Formation of glucose from acetyl Co A is called- (1) Glycogenesis (2) Gluconeogenesis (3) TCA cycle (4) Glycolysis The formation of glucose from acetyl CoA is a fascinating topic in […]
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Regulation of Glycogen Phosphorylase and Glycogen Synthase by Phosphorylation: Activity Changes Explained
Following statements are made regarding glycogen phosphorylase and glycogen synthase activities in relation to their phosphorylation status: A. Phosphorylation of glycogen phosphorylase increases its activity B. Phosphorylation of glycogen phosphorylase […]
First Step in Glycogen Breakdown Releases Glucose Units as Glucose-1-Phosphate
The first step in glycogen breakdown releases glucose units as (1) glucose 6- phosphate (2) glucose 1- phosphate (3) glucose (4) glucose and glucose 6- phosphate Glycogen is the primary […]
Correct Sequence of Electron Carrier and Energy Molecule Changes in the Citric Acid Cycle
The following reactions are part of the citric acid cycle. The numbers in parenthesis indicate the number of carbon atoms in each molecule. Which of the following sequences of the […]
Major Functional Difference Between Succinyl-CoA Synthetase in Plant and Animal Mitochondria
A major functional difference between the succinyl CoA-synthetase of plant and animal cell mitochondria is that it (1) Does not produce ATP in plant cell. (2) Produce UTP in plant […]
Energy Molecule Produced by Succinyl-CoA Synthetase in Plant Mitochondria: ATP or GTP?
In plant mitochondria, succinyl CoA synthetase when catalyze conversation of succinyl coA to succinate also yields (1) GTP (2) ATP (3) CTP (4) UTP Succinyl-CoA synthetase (also called succinate-CoA ligase) […]
Identifying TCA Cycle Intermediates: Names of Molecules A, B, C, and D
Indicate the names of the following molecules (1) A= isocitrate, B = α-ketoglutarate, C = oxaloacetate, D = citrate (2) A= citrate, B = isocitrate, C = α -ketoglutarate, D […]
Malonate as a Competitive Inhibitor of the TCA Cycle: Structural Similarity Explained
Malonate is competitive inhibitor of TCA cycle and structurally similar to (1) Succinate (2) Malate (3) Oxaloacetate (4) α-keto glutarate Malonate is a well-known competitive inhibitor of the tricarboxylic acid […]
Identifying the False Statement About the TCA Cycle: Location, Function, and Products Explained
Which is not true about TCA cycle (1) takes place in mitochondrial matrix of eukaryotes (2) is amphibolic pathway (3) is linked to glycolysis via pyruvate (4) there is formation […]
Energy-Rich Molecules Produced in the TCA Cycle: NADH, FADH2, and GTP Yield Explained
The energy-rich fuel molecules produced in the TCA cycle are (1) 2 GTP, 2 NADH and 1 F ADH2 (2) 1 GTP, 2 NADH and 2 FADH2 (3) 1 GTP, […]


