cellular respiration Flashcards
respiration
the process by which cells convert chemical energy from nutrients like glucose into usable energy form (ATP) by breaking down these molecules in the presence of oxygen, releasing carbon dioxide and water as waste products
fermentation
partial degradation of sugar that occurs without oxygen
net gain energy produced by glycolysis
2 ATP
glycolysis
occurs in cytoplasm in major 2 phases: energy investment and energy payoff phase
pyruvate is oxidized to? and occurs at? and release CO2
Acetyl Coenzyme, Occurs in Matrix of mitochondria
the starting molecule in citric acid cycle is
oxaloacetate
citric acid cycle produces:
ATP, NADH, FADH, CO2
alcohol fermentation release CO2 : true or false
true: 2 step reaction: first produces CO2 and second produces NAD+ and ethanol
oxygen is needed in your cells in which step of cellular respiration?
last step, Oxidative phosphorylation, occurs in 2 steps: electron transport chain and chemiososis
inputs of glycolysis
glucose, 2 ATP, 2 NAD+
lactate acid fermentation releases CO2: T or F
false, one step process where pyruvate is directly reduced to lactate.
alcohol fermentation is used for
brewing, winemaking, and baking
lactic acid fermentation is used for
cheese and yogurt production
output of glycolysis
4 ATP, 2 pyruvate and 2 NADH