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BIOCHEMISTRY Study Guide - Quiz Guide: Carbon Group, Glyceraldehyde 3-Phosphate, Hexokinase

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hanastudynotes
5 Nov 2022
School
University of Santo Tomas
Department
Chemistry
Course
BIOCHEMISTRY
Professor

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Document Summary

Food intake gets broken down to glucose in the cytosol but still is too big to go to the mitochondria that"s why there is glycolysis. Process = isomerization: glucose becomes a different structure. Process = usage of atp to add another phosphate on the right side (c1) Equilibrium is not met, only 1 phosphate group on the left. There must be 3 carbon group and 1 phosphate on each side. Process = splitting of 1,6 biphosphate into two (c3,c6) isomers to each. Product = dhap & g3p only the one tolerated by the body. Process = using inorganic phosphate to the adp to make it atp or what we call. Process 1 = tpd transfers h to nad. Process = need to maintain balance so we relocate the phosphate group from. Step 1: remove carbon 1 because we need to attach a coenzyme. Step 3: attaching of coenzyme a as fuel or support.

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Related Questions

Enzymes that catalyze reactions in which a molecule is phosphorylated are usually called “kinases.” Hexokinase catalyzes the phosphorylation of glucose (a “hexose,” because it is a 6-carbon sugar). Phosphofructokinase 1 (PFK-1) catalyzes the phosphorylation of phosphofructose (another name for Fructose 6-phosphate). By contrast, enzymes that remove phosphates from molecules are called “phosphatases,” and reactions in which phosphates are removed are called dephosphorylation reactions. Even if you’ve never seen it before, what molecule do you predict is dephosphorylated by glucose 6-phosphatase?

Fructose 1,6-bisphosphate

Fructose 6-phosphate

Glucose 6-phosphate

Fructose

which of the following statements regardingfructose-1,6-bisphosphate is NOT CORRECT?
a. a fructose-2,6-bisphosphate activates phosphofructokinase-1 andinhibits fructose-1,6-bisphosphate
b. fructose-1,6-bisphosphatase is phosphorylated by proteinphosphatase during a fast.
c. fructose-1,6-bisphosphatase is more active in the fasting statethan in the fed state
d. fructose-1,6-bisphosphate is the key substrate fromfructose-1,6-bisphosphatase
e. fructose-1,6-bisphosphatase becomes more activated as the cyclicAMP cascade becomes more activated

In the firs reaction of glycolysis, glucose is converted to _________. The phosphate comes from __________.


A __________ is an enzyme that transfers the terminal phosphate of _________ to a substrate. The product of this reaction is then ______________ to fructose-6-phosphate.


Fructose-6-phosphate is then phosphorylated by a second __________ reaction, giving ___________.