Bio Muscle contraction and cell respiration quiz
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22 Terms
the oxygen consumed during cellular respiration is directly involved in which process or event?
accepting electrons at the end of the electron transport chain
in liver cells the inner mitochondrial membranes are about 5x the area of the outer mitochondrial membranes, and about 17x that of the cell’s plasma membrane. what purpose must this serve?
increase the surface for electron transport chains
what metabolic pathway is common to both cellular respiration and fermentation
glycolysis
you have a friend who lost 15 pounds on a low carb diet. how did the mass leave his body?
it was released as carbon dioxide and water
glycolysis is thought to be one of the most ancient of metabolic processes. provide at least three supporting evidences
does not need oxygen, occurs in cytosol, done by all cells
where does glycolysis take place
the cytosol
where does pyruvate oxidation and krebs cycle take place
mitochondrial matrix
where does the electron transport chain take place
inner mitochondrial membrane
what are the reactants for glyoclysis
glucose and 2 atp
what are the reactants for pyruvate oxidation
2 pyruvate
what are the reactants for krebs cycle
2 acetyl coa
what are the reactants for the electron transport chain
10 nadh/2 fadh, 6 o2
what are the products of glycolysis
2 nadh, 4 atp, 2 pyruvate
what are the products of pyruvate oxidation
2 co2, 2 nadh, 2 acetyl coa
what are the products of krebs cycle
4 co2, 6 nadh, 2 fadh2, 2 atp
what are the products of the electron transport chain
6 h2o, 26-28 atp
during lactic acid fermentation which of the following is false?
an oxygen debt builds
there is a net gain of 2 atp molecules
lactate accumulates in the muscle tissue
pyruvate is oxidized to lactate
nadh is oxidized by pyruvate
5
most of the atp creation during respiration occurs as a result of what driving force?
protons moving down a concentration gradient
what is the name of the enzyme located in the inner mitochondrial membrane that is directly responsible for synthesizing atp?
atp synthase
what molecules supply the ETC with electrons
nadh
what is the final acceptor molecule for electrons in aerobic respiration
o2
what is the ETC composed of
a series of special h+ protein pumps and atp synthase
Note 
Flashcards (22)