To be honest i actually came up with some of these questions while doing biochem during my chem lecture, it a bad habit but oh well now i know where my preference is. So here are my very simple questions 🙂
Btw, #10 is actually a question that I’m unsure about since i have read that it is, but in the glycolytic pathway diagram, no ATP is seen entering/leaving
1) Which of the options contain ALL of the enzymes which catalyse the irreversible reactions of glycolysis?
a. Phosphoglucose isomerase, aldolase, pyruvate kinase
b. Hexokinase,phosphoglycerate kinase, enolase
c. Phosphofructo kinase, Phosphoglycerate mutase, Pyruvate Kinase
d. Hexokinase, Phosphofructo kinase, Pyruvate Kinase
2) Why is the conversion of NAD+ -> NADH + H important?
a. To remove excess H ions from the system as it leads to acidity increase in cells
b. Picks up electrons removed from glycolysis and its NADH form makes up the electron transport chain
c. It acts as a reducing agent in the conversion of Glyceraldehyde-3-Phosphate to n1-3 Bisphosphoglycerate
d. None of the above
3) Which of the following steps does not take place in the 10 steps of glycolysis?
a. NAD+ + 2H → NADH + H+
b. ADP + Pi → ATP
c. ATP → ADP
d. Dihydroxyacetonephosphate ↔ GLyceraldehyde-3-phosphate
4) Why are the three irreversible reactions…….IRREVERSIBLE?
a. The ∆G value for the reactions are too high
b. The ∆G value for the reactions are too low
c. Products which are formed from the reactions are too unstable
d. Reactants disrupt the glycolitic pathway if kept in their initial state for long periods
5) What is the process by which ATP is formed?
a. Condensation
b. Phosphorylation
c. Oxidation
d. None of the above
6) Which is the process by which NADH is formed?
a. Oxidation
b. Reduction
c. Condensation
d. All of the above
7) Enzymes for Glycolysis are located in the mitochondria of all cells.
a. True
b. False
8) Any 6-Carbon sugar can enter the glycolytic pathway?
a. True
b. False
9) The Kinase enzymes in glycolysis involves the use of ATP to add a phosphate group to the substrate and can also remove a phosphate group from such a substrate.
a. True
b. False
10) The step which involves the enzyme Glyceraldehyde-3-Dehydrogenase can be reffered to as a major energy generating step.
a. True
b. False
biochemnewb 