Introduction to Metabolism

What are the two categories into which metabolic pathways are often divided?

• Glycolysis and Krebs cycle

• Photosynthesis and Respiration

• Oxidation and Reduction

• Anabolism and Catabolism

What is the overall process through which living systems acquire and utilize the free energy they need to carry out their various functions?

• Cellular respiration

• Photosynthesis

• Glycolysis

• Metabolism

What is the measure of the tendency for an oxidized compound to gain electrons?

• Free Energy

• Oxidation State

• Standard Reduction Potentials

• Reduction Potential

Which compound is a key intermediate in metabolism, serving as a product of catabolism, precursor of anabolism, and consumed in the citric acid cycle?

• NADH

• Glucose

• Acetyl-Coenzyme A

• ATP

What is the primary function of NAD and NADP in metabolic reactions?

• Phosphoryl group transfer

• Hydrolysis

• Electron transport

• Redox cofactors

Which vitamin is a precursor to coenzymes and is associated with pellagra when deficient?

• Vitamin B3

• Vitamin B2

• Vitamin C

• Vitamin A

What is the primary function of ATP in metabolic pathways?

• To store genetic information

• To act as a structural component of cells

• To capture and release free energy

• To regulate enzyme concentration

What is the primary function of high-energy compounds such as ATP in organisms?

• To capture and release free energy

• To act as a structural component of cells

• To store genetic information

• To regulate enzyme concentration

What determines the spontaneity of processes in living organisms?

• Equilibrium Constant

• Reduction Potential

• Standard Reduction Potentials

• Free Energy

What is the primary function of NADH in metabolic reactions?

• Phosphoryl group transfer

• Hydrolysis

• Electron transport

• Redox cofactors