Biochemistry Quiz

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Welcome to our Biochemistry Quiz, where you can put your knowledge to the test and uncover the fascinating world of biochemical processes. Whether you’re a novice enthusiast or a seasoned scholar, this interactive quiz is designed to engage and challenge you.

Embark on a journey to explore the intricate mechanisms of life at the molecular level. From understanding metabolic pathways to unraveling the complexities of cellular structures, this quiz will take you on an enlightening adventure through the realm of biochemistry.

Get ready to delve into the world of biomolecules, enzymes, and genetic coding. With each question, you’ll gain valuable insights and deepen your understanding of the fundamental principles that govern living organisms.

So, why wait? Dive into our Free Online Biochemistry Quiz and unlock the mysteries of the biochemical world. It’s time to ignite your curiosity and expand your knowledge. Let’s embark on this captivating journey together!

Disclaimer: The hard questions in the Biochemistry Quiz are challenging. To finish the game and reaching the master level typically requires a significant amount of grit, determination and perseverance. I you want to learn more about biochemistry check out our article about Biochemistry as a passion.

Question 1:

Which biomolecule is the primary source of energy for living organisms?

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Think about which nutrient is commonly associated with providing energy.
Click to see Answer ⬇
Carbohydrates - Carbohydrates are broken down into glucose, which is used as the primary energy source for cellular processes.

Question 2:

Which biomolecule is composed of amino acids and is involved in various structural and functional roles in the body?

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Think about the biomolecule responsible for structural and functional roles in the body.
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Proteins - Proteins are essential for the structure, function, and regulation of the body's tissues and organs.

Question 3:

Which biomolecule stores genetic information and is responsible for the transmission of traits from parents to offspring?

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Think about the biomolecule involved in genetic information and inheritance.
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Nucleic acids - Nucleic acids, such as DNA and RNA, carry genetic instructions for the development, functioning, growth, and reproduction of all known organisms.

Question 4:

Which biomolecule is primarily involved in the storage and release of energy, as well as providing insulation and protection for organs?

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Think about the biomolecule associated with energy storage and insulation.
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Lipids - Lipids, including fats and oils, serve as the body's primary long-term energy storage and provide insulation and protection for organs.

Question 5:

Which biomolecule is commonly known as sugars and serves as a quick source of energy for the body?

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Think about the biomolecule associated with quick energy.
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Carbohydrates - Carbohydrates are broken down into glucose, which is readily available to provide immediate energy for cellular processes.

Question 6:

Which biomolecule is involved in the storage and transmission of genetic information?

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Think about the biomolecule directly associated with genetic information.
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Nucleic acids - Nucleic acids, including DNA and RNA, store and transmit genetic information through their unique sequences of nucleotides.

Question 7:

Which process involves the conversion of glucose into pyruvate?

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This process occurs in the cytoplasm of the cell.
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Glycolysis - Glycolysis is the initial step in cellular respiration and involves the breakdown of glucose into pyruvate.

Question 8:

What is the primary function of enzymes in biochemical reactions?

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Enzymes are known for their catalytic activity.
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Speed up the rate of reactions - Enzymes function as biological catalysts, increasing the speed of biochemical reactions by lowering the activation energy required.

Question 9:

Which of the following is a nonpolar amino acid?

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Look for the amino acid with a hydrophobic side chain.
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Phenylalanine - Phenylalanine is nonpolar because its side chain is hydrophobic, making it repel water.

Question 10:

What is the main function of the pentose phosphate pathway in metabolism?

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Consider the role of NADPH in cellular processes.
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NADPH production - The pentose phosphate pathway generates NADPH, which is utilized in biosynthetic reactions and helps maintain cellular redox balance.

Question 11:

What is the process by which a molecule is broken down into smaller units by the addition of water molecules at the site of bond cleavage?

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This process involves the addition of water to break down molecules.
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Hydrolysis - Hydrolysis is a fundamental process in biochemistry where chemical bonds are broken by the addition of water, leading to the breakdown of complex molecules into smaller units.

Question 12:

Which of the following is a coenzyme that plays a crucial role in transferring acyl groups in biochemical reactions?

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This coenzyme is involved in acyl group transfer.
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Coenzyme A - Coenzyme A is a vital coenzyme that plays a central role in transferring acyl groups in various biochemical reactions, particularly in the citric acid cycle and fatty acid metabolism.

Question 13:

Which of the following is a key enzyme involved in the synthesis of DNA?

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This enzyme is specifically involved in DNA synthesis.
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DNA polymerase - DNA polymerase is a crucial enzyme that catalyzes the synthesis of new DNA strands during DNA replication and repair processes.

Question 14:

Which of the following is a process that involves the removal of an amino group from a molecule?

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This process involves the removal of an amino group.
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Deamination - Deamination is a biochemical process where an amino group is removed from a molecule, often occurring in the catabolism of amino acids.

Question 15:

Which of the following is a coenzyme that plays a crucial role in transferring electrons during cellular respiration?

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This coenzyme is involved in electron transfer during cellular respiration.
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NAD+ - NAD+ is a vital coenzyme that functions as an electron carrier, playing a central role in the transfer of electrons during cellular respiration and other metabolic pathways.

Question 16:

Which pigment is responsible for the color of ripe tomatoes and strawberries?

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This pigment is commonly found in red fruits and vegetables.
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Lycopene - Lycopene is a red pigment responsible for the color of ripe tomatoes and strawberries. It is a carotenoid compound found in fruits and vegetables.