Biochemistry Quiz - B

What is the primary energy source for the body?

• Carbohydrates

• Nucleic acids

• Proteins

• Lipids

Which bond type connects amino acids in proteins?

• Glycosidic bond

• Hydrogen bond

• Peptide bond

• Ester bond

What is the process of breaking down glucose into pyruvate called?

• Glycogenesis

• Glycolysis

• Gluconeogenesis

• Krebs cycle

Which metabolic pathway synthesizes glucose from non-carbohydrate sources?

• Glycolysis

• Beta-oxidation

• Gluconeogenesis

• Krebs cycle

What is the end product of glycolysis?

• Glucose

• Pyruvate

• Lactic acid

• Acetyl-CoA

Which of the following is a function of proteins?

• Energy storage

• All of the above

• Hormonal regulation

• Structural support

What is the main purpose of the Krebs cycle?

• Synthesize proteins

• Store energy

• Generate high-energy molecules

• Produce glucose

Which enzyme is responsible for converting glucose to glucose-6-phosphate?

• Phosphofructokinase

• Hexokinase

• Aldolase

• GAPDH

What is the role of insulin in metabolism?

• Promotes gluconeogenesis

• Inhibits glycolysis

• Stimulates storage pathways

• Stimulates energy-releasing pathways

Which of the following is NOT a product / reactant of anaerobic respiration?

• Glucose

• Oxygen

• ATP

• Lactic acid