Cell 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 Cell Biology MCQs for Preparation.
The student can clear their concepts for Cell Biology online quiz by attempting it. Doing MCQs based Cell Biology will help you to check your understanding and identify areas of improvement.
Cell Biology Online MCQs with Answers
Which organelle is responsible for protein synthesis in a cell?
a) Golgi apparatus
b) Mitochondria
c) Ribosomes
d) Lysosomes
Which of the following is NOT a function of the plasma membrane?
a) Regulation of cell entry and exit
b) Protection and support
c) Energy production
d) Cell signaling
Which cellular structure contains the cell’s genetic material?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Endoplasmic reticulum
Which of the following is responsible for the breakdown of cellular waste and debris?
a) Lysosomes
b) Ribosomes
c) Vacuoles
d) Centrioles
Which organelle is known as the “powerhouse” of the cell?
a) Endoplasmic reticulum
b) Nucleus
c) Mitochondria
d) Chloroplasts
Which of the following is NOT a type of cell junction?
a) Gap junctions
b) Tight junctions
c) Desmosomes
d) Ribosomes
What is the primary function of the Golgi apparatus?
a) Protein synthesis
b) Lipid synthesis
c) Carbohydrate synthesis
d) Sorting and modifying cellular products
Which type of cell division produces gametes (sex cells)?
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Which of the following is NOT a phase of the cell cycle?
a) Interphase
b) Prophase
c) Metaphase
d) Telophase
Which of the following structures is responsible for maintaining cell shape and providing mechanical support?
a) Cytoskeleton
b) Nucleus
c) Endoplasmic reticulum
d) Golgi apparatus
What is the site of photosynthesis in plant cells?
a) Nucleus
b) Mitochondria
c) Lysosomes
d) Chloroplasts
Which of the following is NOT a function of the endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis
c) Calcium storage
d) DNA replication
Which organelle is responsible for detoxifying harmful substances in the cell?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Which of the following is a characteristic feature of prokaryotic cells?
a) Presence of a nucleus
b) Membrane-bound organelles
c) Single circular chromosome
d) Larger size compared to eukaryotic cells
Which type of transport requires energy input from the cell?
a) Passive diffusion
b) Facilitated diffusion
c) Osmosis
d) Active transport
Which of the following is NOT a component of the cytoskeleton?
a) Microtubules
b) Intermediate filaments
c) Microfilaments
d) Lysosomes
What is the function of the centrioles in animal cells?
a) Protein synthesis
b) Cell division
c) Photosynthesis
d) Lipid synthesis
What is the role of the nucleolus within the nucleus?
a) Storage of genetic material
b) Protein synthesis
c) Ribosome assembly
d) ATP production
Which of the following is responsible for cell adhesion and maintaining tissue integrity?
a) Gap junctions
b) Tight junctions
c) Desmosomes
d) Ribosomes
What is the function of the cilia in cells?
a) Cell movement
b) Protein synthesis
c) Lipid synthesis
d) ATP production
Which organelle contains enzymes for intracellular digestion?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Which of the following is NOT a type of passive transport?
a) Diffusion
b) Osmosis
c) Active transport
d) Facilitated diffusion
What is the role of the cell wall in plant cells?
a) Protection and support
b) Protein synthesis
c) ATP production
d) Lipid synthesis
Which organelle is responsible for the synthesis and modification of proteins in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Which of the following is responsible for the synthesis of ATP in eukaryotic cells?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Chloroplasts
Which of the following is NOT a function of the nucleus?
a) Storage of genetic material
b) Protein synthesis
c) Regulation of cell activities
d) Cell division
What is the function of the smooth endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis
c) Ribosome assembly
d) DNA replication
Which type of RNA is involved in protein synthesis?
a) Messenger RNA (mRNA)
b) Transfer RNA (tRNA)
c) Ribosomal RNA (rRNA)
d) All of the above
Which of the following is responsible for the packaging and sorting of cellular products for transport?
a) Lysosomes
b) Golgi apparatus
c) Peroxisomes
d) Vacuoles
Which of the following is NOT a function of the mitochondria?
a) ATP production
b) Cellular respiration
c) Calcium storage
d) Apoptosis regulation
Which process involves the movement of molecules from an area of high concentration to an area of low concentration?
a) Osmosis
b) Diffusion
c) Facilitated diffusion
d) Active transport
What is the function of the flagella in cells?
a) Cell movement
b) Protein synthesis
c) Lipid synthesis
d) ATP production
Which organelle is responsible for the synthesis of lipids in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Which of the following is NOT a characteristic feature of eukaryotic cells?
a) Presence of a nucleus
b) Membrane-bound organelles
c) Larger size compared to prokaryotic cells
d) Single circular chromosome
Which of the following is responsible for the synthesis of RNA in the cell?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Chloroplasts
What is the primary function of the ribosomes in cells?
a) Energy production
b) Protein synthesis
c) Lipid synthesis
d) ATP production
Which type of cell division is responsible for growth and tissue repair?
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
What is the function of the cytoplasm in a cell?
a) Protection and support
b) Regulation of cell entry and exit
c) Energy production
d) Cellular metabolism and transportation
Which of the following is NOT a component of the endomembrane system?
a) Nucleus
b) Golgi apparatus
c) Endoplasmic reticulum
d) Lysosomes
Which type of cellular transport involves the engulfing of large particles or microorganisms by the cell?
a) Pinocytosis
b) Phagocytosis
c) Exocytosis
d) Endocytosis
Which organelle is responsible for the detoxification of drugs and harmful substances in liver cells?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Which of the following is NOT a function of the plasma membrane?
a) Cell signaling
b) Regulation of cell entry and exit
c) Protection and support
d) Energy production
What is the function of the nuclear envelope?
a) Storage of genetic material
b) Protein synthesis
c) Regulation of cell activities
d) Separation of nucleus from cytoplasm
Which of the following structures is responsible for the synthesis of ribosomal RNA (rRNA)?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Nucleolus
Which of the following is responsible for the storage of water, nutrients, and waste products in plant cells?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Which type of cellular transport involves the movement of water across a semipermeable membrane?
a) Pinocytosis
b) Phagocytosis
c) Exocytosis
d) Osmosis
What is the function of the peroxisomes in cells?
a) Protein synthesis
b) Lipid synthesis
c) Detoxification of harmful substances
d) ATP production
Which of the following is responsible for the synthesis of ribosomes in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Nucleolus
What is the function of the rough endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis
c) Ribosome assembly
d) ATP production
Which organelle is responsible for the breakdown of fatty acids and the production of hydrogen peroxide in the cell?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Which type of cell junction allows for the rapid exchange of ions and small molecules between adjacent cells?
a) Gap junctions
b) Tight junctions
c) Desmosomes
d) Ribosomes
What is the function of the centrosome in animal cells?
a) Protein synthesis
b) Cell division
c) Photosynthesis
d) Lipid synthesis
Which of the following is NOT a phase of mitosis?
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
What is the role of the nuclear pores in the nuclear envelope?
a) Protein synthesis
b) Regulation of cell entry and exit
c) DNA replication
d) ATP production
Which of the following is responsible for the synthesis of proteins destined for export from the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Which type of cellular transport requires the assistance of carrier proteins?
a) Passive diffusion
b) Facilitated diffusion
c) Osmosis
d) Active transport
What is the function of the nucleoplasm within the nucleus?
a) Storage of genetic material
b) Protein synthesis
c) Ribosome assembly
d) Cellular metabolism and transportation
Which of the following is NOT a component of the cytoskeleton?
a) Microtubules
b) Intermediate filaments
c) Microfilaments
d) Ribosomes
What is the primary function of the lysosomes in cells?
a) Energy production
b) Protein synthesis
c) Cellular digestion
d) ATP production
Which organelle is responsible for the synthesis of carbohydrates in plant cells?
a) Nucleus
b) Mitochondria
c) Chloroplasts
d) Golgi apparatus
Which of the following is responsible for the synthesis of lipids and detoxification of drugs in liver cells?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Smooth endoplasmic reticulum
Which type of cellular transport involves the release of substances from the cell?
a) Pinocytosis
b) Phagocytosis
c) Exocytosis
d) Endocytosis
What is the function of the cytosol in a cell?
a) Protection and support
b) Regulation of cell entry and exit
c) Energy production
d) Cellular metabolism
Which of the following is responsible for the synthesis of ATP in prokaryotic cells?
a) Nucleus
b) Mitochondria
c) Ribosomes
d) Cell membrane
Which organelle is responsible for the synthesis and packaging of lipids in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Which of the following is responsible for the synthesis of ribosomal RNA (rRNA)?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Nucleolus
What is the function of the microvilli in cells?
a) Cell movement
b) Protein synthesis
c) Increased surface area for absorption
d) ATP production
Which of the following is NOT a function of the peroxisomes?
a) Protein synthesis
b) Detoxification of harmful substances
c) Breakdown of fatty acids
d) Hydrogen peroxide production
Which organelle is responsible for the synthesis of steroids in cells?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
What is the function of the nuclear matrix within the nucleus?
a) Storage of genetic material
b) Protein synthesis
c) Ribosome assembly
d) Structural support and organization