Chemical Biology MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Chemical Biology MCQs for Preparation.
The student can clear their concepts for Chemical Biology online quiz by attempting it. Doing MCQs based Chemical Biology will help you to check your understanding and identify areas of improvement.
Chemical Biology Online MCQs with Answers
Which of the following is an example of a covalent bond?
a) NaCl
b) H2O
c) MgO
d) NH3
Answer: b) H2O
What is the chemical formula for glucose?
a) C6H12O2
b) C6H10O5
c) C6H12O6
d) C6H10O4
Answer: c) C6H12O6
Which of the following is an example of an enzyme?
a) DNA
b) Insulin
c) Hemoglobin
d) Adrenaline
Answer: b) Insulin
Which of the following is an example of an organic molecule?
a) CO2
b) H2O
c) CH4
d) NaCl
Answer: c) CH4
What is the pH of a neutral solution?
a) 0
b) 7
c) 14
d) 1
Answer: b) 7
Which of the following is a strong acid?
a) HCl
b) H2O
c) NaOH
d) NH3
Answer: a) HCl
What is the process by which cells convert glucose into energy called?
a) Photosynthesis
b) Glycolysis
c) Transcription
d) Translation
Answer: b) Glycolysis
Which of the following is a monosaccharide?
a) Starch
b) Cellulose
c) Glucose
d) Sucrose
Answer: c) Glucose
What is the function of DNA polymerase?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: a) Replication of DNA
Which of the following is a product of photosynthesis?
a) Oxygen
b) Carbon dioxide
c) Water
d) Glucose
Answer: d) Glucose
What is the building block of proteins called?
a) Amino acid
b) Monosaccharide
c) Nucleotide
d) Fatty acid
Answer: a) Amino acid
What is the process by which cells convert RNA into proteins called?
a) Photosynthesis
b) Glycolysis
c) Transcription
d) Translation
Answer: d) Translation
Which of the following is a nucleic acid?
a) Glucose
b) Insulin
c) DNA
d) Hemoglobin
Answer: c) DNA
What is the function of an enzyme?
a) Speed up chemical reactions
b) Store genetic information
c) Transport oxygen
d) Control cell division
Answer: a) Speed up chemical reactions
Which of the following is an example of a lipid?
a) Glucose
b) Insulin
c) DNA
d) Cholesterol
Answer: d) Cholesterol
What is the primary function of ATP in cells?
a) Storage of genetic information
b) Building cell membranes
c) Cellular respiration
d) Energy currency
Answer: d) Energy currency
Which of the following is an example of a catabolic reaction?
a) Photosynthesis
b) Glycolysis
c) Transcription
d) Translation
Answer: b) Glycolysis
What is the chemical formula for water?
a) CO2
b) H2O
c) CH4
d) NaCl
Answer: b) H2O
Which of the following is an example of an inorganic molecule?
a) Glucose
b) Insulin
c) Oxygen
d) Cholesterol
Answer: c) Oxygen
What is the function of RNA polymerase?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: b) Transcription of RNA
Which of the following is an example of an ion?
a) NaCl
b) H2O
c) CH4
d) NH3
Answer: a) NaCl
What is the process by which cells use oxygen to produce energy called?
a) Photosynthesis
b) Glycolysis
c) Respiration
d) Fermentation
Answer: c) Respiration
Which of the following is a polysaccharide?
a) Starch
b) Cellulose
c) Glucose
d) Sucrose
Answer: a) Starch
What is the function of tRNA in protein synthesis?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: c) Translation of proteins
Which of the following is a product of cellular respiration?
a) Oxygen
b) Carbon dioxide
c) Water
d) Glucose
Answer: b) Carbon dioxide
What is the building block of nucleic acids called?
a) Amino acid
b) Monosaccharide
c) Nucleotide
d) Fatty acid
Answer: c) Nucleotide
What is the process by which cells convert DNA into RNA called?
a) Photosynthesis
b) Glycolysis
c) Transcription
d) Translation
Answer: c) Transcription
Which of the following is a protein?
a) Glucose
b) Insulin
c) DNA
d) Cholesterol
Answer: b) Insulin
What is the function of a catalyst in a chemical reaction?
a) Speed up the reaction
b) Store energy
c) Transport ions
d) Control cell division
Answer: a) Speed up the reaction
Which of the following is an example of a saturated fat?
a) Olive oil
b) Sunflower oil
c) Coconut oil
d) Fish oil
Answer: c) Coconut oil
What is the function of a buffer in a solution?
a) Maintain pH
b) Speed up reactions
c) Store energy
d) Control cell division
Answer: a) Maintain pH
Which of the following is an example of an endothermic reaction?
a) Combustion of gasoline
b) Freezing of water
c) Photosynthesis
d) Digestion of food
Answer: c) Photosynthesis
What is the function of a cell membrane?
a) Store genetic information
b) Build proteins
c) Control cell division
d) Control the passage of substances into and out of the cell
Answer: d) Control the passage of substances into and out of the cell
Which of the following is an example of an anabolic reaction?
a) Cellular respiration
b) Glycolysis
c) Transcription
d) Photosynthesis
Answer: d) Photosynthesis
What is the chemical formula for carbon dioxide?
a) CO2
b) H2O
c) CH4
d) NaCl
Answer: a) CO2
Which of the following is an example of an organic solvent?
a) Water
b) Methanol
c) Sodium chloride
d) Nitric acid
Answer: b) Methanol
What is the function of the Golgi apparatus in cells?
a) Protein synthesis
b) Storage of genetic information
c) Transport of ions
d) Packaging and distribution of molecules
Answer: d) Packaging and distribution of molecules
Which of the following is an example of an isotonic solution?
a) Hypotonic
b) Hypertonic
c) Neutral
d) None of the above
Answer: c) Neutral
What is the function of a ribosome in cells?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: c) Translation of proteins
Which of the following is an example of an essential amino acid?
a) Alanine
b) Leucine
c) Glutamine
d) Aspartic acid
Answer: b) Leucine
What is the process by which cells divide and reproduce called?
a) Photosynthesis
b) Glycolysis
c) Mitosis
d) Fermentation
Answer: c) Mitosis
Which of the following is an example of an inorganic solvent?
a) Water
b) Methanol
c) Acetone
d) Ethanol
Answer: a) Water
What is the function of the mitochondria in cells?
a) Photosynthesis
b) Glycolysis
c) Cellular respiration
d) Protein synthesis
Answer: c) Cellular respiration
Which of the following is an example of an ionic bond?
a) H2O
b) CO2
c) NaCl
d) CH4
Answer: c) NaCl
What is the pH of a basic solution?
a) 0
b) 7
c) 14
d) 1
Answer: c) 14
Which of the following is an example of a reducing agent?
a) Oxygen
b) Glucose
c) Carbon dioxide
d) Water
Answer: b) Glucose
What is the function of the endoplasmic reticulum in cells?
a) Protein synthesis
b) Storage of genetic information
c) Transport of ions
d) Detoxification of drugs
Answer: a) Protein synthesis
Which of the following is an example of a hypertonic solution?
a) Hypotonic
b) Hypertonic
c) Neutral
d) None of the above
Answer: b) Hypertonic
What is the function of mRNA in protein synthesis?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: c) Translation of proteins
Which of the following is an example of a nonpolar molecule?
a) Water
b) Methanol
c) Sodium chloride
d) Nitric acid
Answer: c) Sodium chloride
What is the process by which cells convert light energy into chemical energy called?
a) Photosynthesis
b) Glycolysis
c) Respiration
d) Fermentation
Answer: a) Photosynthesis
Which of the following is an example of a polysaccharide?
a) Starch
b) Cellulose
c) Glucose
d) Sucrose
Answer: b) Cellulose
What is the function of rRNA in protein synthesis?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: c) Translation of proteins
Which of the following is an example of an exothermic reaction?
a) Combustion of gasoline
b) Freezing of water
c) Photosynthesis
d) Digestion of food
Answer: a) Combustion of gasoline
What is the function of a lysosome in cells?
a) Protein synthesis
b) Storage of genetic information
c) Breakdown of cellular waste
d) Control the passage of substances into and out of the cell
Answer: c) Breakdown of cellular waste
Which of the following is an example of a disaccharide?
a) Glucose
b) Fructose
c) Sucrose
d) Galactose
Answer: c) Sucrose
What is the process by which cells convert amino acids into proteins called?
a) Photosynthesis
b) Glycolysis
c) Transcription
d) Translation
Answer: d) Translation
Which of the following is an example of a nucleotide?
a) Glucose
b) Insulin
c) DNA
d) Cholesterol
Answer: c) DNA
What is the function of an inhibitor in a chemical reaction?
a) Speed up the reaction
b) Store energy
c) Prevent or slow down the reaction
d) Control cell division
Answer: c) Prevent or slow down the reaction
Which of the following is an example of an unsaturated fat?
a) Olive oil
b) Butter
c) Coconut oil
d) Beef fat
Answer: a) Olive oil
What is the function of an ion channel in a cell membrane?
a) Store genetic information
b) Build proteins
c) Control cell division
d) Allow the passage of ions into and out of the cell
Answer: d) Allow the passage of ions into and out of the cell
Which of the following is an example of a feedback mechanism in cells?
a) Photosynthesis
b) Glycolysis
c) Cellular respiration
d) Homeostasis
Answer: d) Homeostasis
What is the chemical formula for table salt?
a) CO2
b) H2O
c) CH4
d) NaCl
Answer: d) NaCl
Which of the following is an example of an organic solvent?
a) Water
b) Methanol
c) Sodium chloride
d) Nitric acid
Answer: b) Methanol
What is the function of the nucleus in cells?
a) Photosynthesis
b) Glycolysis
c) Storage of genetic information
d) Protein synthesis
Answer: c) Storage of genetic information
Which of the following is an example of an intramolecular force?
a) Hydrogen bonding
b) Van der Waals forces
c) Ionic bonding
d) Hydrophobic interactions
Answer: a) Hydrogen bonding
What is the process by which cells break down glucose to produce ATP called?
a) Photosynthesis
b) Glycolysis
c) Respiration
d) Fermentation
Answer: b) Glycolysis
Which of the following is an example of a monosaccharide?
a) Starch
b) Cellulose
c) Glucose
d) Sucrose
Answer: c) Glucose
What is the function of DNA helicase?
a) Replication of DNA
b) Transcription of RNA
c) Translation of proteins
d) Metabolism of carbohydrates
Answer: a) Replication of DNA
Which of the following is an example of a product in a chemical reaction?
a) Reactant
b) Catalyst
c) Enzyme
d) Oxygen
Answer: d) Oxygen
