Biochemistry MCQs with Answers

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Welcome to the Biochemistry MCQs with Answers. In this post, we have shared Biochemistry Online Test for different competitive exams. Find practice Biochemistry Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Biochemistry.

Biochemistry Online Quiz

By presenting 3 options to choose from, Biochemistry Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Biochemistry Questions and Answers and click over the correct answer.

Test Name: Biochemistry MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Biochemistry

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1 / 40

The electron transport chain is part of which cellular process?

Photosynthesis

Glycolysis

Cellular respiration

2 / 40

The process of converting glucose into pyruvate is known as _______________.

Glycolysis

Krebs cycle

Calvin cycle

3 / 40

_______________ is the process by which green plants manufacture their own food using sunlight.

Respiration

Fermentation

Photosynthesis

4 / 40

The process of converting light energy into chemical energy occurs in the _______________ of plant cells.

Chloroplasts

Mitochondria

Nucleus

5 / 40

_______________ is a form of RNA that carries amino acids to the ribosome during protein synthesis.

Messenger RNA

Ribosomal RNA

Transfer RNA

6 / 40

The enzyme responsible for breaking down proteins into amino acids is called _______________.

Amylase

Protease

Lipase

7 / 40

The primary structure of a protein refers to the _______________.

Arrangement of secondary structures

Overall 3D shape

Sequence of amino acids

8 / 40

Which enzyme is responsible for breaking down starch into maltose?

Amylase

Sucrase

Maltase

9 / 40

ATP stands for _______________.

Adenosine diphosphate

Adenosine triphosphate

Adenosine monophosphate

10 / 40

The basic building blocks of proteins are _______________.

Amino acids

Glucose

Fatty acids

11 / 40

Which of the following is NOT a type of lipid?

Triglyceride

Phospholipid

Glycogen

12 / 40

The structure of DNA was first described by _______________ and _______________.

Rosalind Franklin, Maurice Wilkins

James Watson, Francis Crick

Gregor Mendel, Thomas Hunt Morgan

13 / 40

_______________ is the process by which cells capture the energy from sunlight and convert it into chemical energy.

Photosynthesis

Fermentation

Respiration

14 / 40

Which of the following is NOT a component of a nucleotide?

Pentose sugar

Phosphate group

Nitrogenous base

15 / 40

Which of the following is a purine nitrogenous base?

Adenine

Cytosine

Thymine

16 / 40

_______________ is the process by which RNA is decoded to produce a specific amino acid sequence during protein synthesis.

Translation

Transcription

Replication

17 / 40

The process of converting nitrogen gas into ammonia is known as _______________.

Denitrification

Nitrogen fixation

Nitrification

18 / 40

What is the main function of the enzyme helicase?

Unwinding DNA

Proofreading DNA

Adding nucleotides to DNA

19 / 40

The building blocks of nucleic acids are _______________.

Amino acids

Nucleotides

Monosaccharides

20 / 40

The bond that holds one water molecule to another is called a _______________ bond.

Ionic

Covalent

Hydrogen

21 / 40

Which of the following is NOT a function of lipids?

Providing energy

Building cell membranes

Insulating organs

22 / 40

Which of the following is a type of secondary structure in proteins?

Alpha helix

Tertiary structure

Beta sheet

23 / 40

The enzyme responsible for joining Okazaki fragments during DNA replication is called _______________.

DNA ligase

DNA polymerase

DNA helicase

24 / 40

The process of making a strand of RNA from a DNA template is called _______________.

Replication

Transcription

Translation

25 / 40

Which of the following is a polysaccharide?

Glucose

Cellulose

Fructose

26 / 40

Enzymes are _______________.

Lipids

Nucleic acids

Biological catalysts

27 / 40

The bond that joins the nucleotides in a DNA molecule is called _______________.

Glycosidic

Peptide

Phosphodiester

28 / 40

Which of the following is a storage form of carbohydrates in animals?

Starch

Cellulose

Glycogen

29 / 40

Which of the following is NOT a function of proteins?

Energy storage

Enzyme catalysis

Structural support

30 / 40

Which of the following is NOT a function of carbohydrates?

Structural support

Providing quick energy

Cell signaling

31 / 40

_______________ are the primary site of protein synthesis in a cell.

Nucleus

Ribosomes

Mitochondria

32 / 40

The breakdown of fatty acids to generate ATP is known as _______________.

Beta-oxidation

Glycolysis

Calvin cycle

33 / 40

Which of the following is NOT a component of an amino acid?

Carboxyl group

Amino group

Phosphate group

34 / 40

_______________ is the process of copying genetic information from DNA to RNA.

Translation

Replication

Transcription

35 / 40

Which of the following is NOT a function of nucleic acids?

Protein synthesis

Energy storage

Genetic information storage

36 / 40

The process of breaking down glucose to produce ATP in the absence of oxygen is called _______________.

Aerobic respiration

Anaerobic respiration

Fermentation

37 / 40

Which of the following is NOT a type of RNA?

Transfer RNA

Replication RNA

Messenger RNA

38 / 40

What is the primary function of the enzyme DNA polymerase?

Breaking down DNA

Synthesizing DNA

Repairing DNA

39 / 40

Which of the following is a lipid-soluble vitamin?

Vitamin B12

Vitamin C

Vitamin A

40 / 40

The monomer units of proteins are _______________.

Nucleotides

Amino acids

Monosaccharides

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admin2 weeks ago

0 3 1 minute read