Cell biology Top 100 MCQ
The nucleus of a cell contains:
a) DNA and RNA
b) Proteins and lipids
c) Ribosomes and mitochondria
d) Chloroplasts and vacuoles
Answer: a) DNA and RNA
Which of the following is NOT a function of the cell membrane?
a) Regulation of nutrient transport
b) Protection of the cell
c) Cell-cell communication
d) DNA replication
Answer: d) DNA replication
The site of protein synthesis in a cell is:
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Ribosomes
Answer: d) Ribosomes
The energy currency of the cell is:
a) ATP
b) ADP
c) GTP
d) UDP
Answer: a) ATP
Which organelle is responsible for the breakdown of cellular waste and debris?
a) Nucleus
b) Lysosome
c) Endoplasmic reticulum
d) Golgi apparatus
Answer: b) Lysosome
The process by which cells engulf external particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: d) Phagocytosis
Which organelle is responsible for cellular respiration?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosome
Answer: b) Mitochondria
Which of the following is NOT a type of cell junction?
a) Tight junction
b) Gap junction
c) Desmosomes
d) Smooth junction
Answer: d) Smooth junction
Which of the following is responsible for the synthesis of proteins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The process by which cells divide and reproduce is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: a) Mitosis
Which organelle is responsible for the synthesis and packaging of lipids?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The structure that provides support and shape to a plant cell is called:
a) Cell wall
b) Cell membrane
c) Cytoskeleton
d) Nucleus
Answer: a) Cell wall
The organelle that contains enzymes for intracellular digestion is:
a) Nucleus
b) Mitochondria
c) Lysosome
d) Golgi apparatus
Answer: c) Lysosome
The process by which plants convert sunlight into chemical energy is called:
a) Photosynthesis
b) Cellular respiration
c) Fermentation
d) Oxidative phosphorylation
Answer: a) Photosynthesis
Which of the following is NOT a type of cytoskeleton fiber?
a) Microtubules
b) Microfilaments
c) Intermediate filaments
d) Centrioles
Answer: d) Centrioles
The process by which water moves across a semi-permeable membrane from an area of high concentration to low concentration is called:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: b) Osmosis
The process by which cells release substances out of the cell is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: b) Exocytosis
Which of the following is responsible for the synthesis of ribosomes?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells replicate their DNA and divide into two daughter cells is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: a) Mitosis
Which of the following is responsible for the production of ATP in cellular respiration?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosome
Answer: b) Mitochondria
Which organelle is responsible for modifying, sorting, and packaging proteins for transport?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: c) Golgi apparatus
The fluid-filled space within a cell that holds various organelles is called the:
a) Cytoplasm
b) Nucleus
c) Cell membrane
d) Golgi apparatus
Answer: a) Cytoplasm
Which organelle is responsible for storing genetic information in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: a) Nucleus
The process by which cells break down glucose to produce energy is called:
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Oxidative phosphorylation
Answer: a) Glycolysis
The organelle responsible for the synthesis of ribosomes is called the:
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf fluids and dissolved particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: c) Pinocytosis
Which organelle is responsible for converting light energy into chemical energy in plant cells?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosome
Answer: c) Chloroplast
Which of the following is responsible for the production and transport of proteins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The process by which cells obtain energy in the absence of oxygen is called:
a) Photosynthesis
b) Glycolysis
c) Fermentation
d) Oxidative phosphorylation
Answer: c) Fermentation
The structure that separates the contents of a cell from its external environment is called the:
a) Cell wall
b) Cell membrane
c) Cytoskeleton
d) Nucleus
Answer: b) Cell membrane
Which of the following is responsible for the synthesis of lipids and detoxification of drugs in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The process by which cells divide to produce sex cells with half the number of chromosomes is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: b) Meiosis
The process by which cells move from an area of lower concentration to higher concentration using energy is called:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: c) Active transport
Which of the following is NOT a type of membrane transport?
a) Diffusion
b) Osmosis
c) Endocytosis
d) Exocytosis
Answer: c) Endocytosis
The process by which cells release energy from glucose in the presence of oxygen is called:
a) Photosynthesis
b) Glycolysis
c) Cellular respiration
d) Oxidative phosphorylation
Answer: c) Cellular respiration
Which of the following is NOT a component of the endomembrane system?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: a) Nucleus
The process by which cells replicate their DNA in preparation for cell division is called:
a) Replication
b) Transcription
c) Translation
d) Duplication
Answer: a) Replication
The organelle responsible for the synthesis of proteins destined for export is the:
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The process by which cells engulf solid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: d) Phagocytosis
Which of the following is NOT a function of the cytoskeleton?
a) Cell shape and support
b) Cell movement
c) Intracellular transport
d) DNA replication
Answer: d) DNA replication
The process by which cells divide cytoplasm and organelles between two daughter cells is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: c) Cytokinesis
Which organelle is responsible for the synthesis of ATP through oxidative phosphorylation?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosome
Answer: b) Mitochondria
Which of the following is responsible for the synthesis and packaging of proteins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The process by which cells break down glucose to produce energy in the absence of oxygen is called:
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Fermentation
Answer: d) Fermentation
The organelle responsible for photosynthesis in plant cells is the:
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosome
Answer: c) Chloroplast
Which of the following organelles is responsible for the detoxification of drugs and toxins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Endoplasmic reticulum
The process by which cells move molecules from an area of higher concentration to lower concentration without the use of energy is called:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: a) Diffusion
Which organelle is responsible for the production of ribosomes?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf and ingest liquid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: c) Pinocytosis
Which of the following organelles is responsible for the storage of genetic information in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: a) Nucleus
Which of the following organelles is responsible for the synthesis of proteins?
a) Nucleus
b) Ribosomes
c) Golgi apparatus
d) Lysosomes
Answer: b) Ribosomes
The process by which cells convert glucose into ATP is known as:
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Oxidative phosphorylation
Answer: d) Oxidative phosphorylation
The process of cell division in which a parent cell divides into two identical daughter cells is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: a) Mitosis
Which organelle is responsible for the synthesis of lipids and detoxification of drugs?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process of cellular respiration takes place in which organelle?
a) Nucleus
b) Mitochondria
c) Chloroplasts
d) Ribosomes
Answer: b) Mitochondria
The movement of molecules from an area of higher concentration to an area of lower concentration is known as:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: a) Diffusion
Which of the following organelles is responsible for cellular digestion and waste removal?
a) Nucleus
b) Mitochondria
c) Lysosomes
d) Golgi apparatus
Answer: c) Lysosomes
The structure that provides support and shape to a plant cell is called the:
a) Cell wall
b) Cell membrane
c) Cytoskeleton
d) Nucleus
Answer: a) Cell wall
Which of the following is responsible for the synthesis and packaging of proteins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process of DNA replication takes place during:
a) Interphase
b) Prophase
c) Metaphase
d) Anaphase
Answer: a) Interphase
The structure responsible for organizing microtubules and assisting in cell division is called the:
a) Nucleus
b) Centrosome
c) Golgi apparatus
d) Lysosomes
Answer: b) Centrosome
Which of the following is responsible for the synthesis of ribosomes?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf and internalize solid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: d) Phagocytosis
Which of the following organelles is responsible for the production of ATP through oxidative phosphorylation?
a) Nucleus
b) Mitochondria
c) Chloroplasts
d) Ribosomes
Answer: b) Mitochondria
The process by which cells take in external fluids and dissolved solutes is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: c) Pinocytosis
Which of the following organelles is responsible for the synthesis of proteins that are exported from the cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process by which cells release substances outside of the cell is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: b) Exocytosis
The fluid-filled space within a cell that holds various organelles is called the:
a) Cytoplasm
b) Nucleus
c) Cell membrane
d) Golgi apparatus
Answer: a) Cytoplasm
Which organelle is responsible for storing genetic information in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: a) Nucleus
The process by which cells break down glucose into pyruvate is known as:
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Oxidative phosphorylation
Answer: a) Glycolysis
The organelle responsible for the synthesis of ribosomes is called the:
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf and ingest foreign particles, such as bacteria, is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: d) Phagocytosis
Which organelle is responsible for converting light energy into chemical energy in plant cells?
a) Nucleus
b) Mitochondria
c) Chloroplasts
d) Ribosomes
Answer: c) Chloroplasts
Which of the following is responsible for the production and transport of proteins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process by which cells divide to produce sex cells with half the number of chromosomes is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: b) Meiosis
The process by which cells move from an area of lower concentration to higher concentration using energy is called:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: c) Active transport
Which of the following is NOT a type of membrane transport?
a) Diffusion
b) Osmosis
c) Endocytosis
d) Exocytosis
Answer: c) Endocytosis
The process by which cells release energy from glucose in the presence of oxygen is called:
a) Photosynthesis
b) Glycolysis
c) Cellular respiration
d) Oxidative phosphorylation
Answer: c) Cellular respiration
Which organelle is responsible for the synthesis and packaging of proteins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process by which cells divide cytoplasm and organelles between two daughter cells is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: c) Cytokinesis
Which of the following is NOT a component of the endomembrane system?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: a) Nucleus
The process by which cells replicate their DNA in preparation for cell division is called:
a) Replication
b) Transcription
c) Translation
d) Duplication
Answer: a) Replication
The organelle responsible for the synthesis of proteins destined for export is the:
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process by which cells engulf solid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: d) Phagocytosis
Which of the following is NOT a function of the cytoskeleton?
a) Cell shape and support
b) Cell movement
c) Intracellular transport
d) DNA replication
Answer: d) DNA replication
The process by which cells divide cytoplasm and organelles between two daughter cells is called:
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: c) Cytokinesis
Which organelle is responsible for the production of ribosomes?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf and ingest liquid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: c) Pinocytosis
Which of the following organelles is responsible for the storage of genetic information in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: a) Nucleus
The process by which cells break down glucose to produce energy in the absence of oxygen is called:
a) Glycolysis
b) Krebs cycle
c) Electron transport chain
d) Fermentation
Answer: d) Fermentation
The organelle responsible for photosynthesis in plant cells is the:
a) Nucleus
b) Mitochondria
c) Chloroplasts
d) Ribosomes
Answer: c) Chloroplasts
Which of the following organelles is responsible for the detoxification of drugs and toxins in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: b) Endoplasmic reticulum
The process by which cells move molecules from an area of higher concentration to lower concentration without the use of energy is called:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: a) Diffusion
Which organelle is responsible for the production of ribosomes?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf and ingest liquid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: c) Pinocytosis
Which of the following organelles is responsible for the storage of genetic information in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: a) Nucleus
The process by which cells move molecules from an area of higher concentration to lower concentration without the use of energy is called:
a) Diffusion
b) Osmosis
c) Active transport
d) Endocytosis
Answer: a) Diffusion
Which organelle is responsible for the production of ribosomes?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Nucleolus
Answer: d) Nucleolus
The process by which cells engulf and ingest liquid particles is called:
a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
Answer: c) Pinocytosis
Which of the following organelles is responsible for the storage of genetic information in a cell?
a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes
Answer: a) Nucleus
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