Test your knowledge with 25 MCQs on Biochemistry

Q1. Which of the following is a function of the nervous system?

To transport nutrients throughout the body

To remove waste products from the body

To coordinate body functions and respond to stimuli

To produce insulin

Q2. Which of the following is a function of the liver?

To break down glycogen

To synthesize glucose

To store glucose

To produce insulin

Q3. Which of the following is NOT a type of RNA?

Ribosomal RNA

Transfer RNA

Mitochondrial RNA

Messenger RNA

Q4. Which of the following is a monosaccharide?

Sucrose

Cellulose

Starch

Glucose

Q5. Which of the following is a component of the plasma membrane?

Sucrose

Cholesterol

Glycogen

Starch

Q6. Which of the following is a function of the immune system?

To defend the body against pathogens

To regulate body temperature

To produce insulin

To remove waste products from the body

Q7. What is the function of RNA in the body?

To catalyze chemical reactions

To assist in protein synthesis

To store genetic information

To transport amino acids

Q8. Which of the following is NOT a function of carbohydrates in the body?

To transport oxygen

To provide energy

To provide structural support

To store energy

Q9. Which of the following is the primary component of cell membranes?

Proteins

Lipids

Nucleic acids

Carbohydrates

Q10. Which of the following is NOT a nucleotide base found in DNA?

Uracil

Cytosine

Guanine

Adenine

Q11. What is the function of insulin in the body?

To break down glucose in the bloodstream

To transport glucose into cells

To release glucose from the liver

To store glucose in the liver

Q12. What is the function of the citric acid cycle (also known as the Krebs cycle) in the body?

To break down glucose

To produce ATP

To synthesize glucose

To transport glucose into cells

Q13. What is the function of hemoglobin in the body?

To transport oxygen

To catalyze chemical reactions

To provide structural support

To store energy

Q14. Which of the following is a function of the kidneys?

To produce insulin

To filter waste products from the blood

To produce red blood cells

To regulate body temperature

Q15. What is the primary function of enzymes in the body?

To catalyze chemical reactions

To provide structural support

To transport molecules

To store energy

Q16. What is the name of the sugar that is found in DNA?

Deoxyribose

Fructose

Glucose

Ribose

Q17. Which of the following is NOT a macromolecule found in living organisms?

Lipids

Carbohydrates

Oxygen

Proteins

Q18. Which of the following is a function of enzymes in biochemical reactions?

To decrease the rate of the reaction

To increase the activation energy required for the reaction

To act as a catalyst and speed up the reaction

To stabilize the reactants and prevent the reaction from occurring

Q19. Which of the following is a function of the circulatory system?

To regulate body temperature

To exchange gases between the body and the environment

To remove waste products from the body

To transport nutrients throughout the body

Q20. What is the function of ATP in the body?

To transport molecules

To store energy

To catalyze chemical reactions

To provide structural support

Q21. Which of the following is a function of the endocrine system?

To regulate body processes using hormones

To transport nutrients throughout the body

To produce insulin

To remove waste products from the body

Q22. Which of the following is NOT a type of lipid?

Triglycerides

Phospholipids

Steroids

Glucose

Q23. Which of the following is NOT a type of protein structure?

Secondary

Quadratic

Primary

Tertiary

Q24. What is the function of the Golgi apparatus in the cell?

To modify and package proteins

To store genetic information

To break down molecules

To produce ATP

Q25. Which of the following is a function of the respiratory system?

To remove waste products from the body

To exchange gases between the body and the environment

To transport nutrients throughout the body

To regulate body temperature

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