FREE
Biochemistry Practice Tests

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Free Biochemistry Diagnostic Tests

Take the Varsity Learning Tools free diagnostic test for Biochemistry to determine which academic concepts you understand and which ones require your ongoing attention. Each Biochemistry problem is tagged down to the core, underlying concept that is being tested. The Biochemistry diagnostic test results highlight how you performed on each area of the test. You can then utilize the results to create a personalized study plan that is based on your particular area of need.

Biochemistry Diagnostic Test 1

Questions: 40
Test Difficulty:
Average Time Spent: 31 mins

Biochemistry Diagnostic Test 2

Questions: 40
Test Difficulty:
Average Time Spent: 15 mins

Biochemistry Diagnostic Test 3

Questions: 40
Test Difficulty:
Average Time Spent: 15 mins

Biochemistry Diagnostic Test 4

Questions: 40
Test Difficulty:
Average Time Spent: 45 mins

Biochemistry Diagnostic Test 5

Questions: 40
Test Difficulty:
Average Time Spent: 23 mins

Biochemistry Diagnostic Test 6

Questions: 40
Test Difficulty:
Average Time Spent: 56 mins

Biochemistry is often a required subject for high school and college students who are interested in pursuing a degree in a scientific field. This branch of science combines biology and chemistry and involves understanding interactions, techniques, and how to solve problems. Oftentimes, mastering a complex subject like biochemistry requires more than simply attending class and completing your homework. Online biochemistry practice tests can help you by strengthening your working knowledge and skills in the subject and by exposing you to relevant study materials along the way. There are hundreds of free biochemistry practice tests available from Varsity Tutors’ Learning Tools that include biochemistry sample questions in a variety of categories. You’ll find both concept-specific tests and full-length biochemistry tests to help get you ahead of the game.

The short exercises cover topics like anabolic pathways, carbohydrate synthesis, and nucleic acid and protein synthesis. You can also test yourself on glycogenolysis, the citric acid cycle, photosynthesis, protein catabolism, enzyme kinetics, macromolecules, molecular bonds, protein structure, and many other biochemical processes that occur in our bodies every day. These biochemistry practice tests range from short exercises to longer problem sets. All of the biochemistry practice tests are designed to enhance your study plan. They integrate the same questions and topics you’ll encounter in class and on actual tests, so they are a great way to practice your skills and review biochemistry concepts.

The biochemistry sample questions are invaluable Learning Tools. They provide an in-depth review of complex topics so you can work toward a better understanding. Your score is provided instantly at the end of the test, along with many other useful metrics you can use to your advantage. Even if you got a low score, you can study the clear explanations of each answer that are provided on the feedback page. Each explanation discusses the relevant biochemistry topics and gives a full description of the method to obtain the correct response. Other useful tools include your scoring percentile, a summary, and charts comparing your performance to the scores of other test-takers on each question. It’s the same format used to score standardized tests, so the biochemistry practice tests can help you prepare for class exercises and future exams.

There’s plenty of free biochemistry study material on Varsity Tutors’ Learning Tools that can help you if you’re reviewing on your own. You can also work together with peers using the social media tools to share your biochemistry practice test scores and performance. Some students find that working in groups helps with motivation. Studying with others can also be beneficial since you can receive guidance from your peers on biochemistry concepts you’re less familiar with.

If you need to brush up on your biochemistry knowledge, the free online biochemistry practice tests from Varsity Tutors’ Learning Tools may be just what you’re looking for. The feedback provided at the end of the online biochemistry practice tests enables you to implement an individualized, time-saving study plan. By focusing on the biochemistry concepts you find most challenging, you can optimize the time that you spend on your biochemistry study.

Free Biochemistry Practice Tests

Our completely free Biochemistry practice tests are the perfect way to brush up your skills. Take one of our many Biochemistry practice tests for a run-through of commonly asked questions. You will receive incredibly detailed scoring results at the end of your Biochemistry practice test to help you identify your strengths and weaknesses. Pick one of our Biochemistry practice tests now and begin!

Practice Tests by Concept

Anabolic pathways and synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 35 secs

Carbohydrate synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 46 secs

Carbohydrate anabolism practice test

Questions: 2
Test Difficulty:
Average Time Spent: 36 secs

Regulating carbohydrate synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 32 secs

Lipid synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 49 secs

Lipid synthesis enzymes practice test

Questions: 2
Test Difficulty:
Average Time Spent: 32 secs

Lipid synthesis reactants, intermediates, and products practice test

Questions: 2
Test Difficulty:
Average Time Spent: 54 secs

Regulating lipid synthesis practice test

Questions: 1
Test Difficulty:
Average Time Spent: 38 secs

Nucleic acid synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 27 secs

Dna replication practice test

Questions: 2
Test Difficulty:
Average Time Spent: 33 secs

Regulating dna replication practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 32 secs

Regulating transcription practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 8 secs

Transcription practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 40 secs

Protein synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 50 secs

Regulating protein synthesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 33 secs

Translation practice test

Questions: 5
Test Difficulty:
Average Time Spent: 1 mins 45 secs

Biochemical signaling practice test

Questions: 2
Test Difficulty:
Average Time Spent: 48 secs

Hormones and neurotransmitters practice test

Questions: 2
Test Difficulty:
Average Time Spent: 41 secs

Other hormone pathways practice test

Questions: 2
Test Difficulty:
Average Time Spent: 37 secs

Peptide hormone pathways practice test

Questions: 3
Test Difficulty:
Average Time Spent: 58 secs

Steroid hormone pathways practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 20 secs

Synapse biochemistry practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 0 secs

Signal transduction pathways practice test

Questions: 2
Test Difficulty:
Average Time Spent: 29 secs

G protein pathway practice test

Questions: 2
Test Difficulty:
Average Time Spent: 28 secs

Integrins practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Ligand-gated ion channels practice test

Questions: 3
Test Difficulty:
Average Time Spent: 59 secs

Second messengers practice test

Questions: 3
Test Difficulty:
Average Time Spent: 42 secs

Toll-like receptors practice test

Questions: 3
Test Difficulty:
Average Time Spent: 28 secs

Tyrosine kinase pathway practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 8 secs

Catabolic pathways and metabolism practice test

Questions: 5
Test Difficulty:
Average Time Spent: 1 mins 25 secs

Carbohydrate metabolism practice test

Questions: 3
Test Difficulty:
Average Time Spent: 35 secs

Alternative pathways practice test

Questions: 2
Test Difficulty:
Average Time Spent: 49 secs

Fermentation and anaerobic respiration practice test

Questions: 1
Test Difficulty:
Average Time Spent: 17 secs

Ethanol fermentation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 13 secs

Lactic acid fermentation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 23 secs

Gluconeogenesis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 38 secs

Gluconeogenesis energetics practice test

Questions: 1
Test Difficulty:
Average Time Spent: 21 secs

Gluconeogenesis enzymes practice test

Questions: 1
Test Difficulty:
Average Time Spent: 24 secs

Gluconeogenesis regulation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Other gluconeogenesis concepts practice test

Questions: 1
Test Difficulty:
Average Time Spent: 42 secs

Reactants and products of gluconeogenesis practice test

Questions: 1
Test Difficulty:
Average Time Spent: 16 secs

Glycogenolysis practice test

Questions: 1
Test Difficulty:
Average Time Spent: 39 secs

Glycogenolysis energetics practice test

Questions: 1
Test Difficulty:
Average Time Spent: 10 secs

Glycogenolysis enzymes practice test

Questions: 1
Test Difficulty:
Average Time Spent: 30 secs

Glycogenolysis regulation practice test

Questions: 2
Test Difficulty:
Average Time Spent: 49 secs

Other glycogenolysis concepts practice test

Questions: 1
Test Difficulty:
Average Time Spent: 23 secs

Reactants and products of glycogenolysis practice test

Questions: 1
Test Difficulty:
Average Time Spent: 29 secs

Citric acid cycle practice test

Questions: 3
Test Difficulty:
Average Time Spent: 54 secs

Citric acid cycle carbohydrate intermediates practice test

Questions: 3
Test Difficulty:
Average Time Spent: 55 secs

Citric acid cycle energetics practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 10 secs

Citric acid cycle enzymes practice test

Questions: 2
Test Difficulty:
Average Time Spent: 34 secs

Citric acid cycle regulation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 38 secs

Other citric acid cycle concepts practice test

Questions: 7
Test Difficulty:
Average Time Spent: 2 mins 3 secs

Reactants and products of the citric acid cycle practice test

Questions: 3
Test Difficulty:
Average Time Spent: 1 mins 52 secs

Electron transport and oxidative phosphorylation practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 32 secs

Atp synthase practice test

Questions: 1
Test Difficulty:
Average Time Spent: 2 mins 30 secs

Electron transport chain energetics practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 57 secs

Electron transport chain proteins and complexes practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 51 secs

Nadh and fadh2 practice test

Questions: 1
Test Difficulty:
Average Time Spent: 1 mins 50 secs

Other electron transport chain concepts practice test

Questions: 2
Test Difficulty:
Average Time Spent: 3 mins

Other oxidatative phosphorylation concepts practice test

Questions: 2
Test Difficulty:
Average Time Spent: 2 mins 5 secs

Oxidative phosphorylation energetics practice test

Questions: 1
Test Difficulty:
Average Time Spent: 3 mins

Glycolysis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 53 secs

Glycolysis carbohydrate intermediates practice test

Questions: 1
Test Difficulty:
Average Time Spent: 51 secs

Glycolysis energetics practice test

Questions: 2
Test Difficulty:
Average Time Spent: 23 secs

Glycolysis enzymes practice test

Questions: 6
Test Difficulty:
Average Time Spent: 1 mins 30 secs

Glycolysis regulation practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 28 secs

Other glycolysis concepts practice test

Questions: 2
Test Difficulty:
Average Time Spent: 27 secs

Reactants and products of glycolysis practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 13 secs

Photosynthesis practice test

Questions: 4
Test Difficulty:
Average Time Spent: 3 mins

Calvin cycle practice test

Questions: 2
Test Difficulty:
Average Time Spent: 2 mins 55 secs

Calvin cycle carbohydrate intermediates practice test

Questions: 1
Test Difficulty:
Average Time Spent: 23 secs

Other calvin cycle concepts practice test

Questions: 1
Test Difficulty:
Average Time Spent: 4 mins

Light reactions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 3 mins

Light reaction energetics practice test

Questions: 1
Test Difficulty:
Average Time Spent: 17 secs

Other light reaction concepts practice test

Questions: 1
Test Difficulty:
Average Time Spent: 6 mins

Lipid catabolism practice test

Questions: 2
Test Difficulty:
Average Time Spent: 48 secs

Lipid catabolism energetics practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 14 secs

Lipid catabolism enzymes practice test

Questions: 12
Test Difficulty:
Average Time Spent: 2 mins 41 secs

Lipid catabolism intermediates practice test

Questions: 1
Test Difficulty:
Average Time Spent: 6 secs

Lipid catabolism regulation practice test

Questions: 2
Test Difficulty:
Average Time Spent: 49 secs

Other lipid catabolism concepts practice test

Questions: 1
Test Difficulty:
Average Time Spent: 7 secs

Reactants and products of lipid catabolism practice test

Questions: 2
Test Difficulty:
Average Time Spent: 22 secs

Protein catabolism practice test

Questions: 11
Test Difficulty:
Average Time Spent: 3 mins

Other protein catabolism concepts practice test

Questions: 3
Test Difficulty:
Average Time Spent: 26 secs

Protein catabolism enzymes practice test

Questions: 2
Test Difficulty:
Average Time Spent: 23 secs

Protein catabolism intermediates practice test

Questions: 1
Test Difficulty:
Average Time Spent: 15 secs

Protein catabolism regulation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 8 secs

Reactants and products of protein catabolism practice test

Questions: 4
Test Difficulty:
Average Time Spent: 51 secs

Enzyme kinetics and inhibition practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 16 secs

Enzyme kinetics and models practice test

Questions: 3
Test Difficulty:
Average Time Spent: 1 mins 18 secs

Fundamentals of enzyme kinetics practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 10 secs

Michaelis-menton equation practice test

Questions: 2
Test Difficulty:
Average Time Spent: 46 secs

Michaelis-menten graphs practice test

Questions: 1
Test Difficulty:
Average Time Spent: 27 secs

Other kinetics principles practice test

Questions: 2
Test Difficulty:
Average Time Spent: 2 hrs 24 mins

Rate-limiting step practice test

Questions: 1
Test Difficulty:
Average Time Spent: 45 secs

Vmax and km practice test

Questions: 2
Test Difficulty:
Average Time Spent: 2 hrs 6 mins

Types of inhibition practice test

Questions: 2
Test Difficulty:
Average Time Spent: 50 secs

Competitive inhibition practice test

Questions: 2
Test Difficulty:
Average Time Spent: 52 secs

Identifying type of inhibition practice test

Questions: 2
Test Difficulty:
Average Time Spent: 26 secs

Mixed inhibition practice test

Questions: 1
Test Difficulty:
Average Time Spent: 28 secs

Noncompetitive inhibition practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 20 secs

Uncompetitive inhibition practice test

Questions: 2
Test Difficulty:
Average Time Spent: 42 secs

Fundamental macromolecules and concepts practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 13 secs

Homeostasis and the biological environment practice test

Questions: 2
Test Difficulty:
Average Time Spent: 15 secs

Biological energetics practice test

Questions: 2
Test Difficulty:
Average Time Spent: 44 secs

Essential properties of carbon practice test

Questions: 1
Test Difficulty:
Average Time Spent: 6 secs

Essential properties of water practice test

Questions: 2
Test Difficulty:
Average Time Spent: 25 secs

Negative feedback practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Other homeostatic conditions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 40 secs

Ph regulation practice test

Questions: 2
Test Difficulty:
Average Time Spent: 36 secs

Thermodynamic regulation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 29 secs

Macromolecule fundamentals practice test

Questions: 13
Test Difficulty:
Average Time Spent: 3 mins

Amino acids and proteins practice test

Questions: 4
Test Difficulty:
Average Time Spent: 5 hrs 56 mins

Lipids practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 30 secs

Monosaccharides and carbohydrates practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 50 secs

Nucleic acids: dna and rna practice test

Questions: 2
Test Difficulty:
Average Time Spent: 36 secs

Molecular bonds and forces practice test

Questions: 2
Test Difficulty:
Average Time Spent: 50 secs

Covalent bonds practice test

Questions: 1
Test Difficulty:
Average Time Spent: 17 secs

Hydrogen bonds practice test

Questions: 2
Test Difficulty:
Average Time Spent: 39 secs

Hydrophobic interactions practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Other intermolecular forces practice test

Questions: 1
Test Difficulty:
Average Time Spent: 31 secs

Identifying biochemical molecules practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 54 secs

Identification by function practice test

Questions: 3
Test Difficulty:
Average Time Spent: 24 secs

Identifying specific carbohydrate functions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 44 secs

Identifying specific lipid functions practice test

Questions: 3
Test Difficulty:
Average Time Spent: 45 secs

Identifying specific nucleic acid functions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 42 secs

Identifying specific protein functions practice test

Questions: 3
Test Difficulty:
Average Time Spent: 37 secs

Identification by structure practice test

Questions: 5
Test Difficulty:
Average Time Spent: 33 secs

Identifying specific carbohydrate structures practice test

Questions: 2
Test Difficulty:
Average Time Spent: 57 secs

Identifying specific lipid structures practice test

Questions: 2
Test Difficulty:
Average Time Spent: 26 secs

Identifying specific nucleic acid structures practice test

Questions: 5
Test Difficulty:
Average Time Spent: 36 secs

Identifying specific protein structures practice test

Questions: 5
Test Difficulty:
Average Time Spent: 59 secs

Identifying monomers and dimers practice test

Questions: 3
Test Difficulty:
Average Time Spent: 34 secs

Identifying amino acids practice test

Questions: 2
Test Difficulty:
Average Time Spent: 56 secs

Identifying disaccharides practice test

Questions: 1
Test Difficulty:
Average Time Spent: 6 secs

Identifying monosaccharides practice test

Questions: 7
Test Difficulty:
Average Time Spent: 1 mins 35 secs

Identifying nitrogenous bases and derivatives practice test

Questions: 1
Test Difficulty:
Average Time Spent: 7 secs

Macromolecule structures and functions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 24 secs

Carbohydrate structures and functions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 34 secs

Aldoses and ketoses practice test

Questions: 1
Test Difficulty:
Average Time Spent: 17 secs

Epimers, chirality, and the anomeric carbon practice test

Questions: 1
Test Difficulty:
Average Time Spent: 9 secs

Glycosidic linkages practice test

Questions: 2
Test Difficulty:
Average Time Spent: 32 secs

Structural carbohydrates practice test

Questions: 2
Test Difficulty:
Average Time Spent: 22 secs

Lipid structures and functions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 31 secs

Lipid classifications practice test

Questions: 2
Test Difficulty:
Average Time Spent: 22 secs

Fatty acids practice test

Questions: 2
Test Difficulty:
Average Time Spent: 1 mins 42 secs

Glycerolipids and triglycerides practice test

Questions: 1
Test Difficulty:
Average Time Spent: 28 secs

Other lipid classifications practice test

Questions: 1
Test Difficulty:
Average Time Spent: 18 secs

Phospholipids practice test

Questions: 2
Test Difficulty:
Average Time Spent: 37 secs

Sphingolipids practice test

Questions: 2
Test Difficulty:
Average Time Spent: 25 secs

Sterols and steroids practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Nucleic acid structures and functions practice test

Questions: 5
Test Difficulty:
Average Time Spent: 1 mins 50 secs

Nucleic acid degradation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 10 secs

Dnases practice test

Questions: 1
Test Difficulty:
Average Time Spent: 15 secs

Regulating nucleic acid degradation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 17 secs

Nucleic acid structures practice test

Questions: 4
Test Difficulty:
Average Time Spent: 38 secs

Dna and rna practice test

Questions: 2
Test Difficulty:
Average Time Spent: 27 secs

Modifications and epigenetics practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Nitrogenous bases practice test

Questions: 2
Test Difficulty:
Average Time Spent: 31 secs

Nucleic acid derivatives practice test

Questions: 1
Test Difficulty:
Average Time Spent: 13 secs

Sugar-phosphate groups and phosphodiester bonds practice test

Questions: 2
Test Difficulty:
Average Time Spent: 41 secs

Protein structure and functions practice test

Questions: 4
Test Difficulty:
Average Time Spent: 2 mins 6 secs

Protein degradation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 39 secs

Protein hydrolysis practice test

Questions: 1
Test Difficulty:
Average Time Spent: 23 secs

Regulating protein degradation practice test

Questions: 1
Test Difficulty:
Average Time Spent: 1 hrs 4 mins

Ubiquitination pathway practice test

Questions: 1
Test Difficulty:
Average Time Spent: 10 secs

Protein folding practice test

Questions: 4
Test Difficulty:
Average Time Spent: 1 mins 14 secs

Primary structure practice test

Questions: 2
Test Difficulty:
Average Time Spent: 26 secs

Quaternary structure practice test

Questions: 2
Test Difficulty:
Average Time Spent: 19 secs

Regulation and chaperonins practice test

Questions: 1
Test Difficulty:
Average Time Spent: 15 secs

Secondary structure practice test

Questions: 2
Test Difficulty:
Average Time Spent: 32 secs

Tertiary structure practice test

Questions: 2
Test Difficulty:
Average Time Spent: 49 secs

Protein functions practice test

Questions: 3
Test Difficulty:
Average Time Spent: 49 secs

Hydrolases practice test

Questions: 1
Test Difficulty:
Average Time Spent: 7 secs

Isomerases practice test

Questions: 1
Test Difficulty:
Average Time Spent: 19 secs

Ligases practice test

Questions: 1
Test Difficulty:
Average Time Spent: 22 secs

Other protein functions practice test

Questions: 2
Test Difficulty:
Average Time Spent: 55 secs

Structural proteins practice test

Questions: 1
Test Difficulty:
Average Time Spent: 21 secs

Transferases and kinases practice test

Questions: 2
Test Difficulty:
Average Time Spent: 33 secs

Transport proteins practice test

Questions: 1
Test Difficulty:
Average Time Spent: 27 secs

Protein structure practice test

Questions: 2
Test Difficulty:
Average Time Spent: 23 secs

Active site practice test

Questions: 1
Test Difficulty:
Average Time Spent: 27 secs

Globular and fibrous proteins practice test

Questions: 2
Test Difficulty:
Average Time Spent: 33 secs

Peptide bonds practice test

Questions: 2
Test Difficulty:
Average Time Spent: 59 secs
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