The mouse's oxygen consumption remained the same (15ml).

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One would normally expect to see a slight increase in oxygen consumption as the temperature dropped. Mice, like other homoeothermic animals, use metabolic processes to increase heat production and stay warm under cooler conditions. This increases the rate of cellular respiration. Homoeothermic animals have automatic physiological reactions to external conditions to maintain core body temperatures.

If you used a poikilothermic animal, such as a frog, for your experiment, what would you have expected to happen to the respiration rate when the environment's temperature dropped? Poikilothermic animals are mostly cold-blooded animals and unable to maintain constant body temperatures. If the temperature of its general surroundings drops, so does a poikilothermic animal's rate of respiration. These animals do not have to ability to keep their body temperatures constant. Their body temperatures differ in accordance with the temperature of their surroundings.

How should activity level affect oxygen consumption?

Oxygen is critical in producing the energy needed….....

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