Biology 2601A/B Lecture Notes - Lecture 5: Glycolysis, Citric Acid Cycle, Oxidative Phosphorylation
10 Dec 2017
School
Department
Course
Professor
Document Summary
In plants: autotrophic: can produce their own energy through photosynthesis. Glycolysis: occurs in both plants and animals, process, start off with a simple sugar - sucrose, sucrose is broken down into glucose, glucose enters glycolysis. In the early parts of glycolysis, you have to invest atp to phosphorylate glucose: breakdown into two 3 carbon molecules - g3p, g3p proceeds through glycolysis and each one yields 2 atp. Invest: 2 atp, yield: 4 atp: net result: 2 atp and 2 pyruvates, and 2 nadh, pyruvate is the important yield. Fate of pyruvate: depends of state and type of organism, plants and animals, aerobic: (most of the time) shuttled to mitochondrion for oxidative phosphorylation, anaerobic: fermentation, not enough oxygen around, pyruvate isn"t fully metabolized. Pyruvate is converted by lactate dehydrogenase into lactate. Lactate is formed and builds up in your muscles or is exported into your blood: this is a short for(cid:373) produ(cid:272)tio(cid:374) of e(cid:374)erg(cid:455), (cid:449)o(cid:374)"t (cid:449)ork lo(cid:374)g ter(cid:373)
