Biochemistry Quizzes, Questions & Answers

All Grades

Biomolecules Quizzes

Take a look at this awesome and fun quiz that is based on biology questions on Biomolecules. Have you studied biomolecules? Do you think you have a good understanding of it? If yes...

Questions: 20 | Attempts: 42061 | Last updated: Aug 03, 2026

Sample Question
Match each monomer to the polymer made from the monomers.

Nucleotide

DNA/RNA

Amino acid

Polypeptide (protein)

biomolecules, including enzymes quiz

Explore key concepts in biochemistry with this biomolecules quiz, focusing on enzymes, carbohydrates, lipids, and proteins. Assess your understanding of their structures, functions...

Questions: 13 | Attempts: 4442 | Last updated: Jan 21, 2025

Sample Question
Glucose, the primary source of energy for a cell, is a type of

Polypeptide

Polysaccharide

Disaccharide

Monosaccharide

4 Molecules of Life

This quiz will tests my 'students' on the four molecules of life. The four molecules are carbohydrate, protein, lipid and nucleic acids.

Questions: 9 | Attempts: 3639 | Last updated: Jun 15, 2026

Sample Question
What are the four molecules of life?

Carbohydrates, Proteins, Water, and Blood

Carbohydrates, Proteins, Lipids, and Nucleic Acids

Lipids, Nucleic Acids, Oxygen, and Water

Proteins, Carbohydrates, Vitamins, and Minerals

All Biomolecules Quizzes

Bio Carbohydrates Quizzes

Biochemistry Quiz On Carbohydrates

Carbohydrates are essential biomolecules that provide energy and play crucial roles in biological processes. This Carbohydrates Quiz is designed to test your knowledge of their str...

Questions: 25 | Attempts: 63334 | Last updated: Dec 18, 2025

Sample Question
Which of these elements is NOT a constituent of Carbohydrates?

Carbon

Hydrogen

Oxygen

Nitrogen

Quiz on Carbohydrates Biochemistry

Hey, do you have good knowledge about carbohydrates biochemistry, or are you learning this subject? Here's a quiz on carbohydrates biochemistry for you to test your knowledge r...

Questions: 10 | Attempts: 16753 | Last updated: Sep 17, 2025

Sample Question
What is the relationship between glucose, mannose and galactose?

They are isomers

They are epimers

They are ketoses

No relationship exists

Organic Chemistry Carbohydrates Quiz

Carbohydrates have six major functions within the body; they provide energy and regulation of blood glucose. Most people think that too much carbohydrate is unhealthy. Having studi...

Questions: 27 | Attempts: 7154 | Last updated: Mar 05, 2025

Sample Question
What type of atoms do carbohydrates contain?

Carbon, oxygen, hydrogen

Carbon, hydrogen, nitrogen

Carbon, oxygen, nitrogen

All Bio Carbohydrates Quizzes

Proteins Quizzes

Biochemistry 3 - Amino Acids & Proteins

A quiz for the SBI4U Biology Course Biochemistry Unit

Questions: 17 | Attempts: 15850 | Last updated: Feb 06, 2025

Sample Question
The type of bond that forms between amino acids in order to eventually form a protein is called a....

Glycosidic linkage

Hydrogen bond

Ionic bond

Peptide bond

Quiz: Test Your Knowledge of Amino Acids and Proteins!

Welcome to the “Amino Acids and Proteins Quiz”! This quiz is designed to test your knowledge of amino acids and proteins, fundamental components of biochemist...

Questions: 15 | Attempts: 6215 | Last updated: Apr 14, 2025

Sample Question
The monomeric unit of a protein is an _______________.

Amino acid

Proteins Biochemistry Quiz: Amino Acids and Folding

The 'Biochem Proteins' quiz assesses understanding of protein structure and function, including oligopeptides, secondary structures, beta-turns, disulfide linkages, and collagen-re...

Questions: 10 | Attempts: 4381 | Last updated: Mar 21, 2025

Sample Question
What are short polypeptides called?

Primary structures

Secondary structures

Polypeptides

Oligopeptides

All Proteins Quizzes

Enzymes Quizzes

Enzymes Biochemistry Trivia Quiz!

We welcome you to this Enzymes biochemistry trivia quiz! Do you know anything about enzymes and biochemistry? Can you pass this quiz? It is defined as a macromolecule that catalyze...

Questions: 20 | Attempts: 5276 | Last updated: Aug 19, 2025

Sample Question
What best describes cytochrome P450 isoenzymes?

They are located in the small intestine and are responsible for oxidative metabolism of a majority of drugs

They are located in the liver and are responsible for oxidative metabolism of a majority of drugs

They are located in the small intestine and are responsible for reductive metabolism of a majority of drugs

They are located in the liver and are responsible for reductive metabolism of a majority of drugs

enzyme catalysis quiz questions

Explore key concepts of enzyme catalysis with questions on active sites, Michaelis-Menten kinetics, competitive inhibition, and allosteric control. This quiz enhances understanding...

Questions: 10 | Attempts: 1701 | Last updated: Mar 21, 2025

Sample Question
Which of the following statements about the active site of an enzyme is correct?

The active site of an enzyme binds the substrate of the reaction it catalyses more tightly than it does the transition state intermediate

The active site of an enzyme binds the substrate of the reaction it catalyses less tightly than it does the transition state intermediate.

The active site of an enzyme binds the product of the reaction it catalyses more tightly than it does the transition state intermediate.

The active site of an enzyme is complementary to the substrate of the reaction it catalyses

Enzyme Quiz Questions! Trivia Test!

What do you know about enzymes? Would you be able to pass this quiz? This quiz asks pertinent questions, such as the term used to describe the energy needed to get a reaction start...

Questions: 17 | Attempts: 355 | Last updated: Mar 20, 2025

Sample Question
What is the term used to describe the energy needed to get a reaction started?

Adhesion energy

Activation energy

Cohesion energy

Chemical energy

All Enzymes Quizzes

Lipids Quizzes

biochemistry lipids quiz

Check out our amazing biochemistry quiz designed to test how much you know about lipids. You must have studied fats and lipids in your biochemistry chapters. It's time to check...

Questions: 20 | Attempts: 25695 | Last updated: Sep 09, 2025

Sample Question
The basic backbone of most fat or oil molecules is an alcohol called....

Glycerol

Glycerin

Glyceric acid

Glycogen

Nutrition Quiz on Lipids! MCQ

Explore the fascinating world of lipids in our 'Nutrition Quiz on Lipids! MCQ'. This quiz covers major types of lipids, their chemical structure, and their biological roles. Enhanc...

Questions: 11 | Attempts: 3329 | Last updated: Mar 21, 2025

Sample Question
Select the 3 MAJOR types of LIPIDS.

Triglyceride

Saturated

Trans

Phospholipids

Chemistry and Nutrition Test 2 Lipids Eating Disorders Fat Soluble Vitamins

In the world today the people that have a slender body frame are regarded higher than those assumed to be fat. This therefore leads people to be obsessed with having the perfect bo...

Questions: 48 | Attempts: 2672 | Last updated: Mar 22, 2025

Sample Question
Lipids are made up of:

Carbon, Hydrogen, Oxygen

Carbon, Hydrogen, Nitrogen

Hydrogen, Oxygen, Nitrogen

Hydrogen, Nitrogen, Fluoride

All Lipids Quizzes

Nucleic Acids Quizzes

Building Blocks of Life: Structure of Nucleotides Quiz

This quiz contains 15 questions about the structure of nucleotides, the essential building blocks of nucleic acids like DNA and RNA. Understanding nucleotides is crucial for graspi...

Questions: 15 | Attempts: 153 | Last updated: Mar 09, 2026

Sample Question
Which three components make up a single nucleotide unit

Sugar, Protein, Lipid

Phosphate, Sugar, Nitrogenous Base

Amino acid, Glucose, Base

Phosphate, Glycerol, Base

Unzipping the Code: DNA Denaturation Explained Quiz

This quiz on DNA denaturation includes 15 questions designed to test your understanding of nucleic acids at a Grade 12 level. You will explore key concepts such as the structure of...

Questions: 15 | Attempts: 30 | Last updated: Mar 09, 2026

Sample Question
What happens to the secondary structure of DNA during denaturation

Covalent bonds break

Hydrogen bonds break

Phosphates are removed

Sugars dissolve

Genetic Blueprints: Difference Between DNA and RNA Quiz

This quiz features 15 questions that explore the differences between DNA and RNA, essential components of genetic blueprints. Understanding these molecules is vital for students in...

Questions: 15 | Attempts: 23 | Last updated: Mar 09, 2026

Sample Question
What is the structural difference between the pentose sugars in DNA and RNA

RNA has an extra oxygen at the 2' carbon

DNA has an extra oxygen at the 3' carbon

RNA is a hexose sugar

DNA lacks a phosphate group

All Nucleic Acids Quizzes

Metabolism Quizzes

Metabolic Type Quiz: Do I Have a Fast Metabolism?

Understanding your metabolic type is essential for creating a diet and lifestyle that supports your health and energy levels. The Do I Have a Fast Metabolism? quiz is designed to o...

Questions: 30 | Attempts: 426585 | Last updated: Jan 02, 2026

Sample Question
What kind of breakfast do you take in the morning?

I don't eat breakfast.

I take a light meal like fruit, toast, or cereal.

I eat very heavy meals like eggs, bacon, ham, and hash browns.

Glycolysis Pathway Quiz

Glycolysis converts glucose into two molecules with three carbons each and releases energy. This quiz on the mechanics of the Glycolysis pathway is aimed at gauging your kn...

Questions: 10 | Attempts: 20387 | Last updated: Jul 07, 2026

Sample Question
Where does glycolysis take place?

The mitochondria

The chloroplast

The cytoplasm

The stroma

lipid metabolism biochemistry MCQ quiz with answers

Do you know about the process of lipid metabolism and how it occurs? Give this lipid metabolism biochemistry MCQ quiz your time and check your knowledge about the same topic. Lipid...

Questions: 10 | Attempts: 12553 | Last updated: Aug 22, 2025

Sample Question
Free fatty acids in the plasma

Circulate in unbound state

Bind to lipoproteins and circulated

Bind to albumin and circulated

Bind to fatty acid binding protein and circulated

All Metabolism Quizzes

Bioenergetics Quizzes

Eicosanoids Biochemistry Quiz: Prostaglandins and Leukotrienes

SGU Biochemistry - Fall 2009, Lecture 59: Eicosanoids Review questions from Lippincott, Mark's, BRS, and lecture notes from Dr. Trotz

Questions: 36 | Attempts: 4347 | Last updated: Mar 22, 2025

Sample Question
Prostaglandins, and the related compounds thromboxanes and ____, are collectively known as eicosanoids (L p. 213).

Leukotrienes

The Ultimate Bioluminescence Quiz

We have made a special bioluminescence quiz for the students of biochemistry. So, are you ready for the ultimate bioluminescence quiz? Bioluminescence is known as the light that is...

Questions: 10 | Attempts: 651 | Last updated: Aug 16, 2025

Sample Question
Incandescent light is produced through

Cold

Heat

Blood

None of these

Biochemical Functional Groups Quiz: Test Your Skills

Functional groups are the building blocks of biochemistry, and knowing them is essential for understanding molecular biology. This quiz on biochemical functional groups will help y...

Questions: 24 | Attempts: 307 | Last updated: Feb 10, 2026

Sample Question
What is the name of this functional group?

Methyl

Hydroxyl

Carbonyl

Acetyl

All Bioenergetics Quizzes

Vitamins Quizzes

Functions of Vitamins and Minerals

Explore the essential roles of vitamins and minerals in human health through this quiz. It focuses on the functions of Thiamin, Riboflavin, Vitamin B6, Niacin, Folate, and Vitamin ...

Questions: 12 | Attempts: 557 | Last updated: Mar 21, 2025

Sample Question
Which of the following is a function of Thiamin (vitamin B1)?

Involved in CHO metabolism and branched-chain amino acid metabolism

Involved in DNA synthesis and amino acid metabolism

Involved in CHO and fatty acid metabolism

Part of coenzyme that assist with formation of blood

Food and Nutrition 3rd edition - Chapter 5 Testbank

The Food and Nutrition testbanks consist of multiple choice questions that test your knowledge of the topics covered in the book. You can use these questions to check your understa...

Questions: 10 | Attempts: 376 | Last updated: Mar 21, 2025

Sample Question
Food security is defined as:

A food supply that is safe and secure from outside threats

A food supply that is able to meet the nutritional needs of its population

A food supply that is tasty and affordable

A food supply that is safe, in sufficient quantities and is satisfactory to a range of consumers

Trivia Quiz: Food and Nutrition 3rd Edition Chapter 4

The Food and Nutrition testbanks consist of multiple choice questions that test your knowledge of the topics covered in the book. You can use these questions to check your understa...

Questions: 10 | Attempts: 204 | Last updated: Mar 21, 2025

Sample Question
The definition of Indigenous is dependent on:

A government decision

Self-identification and acceptance

Documentation of proof

Genetic testing

All Vitamins Quizzes

Hormones Quizzes

Do you know the HCG Diet Meal Plan?

Do you know what's allowed on the HCG Diet Protocol meal plan by Dr. Simeons? There's so many "new" versions out there. So many people think they've out...

Questions: 15 | Attempts: 340 | Last updated: Mar 18, 2025

Sample Question
How many calories per day are allowed on the protocol?

750

500

1200

2000

Nervous and Endocrine Systems Hormones Quiz

This assessment focuses on the nervous and endocrine systems, evaluating knowledge of hormones, their functions, and target organs. Key concepts include the roles of oxytocin, insu...

Questions: 19 | Attempts: 67 | Last updated: Mar 06, 2026

Sample Question
What hormone is stored and released by the posterior pituitary gland?

Oxytocin

Cortisol

Thyroxine

Insulin

Molecular Recognition: Mechanism of Hormone-Receptor Interaction Quiz

This assessment explores the mechanisms of hormone-receptor interactions, evaluating understanding of molecular recognition, binding affinities, and signal transduction. It is esse...

Questions: 15 | Attempts: 29 | Last updated: Mar 06, 2026

Sample Question
Why do hormones only affect specific target cells rather than every cell they encounter in the body?

They are only delivered to certain organs

Target cells possess specific functional receptors

Other cells destroy the hormone immediately

Non-target cells are too small to be affected

All Hormones Quizzes

Cell Signaling Quizzes

Cell Communication And Signaling Quiz

Play this advanced level cell communication and signaling quiz and evaluate your knowledge in biology. Cell signaling or cell communication allows cells to receive, process, and tr...

Questions: 10 | Attempts: 2567 | Last updated: Mar 22, 2025

Sample Question
Which of the following domain is not found in the structure of nuclear receptors?

Hinge domain

C-terminal domain

DNA binding domain

F-domain

Cell Signaling and Transduction Quiz

How good your biochemistry knowledge is? Do you know about cell signaling and transduction? Test your knowledge of cell signaling with the quiz below. Signal transduction, also kno...

Questions: 12 | Attempts: 1255 | Last updated: Aug 16, 2025

Sample Question
Which of the following catalyzes the conversion of ATP to cAMP

Ca ATPase

Adenylyl cyclase

Mg ATPase

H ATPase

Mini 1 part 2 Cell Signaling

Mini 1 part 2 Cell Signaling quiz assesses knowledge on mechanisms like cAMP, IP3, and their roles in cellular processes. It covers topics such as hormone effects, gene transcripti...

Questions: 15 | Attempts: 790 | Last updated: Mar 20, 2025

Sample Question
The second messenger cAMP induces its effects by binding to the regulatory subunits of protein kinase A. What is the immediate target of the second messenger IP3?

A calcium channel in the ER membrane

Phospholipase C

Protein kinase C

A nuclear DNA-binding protein

All Cell Signaling Quizzes

Genetic Code Quizzes

Genetic Glitches: Point Mutation vs Frameshift Quiz

This quiz covers the differences between point mutations and frameshift mutations, featuring 15 questions designed for students in Grade 12. Understanding these genetic glitches is...

Questions: 15 | Attempts: 59 | Last updated: Mar 09, 2026

Sample Question
What is the defining characteristic of a Point Mutation

A whole chromosome is lost

A single nucleotide base is changed, inserted, or deleted

The DNA turns into RNA

The cell dies instantly

Molecular Assembly: Translation in Protein Synthesis Quiz

This quiz covers the molecular assembly process of translation in protein synthesis, featuring 15 questions designed for you in Grade 11. You will explore key concepts such as mRNA...

Questions: 15 | Attempts: 20 | Last updated: Mar 09, 2026

Sample Question
In which part of the cell does the process of translation primarily occur

Nucleus

Mitochondria

Cytoplasm

Lysosome

Coding Limits: Start and Stop Codons Quiz

This quiz features 15 questions about coding limits, focusing on start and stop codons in genetics, which are crucial for understanding how proteins are made. You will explore conc...

Questions: 15 | Attempts: 17 | Last updated: Mar 09, 2026

Sample Question
Which specific codon acts as the primary signal to begin translation in almost all organisms

UAA

AUG

UGA

GGG

All Genetic Code Quizzes

Top Trending Biochemistry Quizzes

Fundamental Of Biochemistry Quiz Questions and Answers

We welcome you to this super fun & informative fundamental of biochemistry quiz questions and answers. Are you ready to test your knowledge and learn new, exciting concepts of biochemistry? Then our cool quiz is just what you...

Questions: 25 | Attempts: 20330 | Last updated: Sep 1, 2025

Sample Question
Characteristic(s) of carbon that contribute to its ability to form diverse organic molecules include

Ability to bond up to four other atoms

Capacity to form single and double bonds

Ability to bond and form branched skeletons

All of the above

The Fermentation Quiz: How Well You Know?

How well do you know fermentation, and do you think you can pass this quiz? Fermentation describes the metabolic process by which organic molecules are transformed into acids, gases, or alcohol in the deficiency of oxygen or any...

Questions: 10 | Attempts: 4676 | Last updated: Mar 22, 2025

Sample Question
What is fermentation?

A process where a sugar is broken down into ethanol and carbon dioxide

A process where a sugar is broken down into yeast and carbon dioxide

A process where a yeast is broken down into ethanol and carbon dioxide

A process where a sugar is broken down into ethanol and oxygen

A process where a sugar is broken down into ethanol and limewater

What Amino ACID Are You?

Find out what amino acid you are! This is just for fun!

Questions: 5 | Attempts: 7654 | Last updated: Mar 22, 2025

Sample Question
How much sleep do you get on a regular basis?

8 hours or more

Less than 8 hours

Class Xii MCQ Test- Biomolecules

TIME ALLOTTED: 40 MINUTES NEGATIVE MARKING OF -1 MARKS FOR INCORRECT ANSWERS

Questions: 30 | Attempts: 4029 | Last updated: Feb 21, 2025

Sample Question
The helical structure of protein is stabilized by

Hydrogen bonds

Ether bonds

Peptide bonds

Dipeptide bonds

Posn Biology Quiz #1 เรื่อง สารชีวโมเลกุล

แบบทดสอบ สอวน. ชีววิทยาชุดที่ 1 "สารชีวโมเลกุล"

Questions: 13 | Attempts: 1181 | Last updated: Mar 21, 2025

Sample Question
จงพิจารณาข้อความต่อไปนี้ก. สารอินทรีย์ที่พบมากที่สุดในร่างกายของสิ่งมีชีวิต คือ น้ำ (H2O)ข. โปรตีนจัดเป็นสารชีวโมเลกุลที่พบมากที่สุดในร่างกายของสิ่งมีชีวิตค. วิตามินทุกชนิดจะต้องมีธาตุคาร์บอนและไฮโดรเจนเป็นองค์ประกอบเสมอข้อความใดต่อไปนี้กล่าวถูกต้อง

ก และ ข

ก และ ค

ข และ ค

ก ข และ ค

ไม่มีข้อใดกล่าวถูกต้อง

Popular Biochemistry Quizzes

An Informative Quiz On Basic Biochemistry

Questions: 13 | Attempts: 21909 | Last updated: Mar 13, 2025

Sample Question
Which one is odd here?

Nucleic acid

Monosaccharides

Lipid

Protein

The Kreb Cycle and Electron Transport Chain

Questions: 5 | Attempts: 10133 | Last updated: May 1, 2025

Sample Question
What process occurs in the mitochondria membrane?

The Kreb cycle

The electron transport chain

Spectrum

Protein Review

Questions: 10 | Attempts: 9925 | Last updated: Sep 23, 2025

Sample Question
What is the central atom in an Amino Acid?

Hydrogen

Carbon

Oxygen

Water

Amino

Biology Exam Review Test Part One - Macromolecules

Questions: 10 | Attempts: 8354 | Last updated: Oct 8, 2025

Sample Question
The four main categories of large biological molecules present in iving systems are ...

Proteins, nucleic acids, polysaccharides, and lipids

Monosaccharides, lipids, polysaccharides, and proteins

RNA, DNA, proteins, and carbohydrates

Proteins, DNA , RNA, and steroids

Recent Biochemistry Quizzes