Glycolysis

Question 1

how many stages and rxns

Answer 1

2 stage of 9 consecutive rxns

Question 2

stage 1

Answer 2

2 ATP donates phospahtes, the 6-carbon sugar is split into 2 3-carbon glyceraldehyde-3-phosphate

Question 3

stage 2

Answer 3

2 G3P are oxidized producing 2 NADH, this is a redox rxn. 4ATP are generated by SL(P). end product is pyruvate

Question 4

other sugars can be catabolized by glycolysis such as

Answer 4

monosaccharides or disaccharides

Question 5

high is lactose catabolized

Answer 5

lactose catabolized by LacZ to glucose and galactose

Question 6

high is sucrose catabolized

Answer 6

sucrose catabolized by sucrase to glucose and fructose

Question 7

ATP + glucose catabolized to

Answer 7

glucose6P

Question 8

fructose and ATP catabolized to

Answer 8

fructose6P

Question 9

galactose catbolized by ATP, UTP to

Answer 9

glucose6P

Question 10

net for glycolysis

Answer 10

gluocse/fructose +2ADP +2NAD+ = 2 pyruvate +2ATP +2NADH. one less ATP produced per galactose. no carbons lost

Question 11

Anabolism

Answer 11

glycolysis is amphibolic. also provides the precursor metabolite for synthesis of polysaccharides, amino sugars like glucosamine, glycerol and aa