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Biochemistry Questions

Practice 41 Biochemistry questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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41
Total Questions
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6
Easy
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32
Medium
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3
Hard
Practice by Exam:Biology(22)General Science(6)Mathematics and Science(4)Social Studies(2)Chemistry(2)General Awareness(2)General Knowledge and General Awareness(1)Science(1)

About Biochemistry — practice questions, PYQs & concepts

Biochemistry is a frequently-tested topic on Biology, General Science, Mathematics and Science. ExamTest.live currently lists 41 Biochemistry questions spanning previous-year papers from 2017 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Biochemistry weight in competitive exams

Across our Biochemistry question bank, the largest sources are Biology (22), General Science (6), Mathematics and Science (4), Social Studies (2) and Chemistry (2). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 6 easy Biochemistry questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
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  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Biochemistry Questions(1–41 of 41)

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Q1mediummcqGeneral AwarenessSSC Selection Post 2018 Higher Secondary Level2026
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नि म्नलि खि त में से कौ न जी वि त जी वों की को शि का ओं के भी तर जी वन-नि र्वा ह रा सा यनि क परि वर्तनों को संदर्भि त करता है?
Q2mediummcqBiologyWBCS Prelims2026
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Target tissue of insulin is
Q3mediummcqGeneral ScienceSSC CGL2026
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RNA is a polymeric molecule. What does RNA stand for?
Q4mediummcqBiologyGeneral Knowledge2026
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The most abundant enzyme in the living world is _________.
Q5mediummcqGeneral SciencePrepp2026
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Which of the following proteins is found in cereal grains (such as wheat, barley, and rye), as referenced in image_3a2500.png?
Q6mediummcqGeneral StudiesCompetitive Exam2026
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Which metal is present in chlorophyll?
Q7mediummcqBiologyCompetitive Exam Practice Paper2026
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The Pyrimidine bases in DNA are:
Q8mediummcqBiologyCompetitive Exam Practice Paper2026
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Which one of the following is a natural auxin?
Q9mediummcqGeneral ScienceCompetitive Exam2026
The food that gives more calories per unit mass of food is
Q10mediummcqBiologyIndian Competitive Exams2026
The carbohydrate which cannot be digested by the human digestive system is
Q11mediummcqBiologyCompetitive Exam Prep2026
Which of the following physiological stages of cellular respiration makes direct metabolic use of molecular oxygen?
Q12mediummcqGeneral ScienceWBCS Prelims2026
Muscle fatigue experienced after strenuous physical exertion is primarily due to the accumulation of:
Q13mediummcqChemistryGeneral Knowledge Exam2026
Which of the following is not a reducing sugar?
Q14mediummcqBiologyGeneral Knowledge2026
Amino acids are building blocks of
Q15mediummcqBiologyGeneral Knowledge2026
Which of the following has the highest calorific value?
Q16mediummcqBiologyIndian Competitive Exams2026
Which of the following is a direct source of energy for muscle contraction?
Q17mediummcqBiologyGeneral Knowledge2026
Which metal is present in haemoglobin?
Q18mediummcqBiologyIndian Competitive Exam Prep2026
The vitamin which helps in clotting of blood is
Q19mediummcqBiologyCompetitive Exam Practice Paper2026
Which of the following processes makes direct use of oxygen?
Q20mediummcqBiologyCompetitive Exam2026
Proteins are made up of _________.
Q21easymcqSocial StudiesUPTET Paper 2 (Social Science)2026
Lemon fruit is a rich source of
Q22hardmcqBiologyIndian Competitive Exams2026
Which non-essential amino acid is synthesised by the hydroxylation of phenylalanine in a reaction catalysed by phenylalanine hydroxylase?
Q23hardmcqSocial StudiesUPTET Paper 2 (Social Science)2026
Which element is called protein of blood?
Q24mediummcqScienceCompetitive Exam2026
How is the molecular weight of a fatty acid determined?
Q25mediummcqGeneral ScienceStaff Selection Commission2026
What is the function of cytochrome P450?
Q26mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
What is the pro-vitamin A or the anti-cancer compound present in carrots called?
Q27mediummcqGeneral ScienceGeneral Knowledge Competitive Exams2026
Which of the following groups represents essential amino acids?
Q28mediummcqGeneral AwarenessGovernment Exams2026
Which of the following vitamin dependent carboxylase is found in the liver?
Q29easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2017
Enzymes are chemically
Q30easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2017
Which of the following acids is also a vitamin?
Q31easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2017
Which of the following organic acids is also classified as a vitamin?
Q32easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2017
Biological enzymes are chemically categorized as
Q33mediummcqChemistryChemistry
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The cell membranes are mainly composed of :
Q34mediummcqBiologyBiology
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In Ornithine cycle, which of the following wastes are removed from the blood?
Q35mediummcqBiologyBiology
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G-6-P dehydrogenase deficiency is associated with haemolysis of:
Q36easymcqBiologyBiology
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Which of the following is the simplest amino acid?
Q37mediummcqBiologyBiology
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Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these:
Q38mediummcqBiologyBiology
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About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and:
Q39hardmcqBiologyBiology
The given graph shows the effect of substrate concentration on the rate of reaction of the enzyme green-gram-phosphatase. What does the graph indicate?
Q40mediumassertion/reasoningBiologyBiology
Comparative biochemistry provides a strong evidence in favour of common ancestry of living beings.
Q41mediummcqBiologyBiology
In Ornithine cycle, which of the following wastes are removed from the blood ?

Frequently Asked Questions

How many Biochemistry questions are on ExamTest.live?▼
We have 41 Biochemistry questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Biochemistry MCQs free?▼
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Which exams include Biochemistry questions?▼
Biochemistry questions are commonly asked in Biology, General Science, Mathematics and Science, Social Studies, Chemistry. You can filter by exam using the links above.
How do I practice Biochemistry questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.