2 Respiration What are two types of fermentation? Alcoholic fermentation Lactic acid fermentation
3 Alcoholic Fermentation Pyruvic acid + NADH --> alcohol + CO2 +NAD+What process produces the NADH?Is this process aerobic or anaerobic?
4 Lactic Acid Fermentation Pyruvic acid + NADH --> lactic acid + NAD+Where do the pyruvates come from?Does this fermentation produce CO2?Where is the NAD+ going to be reused?
5 Lactic acid is produced in your muscles during rapid exercise when the body cannot supply enough oxygen.You produce lactic acid during short intense work like sprinting because you can not supply oxygen fast enough to the muscle cells.
6 Aerobic respirationWhat is the correct sequence of events in this process?Glycolysis --> Krebs cycle --> Electron transport chain
7 C6H12O6 + 6O2 --> 6CO2 + 6H20 + ENERGY What are the reactants in cellular respiration?food (glucose) and oxygenSome of the energy released is captured as ATP and some is lost as heat.How many ATP’s are recovered from one glucose molecule?36What are the products of respiration?carbon dioxide and water and energy
8 Glycolysis 1) Where does it occur? cytoplasm 2) What is the starting molecule?glucose3) What is needed to get the process started?an energy input = 2 ATP’s
9 Glycolysis What happens if oxygen is not present during glycolysis? the pyruvates will be consumed by fermentation
10 Electron carriers? NADH FADH2 During what processes are these compounds produced?NADH - during glycolysis and Krebs cycleFADH2 - during Krebs cycle
11 Aerobic vs Anaerobic What does aerobic mean? process that requires oxygenDoes glycolysis require oxygen?noDoes the Krebs cycle require oxygen?yes
12 Krebs Cycle What product from gylcolysis begins the Krebs cycle? Pyruvic acidWhere does this cycle take place in the cell?mitochondria
13 Krebs cycle What does the Krebs cycle produce? NADH, FADH2, CO2, and some ATPWhich of these products are important to the electron transport chain?NADH, FADH2, these are the electron carriers that allow for the production of much more ATP
15 Electron Transport Chain How do the electrons get transported to the special proteins involved?carried by carrier molecules NADH, FADH2What is the primary function of the chain?to make ATP
16 Electron Transport Chain Oxygen and water --- how is oxygen used in cellular respiration?The oxygen atoms are the final electron acceptors and then they can attach with two H+ ions to form water at the end of the transport chain
17 Which process does not release energy from glucose? GlycolysisFermentationPhotosynthesiscellular respiration
18 How are cellular respiration and photosynthesis almost opposite processes? Oxygenphotosynthesis produces itrespiration uses it to break down foodCarbon dioxiderespiration produces itphotosynthesis uses it to make glucose
19 How are cellular respiration and photosynthesis almost opposite processes? Glucosephotosynthesis manufactures itrespiration breaks it down to produce ATPWaterphotosynthesis uses it to produce sugarsrespiration produces it as a waste product while making ATP