BIOL 1500 Chapter Notes - Chapter 4: Cellular Respiration, Calorie, Adenosine Diphosphate
Document Summary
Physical law energy conversions vital for life apply transformations. Law of energy conservation energy cannot be created of destroyed. Living cells constantly convert energy from one form to another. All energy transformations are inefficient because every reaction loses some energy to the surroundings as heat. 4. 2 networks of chemical reactions sustain life: metabolism - encompasses all of these chemical reactions in cells, including those that build new molecules and those that break down existing ones. Chemical reactions absorb or release energy: metabolic reactions into two categories, those that require energy input. 4. 3 atp is cellular energy currency: atp (adenosine triphosphate) - they care covalent bonds that temporarily store the release energy (after reduction and oxidation, muscles and brain contain most mitochondria. Energy in atp is critical to the life of a cell: type of nucleotide, base adenine, five carbon sugar, three phosphate (which makes molecule unstable because each phosphate repels one another, break through hydrolysis reaction.
