Energy Compounds and Metabolism Concepts

The video tutorial discusses energy metabolism in cells, focusing on energy-rich compounds and their roles. It explains the types of energy compounds, such as pyrophosphates and phosphoenolpyruvate, and their biochemical significance. The session concludes with a summary of how these compounds provide energy for cellular functions.

What are the two main components of metabolism?

• Glycolysis and Fermentation

• Catabolism and Anabolism

• Photosynthesis and Respiration

• Oxidation and Reduction

What is Gibbs free energy represented as?

• Negative value

• Zero value

• Neutral value

• Positive value

Which molecule is an example of a pyrophosphate?

• Acetyl CoA

• Phosphocreatine

• Phosphoenolpyruvate

• Adenosine triphosphate (ATP)

Which nitrogenous base is used in gluconeogenesis?

• CTP

• UTP

• GTP

• ATP

What type of bond is found in enol phosphates?

• Thioester bond

• Phosphoenol bond

• Phosphodiester bond

• Phosphoanhydride bond

Which compound is an example of an acyl phosphate?

• 1,3-bisphosphoglycerate

• Phosphoenolpyruvate

• Adenosine triphosphate

• Phosphocreatine

What is the energy yield of phosphoenolpyruvate?

• 61 kJ/mol

• 41 kJ/mol

• 49 kJ/mol

• 30.5 kJ/mol

Which compound has the highest energy yield among those discussed?

• Acetyl CoA

• Phosphoenolpyruvate

• ATP

• Phosphocreatine

What is the role of phosphocreatine in muscle cells?

• Inhibits glycolysis

• Serves as a reserve energy source

• Facilitates protein synthesis

• Acts as a long-term energy storage

Which compound is linked with a thioester bond?

• Adenosine triphosphate

• Acetyl CoA

• 1,3-bisphosphoglycerate

• Phosphoenolpyruvate