BioChem C785 - WGU - Module 4 - all
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A+| Updated & Verified | 2024
A 2-year old boy found to have an autosomal recessive glycogen storage disease that prevents him from
being able to fully metabolize glucose. On examination, he has an enlarged liver and bulky appearing
muscles. Biopsy of both the liver and the muscles shoes markedly increased amounts of glycogen
compared to normal - What is true? - ✔✔Since glucose can be partially but not fully metabolized, there
is an increased concentration of the intermediate compounds and this causes a shift in enzymatic
reactions, favoring the production of glycogen
Sucrose is a disaccharide consisting of one molecule of glucose bound to one molecule of fructose.
When you put sucrose in your tea, how is that sucrose utilized by your body for making energy? (ATP) -
✔✔sucrose is broken down into its constituent monosaccharides for absorption, these can then be
metabolized via glycolysis and the citric acid cycle
Which of the following directly provides the energy necessary for the conversation of ADP + P to ATP by
ATP synthase? - ✔✔proton moving down a concentration gradient from the intermembrane space to
the mitochondrial matrix
If a patient is healthy and has a normal oxygen concentration in her blood, approximately how many
ATP are produced for every molecule of glucose that is aerobically metabolized? - ✔✔30.
2 ATP are formed in glycolysis via substrate level phosphorylation.
2 ATP are formed in the citric acid cycle via substrate level phosphorylation
, 26 ATP are formed through oxidative phosphorylation in the electron transport chain for a total of about
30 ATP from one glucose molecule that undergoes aerobic metabolism
What process takes place in the inner membrane of the mitochondria? - ✔✔electron transport chain
While barbiturates are potent inhibitors of Complex I in the electron transport chain, they do not
completely block electron transport because: - ✔✔FADH2 donates electrons to complex II
Where is energy stores in an ATP molecule? - ✔✔in the bonds between the phosphate groups
A defect in an enzyme in the citric acid cycle causes the cycle to stop functioning. What are possible
consequences? - ✔✔decreased levels of ATP
What could result in better outcomes for type 2 diabetes? - ✔✔an increased number of
GluT4 transports in the cell membrane
Emma was prescribed metformin which is used to control blood glucose levels. One direct effect of
metformin is inhibition of the gluconeogenesis pathway in the liver - ✔✔True
Emma has an A1C level of 7.0% in her blood. A1C is a form of: - ✔✔hemoglobin
Catabolism is the breakdown of larger molecules, whereas anabolism is the synthesis of new molecules.
Which of these processes result in the generation of ATP? - ✔✔catabolism
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