Cellular Respiration Chapter 6 PDF

Summary

This document explains cellular respiration, including aerobic and anaerobic processes, using diagrams and texts. It details ATP production, the role of oxygen, and the different stages involved. It also covers fermentation in detail from a biological perspective.

Full Transcript

- ` - Both Humans and Plants go through Cellular Respiration - Autotrophs take the sun's energy and turn into glucose/energy - Consumers eat this glucose for energy - Sunlight into Glucose is photosynthesis - Glucose to ATP is cellular respiration - ATP gives us energy - This is the...

- ` - Both Humans and Plants go through Cellular Respiration - Autotrophs take the sun's energy and turn into glucose/energy - Consumers eat this glucose for energy - Sunlight into Glucose is photosynthesis - Glucose to ATP is cellular respiration - ATP gives us energy - This is the Cellular Respiration equation Glucose + Oxygen → ATP (energy) + Carbon Dioxide + Water - C6H12O6 + 6O2 →ATP + 6CO2 + 6H2O - - The reactants for cellular respiration are the products of photosynthesis and Vice Versa - ATP Production can either be : Aerobic (with oxygen) and anaerobic (without oxygen) both can make ATP but aerobic is more useful - Aerobic uses oxygen, happens in mitochondria, complete breakdown of glucose, produces around 36 ATP, very efficient but equally slow. - Anaerobic does not use oxygen. Is completed in cytoplasm, glucose is only partially broken down, only makes 2 ATP but is very fast. Also known as fermentation - Cristae is the inner folded membrane - Matrix is the liquid inside the cristae - Intermembrane space is the space between the outer membrane of the mitochondria and the cristae - Steps of aerobic respiration= Glycolysis as the prep → Krebs cycle→and finally electron transport chain - Anaerobic respiration goes from glycolysis to fermentation - What is glycolysis? It happens in the cytoplasm where glucose goes in and 2 ATP, electrons, and broken down glucose is release - 1 glucose makes 2 pyruvate (broken down glucose) which then enter the Krebs Cycle with a little ATP being made in the process - Electrons go to the ETC (electron Transport chain) - Glycolysis is anaerobic (no oxygen) - This is the krebs cycle. Happens in mitochondria takes in 2 pyruvate(3 carbon) which will be turned into acetyl COA, The rest of the glucose is broken down and the extracted electrons enter the ETC a 2ATP is made. The electron carriers consist of NADH and FADH2 - This is the ETC (electron transport chain). It happens in the mitochondria and takes in electrons from glucose and 02 and releases 32-34 ATP and H20 - In the ETC energy is transferred to a chain of proteins in the inner membrane of the mitochondria. The Proteins use their energy to pump hydrogen ions against the membrane. ATP is created and water is formed. - ETC is aerobic respiration. - Break Down of Pyruvate- The 2 pyruvate made in glycolysis enter the mitochondria and are turned into acytal COA in the mitochondrial matrix. - We also make 2 NADH which are electron carries (6 are needed for a successful transport chain - Each pyruvate molecule makes 1 Acetyl CoA 1 CO2 and one NADH - Since there are 2 Pyruvates made each one of those products is times by 2 - THIS IS NOT A STEP IT IS ONLY A SIDESTEP AND NOT A WHOLE STEP - In the kreps cycle we release 2 CO2, 3 NADH, 1 FADH, 1 ATP - Since the krebs cycle is a ferris wheel (happens 2 time) our real products are doubled the ones we just noticed-0 - Fermentation - Fermentation is a process that occurs in the cytoplasm that allows energy to be released from food molecules in the absence of oxygen. - Only goes from Glycolysis to fermentation - 2 Pathways from glycolysis , With oxygen we go to 3 step CR, Without O2 we go to fermentation - Latic acid fermentatio- animals and some bacteria. - Alcohilic fermentationB- bacteria and yeast - Lactic acid is the body trying to recover as you take in oxygen, Glucose→Pyruvat→Lactic acid - Alcholic fermentatio is glucose→pyrucate→Ethanol and Carbon dioxide - Lactic acid is done by animals and some bacteiria in the cytosplasm where glycolysis happens and pyruvate is broken down to lactic acid, this use pyeruvate and NADH and release 2 ATP and lactic acid is also anarobic - Alchol fermentation hapens to yeast and bacteria in the cytiolasm using pyruvate witch is then broken down into ethanol needing pyruvate and NADH ti happen we also get CO2, 2 ATP, and ethanol also anaerobic - Yogurt, sauerkraut, kimchi, chees are made through lactic acid fermentation - Breads wine and beeer are made throu alcoholic fermentatation - - That blue thing at the end is called ATP Synthase -

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