KPE161H1 Lecture Notes - Lecture 2: Catabolism, Homeostasis, Only Time
9 Mar 2019
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2 periodization, energy, and sleep: humans have limited energy and time, all three are related, periodization: means to allocate energy, without energy, you cannot. Perform needed to stress a system. Repair damage, replace lost nutrients like cho in a cell. Build new tissue, enzymes, etc. (growth: sleep (or rest) in general is important because that is when 2 and 3 from above occur muscles are not working, energy can be devoted to repair/building. Energy: body uses atp as its source of energy, atp stores energy can be used to power cellular functions, atp is heavy, not a lot can be stored at once, energy is between phosphate groups. Cell needs energy = phosphate group breaks off, energy released. Energetic theory: limited amount of energy (atp) available at any given time, normally, energy used for cellular repair and homeostasis. Cells maintain/replace used proteins for proper functioning. Proteins made of many amino acids joined by peptide bonds.
