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Biochemistry Fundamentals

Biochemistry

A collection of medium-difficulty, fact-based multiple-choice questions covering core biochemistry concepts.

biochemistry molecular biology enzymes metabolism nucleic acids proteins

15 Questions Medium Ages 16+ Aug 16, 2026

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About this Study Set

This study set covers Biochemistry through 15 practice questions. A collection of medium-difficulty, fact-based multiple-choice questions covering core biochemistry concepts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 15 questions from the Biochemistry Fundamentals study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which of the following is the primary energy currency of the cell?

A Glucose
B ATP
C NAD+
D DNA

2 What type of bond links amino acids together in a polypeptide chain?

A Glycosidic bond
B Phosphodiester bond
C Peptide bond
D Hydrogen bond

3 Which organelle is responsible for cellular respiration and ATP production?

A Nucleus
B Ribosome
C Endoplasmic reticulum
D Mitochondrion

4 The building blocks of nucleic acids (DNA and RNA) are called:

A Amino acids
B Monosaccharides
C Nucleotides
D Fatty acids

5 Enzymes are biological catalysts, and their activity can be regulated by:

A Increasing temperature indefinitely
B Changing the pH drastically
C Competitive and non-competitive inhibition
D Removing all substrate

6 What is the main function of DNA?

A Catalyzing metabolic reactions
B Storing genetic information
C Transporting oxygen
D Providing structural support

7 Lipids are a diverse group of molecules that are generally:

A Hydrophilic
B Soluble in water
C Hydrophobic
D Charged

8 Which process involves the synthesis of RNA from a DNA template?

A Replication
B Translation
C Transcription
D Reverse transcription

9 The process by which cells break down glucose to produce ATP in the absence of oxygen is called:

A Aerobic respiration
B Photosynthesis
C Fermentation
D Glycogenesis

10 What is the primary structural component of cell membranes?

A Triglycerides
B Phospholipids
C Steroids
D Waxes

11 Which molecule carries amino acids to the ribosome during protein synthesis?

A mRNA
B rRNA
C tRNA
D snRNA

12 The three-dimensional shape of a protein is crucial for its:

A Solubility in water
B Charge
C Function
D Molecular weight

13 What is the process of protein synthesis called?

A Transcription
B Replication
C Translation
D Duplication

14 Which type of molecule acts as an enzyme, catalyzing biochemical reactions?

A Carbohydrate
B Lipid
C Nucleic acid
D Protein

15 The complete set of genetic material in an organism is known as its:

A Genome
B Proteome
C Transcriptome
D Metabolome

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