Which organelle is responsible for protein synthesis in a cell?
a) Golgi apparatus
b) Mitochondria
c) Ribosomes
d) Lysosomes
Answer: c) Ribosomes
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
Answer: c) Energy production
Which cellular structure contains the cell’s genetic material?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Endoplasmic reticulum
Answer: a) Nucleus
Which of the following is responsible for the breakdown of cellular waste and debris?
a) Lysosomes
b) Ribosomes
c) Vacuoles
d) Centrioles
Answer: a) Lysosomes
Which organelle is known as the “powerhouse” of the cell?
a) Endoplasmic reticulum
b) Nucleus
c) Mitochondria
d) Chloroplasts
Answer: c) Mitochondria
Which of the following is NOT a type of cell junction?
a) Gap junctions
b) Tight junctions
c) Desmosomes
d) Ribosomes
Answer: 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
Answer: d) Sorting and modifying cellular products
Which type of cell division produces gametes (sex cells)?
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: b) Meiosis
Which of the following is NOT a phase of the cell cycle?
a) Interphase
b) Prophase
c) Metaphase
d) Telophase
Answer: 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
Answer: a) Cytoskeleton
What is the site of photosynthesis in plant cells?
a) Nucleus
b) Mitochondria
c) Lysosomes
d) Chloroplasts
Answer: 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
Answer: d) DNA replication
Which organelle is responsible for detoxifying harmful substances in the cell?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Answer: c) Peroxisomes
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
Answer: c) Single circular chromosome
Which type of transport requires energy input from the cell?
a) Passive diffusion
b) Facilitated diffusion
c) Osmosis
d) Active transport
Answer: d) Active transport
Which of the following is NOT a component of the cytoskeleton?
a) Microtubules
b) Intermediate filaments
c) Microfilaments
d) Lysosomes
Answer: d) Lysosomes
What is the function of the centrioles in animal cells?
a) Protein synthesis
b) Cell division
c) Photosynthesis
d) Lipid synthesis
Answer: b) Cell division
What is the role of the nucleolus within the nucleus?
a) Storage of genetic material
b) Protein synthesis
c) Ribosome assembly
d) ATP production
Answer: c) Ribosome assembly
Which of the following is responsible for cell adhesion and maintaining tissue integrity?
a) Gap junctions
b) Tight junctions
c) Desmosomes
d) Ribosomes
Answer: c) Desmosomes
What is the function of the cilia in cells?
a) Cell movement
b) Protein synthesis
c) Lipid synthesis
d) ATP production
Answer: a) Cell movement
Which organelle contains enzymes for intracellular digestion?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Answer: a) Lysosomes
Which of the following is NOT a type of passive transport?
a) Diffusion
b) Osmosis
c) Active transport
d) Facilitated diffusion
Answer: c) Active transport
What is the role of the cell wall in plant cells?
a) Protection and support
b) Protein synthesis
c) ATP production
d) Lipid synthesis
Answer: a) Protection and support
Which organelle is responsible for the synthesis and modification of proteins in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Answer: c) Endoplasmic reticulum
Which of the following is responsible for the synthesis of ATP in eukaryotic cells?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Chloroplasts
Answer: b) Mitochondria
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
Answer: b) Protein synthesis
What is the function of the smooth endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis
c) Ribosome assembly
d) DNA replication
Answer: b) Lipid synthesis
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
Answer: 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
Answer: b) Golgi apparatus
Which of the following is NOT a function of the mitochondria?
a) ATP production
b) Cellular respiration
c) Calcium storage
d) Apoptosis regulation
Answer: c) Calcium storage
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
Answer: b) Diffusion
What is the function of the flagella in cells?
a) Cell movement
b) Protein synthesis
c) Lipid synthesis
d) ATP production
Answer: a) Cell movement
Which organelle is responsible for the synthesis of lipids in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Answer: c) Endoplasmic reticulum
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
Answer: 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
Answer: a) Nucleus
What is the primary function of the ribosomes in cells?
a) Energy production
b) Protein synthesis
c) Lipid synthesis
d) ATP production
Answer: b) Protein synthesis
Which type of cell division is responsible for growth and tissue repair?
a) Mitosis
b) Meiosis
c) Cytokinesis
d) Binary fission
Answer: a) Mitosis
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
Answer: 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
Answer: 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
Answer: b) Phagocytosis
Which organelle is responsible for the detoxification of drugs and harmful substances in liver cells?
a) Lysosomes
b) Ribosomes
c) Peroxisomes
d) Vacuoles
Answer: c) Peroxisomes
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
Answer: 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
Answer: 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
Answer: 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
Answer: d) Vacuoles
Which type of cellular transport involves the movement of water across a semipermeable membrane?
a) Pinocytosis
b) Phagocytosis
c) Exocytosis
d) Osmosis
Answer: 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
Answer: c) Detoxification of harmful substances
Which of the following is responsible for the synthesis of ribosomes in the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Nucleolus
Answer: d) Nucleolus
What is the function of the rough endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis
c) Ribosome assembly
d) ATP production
Answer: a) Protein synthesis
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
Answer: c) Peroxisomes
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
Answer: a) Gap junctions
What is the function of the centrosome in animal cells?
a) Protein synthesis
b) Cell division
c) Photosynthesis
d) Lipid synthesis
Answer: b) Cell division
Which of the following is NOT a phase of mitosis?
a) Prophase
b) Metaphase
c) Anaphase
d) Telophase
Answer: 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
Answer: b) Regulation of cell entry and exit
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
Answer: c) Endoplasmic reticulum
Which type of cellular transport requires the assistance of carrier proteins?
a) Passive diffusion
b) Facilitated diffusion
c) Osmosis
d) Active transport
Answer: b) Facilitated diffusion
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
Answer: 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
Answer: d) Ribosomes
What is the primary function of the lysosomes in cells?
a) Energy production
b) Protein synthesis
c) Cellular digestion
d) ATP production
Answer: c) Cellular digestion
Which organelle is responsible for the synthesis of carbohydrates in plant cells?
a) Nucleus
b) Mitochondria
c) Chloroplasts
d) Golgi apparatus
Answer: c) Chloroplasts
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
Answer: 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
Answer: c) Exocytosis
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
Answer: 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
Answer: 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
Answer: c) Endoplasmic reticulum
Which of the following is responsible for the synthesis of ribosomal RNA (rRNA)?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Nucleolus
Answer: 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
Answer: c) Increased surface area for absorption
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
Answer: a) Protein synthesis
Which organelle is responsible for the synthesis of steroids in cells?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
Answer: c) Endoplasmic reticulum
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
Answer: d) Structural support and organization
Which of the following is responsible for the synthesis of proteins that are destined for secretion from the cell?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Lysosomes
