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_______________________ is the first step in cellular respiration that begins releasing energy stored in glucose. A. Alcoholic fermentation B. Lactic acid fermentation C. Glycolysis D. Electron transport chain The carriers for energy and high energy electrons during GLYCOLYSIS are ________. A. ATP B. NADH C. FADH 2 D. NADPH If oxygen is NOT present, glycolysis is followed by _____________________ A. Krebs cycle B. electron transport chain C. fermentation Name the 3 carbon molecule produced when glucose is broken in half during glycolysis. A. pyruvic acid B. lactic acid C. Acetyl-CoA D. citric acid Since fermentation does not require oxygen it is said to be __________________. A. aerobic B. anaerobic Which high energy electron carrier is regenerated during fermentation that allows cells to continue to make ATP using glycolysis? A. NAD+ B. NADPH C. ATP D. ADP How many ATP molecules are added to get glycolysis started? _________ Since glycolysis produces 4 ATP molecules, this results in a NET GAIN of _____ ATP’s MATCH THE LETTER IN THE DIAGRAM WITH THE LABEL: (You can use them MORE THAN ONCE) ______ MATRIX ______ INTERMEMBRANE SPACE ______ CYTOPLASM ______ OUTER MEMBRANE ______ INNER MEMBRANE (CRISTAE)
______ Place GLYCOLYSIS happens
Write the complete overall chemical equation for cellular respiration using chemical symbols instead of words: ____________ + _______________ → ________________ + _________________ + ________________ Compare this reaction to the one you learned about last chapter for PHOTOSYNTHSIS (6 H 2 O + 6 CO 2 + light energy → C 6 H 12 O 6 + 6 O 2 ) How are these equations related?
Write in words the equations for the two kind of fermentation: Alcoholic fermentation _________________+_______________ →_________________+_________________ +______________ Lactic acid fermentation ___________________+_________________ →___________________+_________________
Tell the kind of fermentation used in each example: Yeast use this to make bread dough rise ________________________ Your muscle cells use this during rapid exercise when oxygen is low ________________ Bacteria and yeast use this to make beer and wine _____________________ Bacteria use this to make cheese, yogurt, and sour cream ___________________ If alcoholic fermentation is used to make bread dough rise, how come you don’t become intoxicated when you eat the bread?
MULTIPLE CHOICE: Circle the answer or answers that best complete the statement or answer the question. (THERE MAY BE MORE THAN ONE RIGHT ANSWER.) Which of the following shows the correct sequence during cellular respiration? A. Electron transport chain → glycolysis → Krebs cycle B. Glycolysis → Electron transport chain → Krebs cycle C. Krebs cycle → Electron transport chain → glycolysis D. Glycolysis → Krebs cycle → Electron transport chain Where do the carbon atoms in pyruvic acid end up following the Krebs cycle? A. They enter the electron transport chain and make ATP B. They become part of a carbon dioxide molecule and end up in the atmosphere C. They join with citric acid to make Acetyl-CoA D. They build up in the intermembrane space Because cellular respiration requires oxygen it is said to be _________________ A. aerobic
Name the 6 carbon molecule that forms when Acetyl-CoA joins its 2 carbons to a 4 carbon molecule during the Krebs cycle. A. ATP B. pyruvic acid C. glucose D. citric acid
MATCH THE LETTER IN THE DIAGRAM WITH THE LABEL: (You can use them MORE THAN ONCE or NOT AT ALL) ______ Place where glycolysis happens ______ Place where enzymes for the Electron Transport Chain are located ______ Place that fills with H+^ ions as electrons move down the Electron transport chain ______ Place where ADP and P join to make ATP ______ Place where oxygen acts as the final electron acceptor to make water
Explain why FADH 2 produces fewer ATP molecules than NADH when it passes its electrons down the Electron transport chain. Explain where the enzymes for Electron Transport are located in bacteria (prokaryotes) if they don’t have internal membranes.
Name of Cycle? Where Occurs? What is made?