Plant and Animal Cell
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Some Important MCQs on the discovery related to the Cell and Cell organelles. Q1. Who is credited with the discovery of the cell? a) Louis Pasteur Answer: b) Robert Hooke Q2. Who first observed living cells under a microscope? a) Robert Hooke Answer: b) Antonie van Leeuwenhoek Q3. Which scientists are associated with the development of the cell theory? a) Louis Pasteur and Robert Hooke Answer: c) Matthias Schleiden and Theodor Schwann Q4. Who proposed that all cells arise from pre-existing cells? a) Matthias Schleiden Answer: c) Rudolf Virchow Q5. Who discovered the nucleus in plant cells? a) Robert Hooke Answer: c) Robert Brown Q6. Who is credited with the discovery of the Golgi apparatus? a) Camillo Golgi Answer: a) Camillo Golgi Q7. Who first observed mitochondria? a) Richard Altmann Answer: b) Albert von Kölliker Q8. Who discovered lysosomes and peroxisomes? a) George Palade Answer: c) Christian de Duve Q9. Who is known for the discovery of ribosomes? a) Albert Claude Answer: b) George Palade Q10. Who first described the endoplasmic reticulum? a) Camillo Golgi Answer: b) Keith Porter Q11. Who proposed the cell theory along with Matthias Schleiden? a) Theodor Schwann Answer: a) Theodor Schwann Q12. Who discovered the structure of the plasma membrane as a lipid bilayer? a) Gorter and Grendel Answer: a) Gorter and Grendel Q13. Who developed the fluid mosaic model of the cell membrane? a) Gorter and Grendel Answer: b) Singer and Nicolson Q14. Who first observed the Golgi apparatus and with what technique? a) Robert Brown with light microscopy Answer: b) Camillo Golgi with silver staining Q15. Who discovered that all plants are made up of cells? a) Theodor Schwann Answer: b) Matthias Schleiden Q16. Who is credited with the discovery of the vacuole? a) Robert Brown Answer: b) Antonie van Leeuwenhoek Q17. Who discovered the concept of the “cell” by observing cork cells under a microscope? a) Robert Hooke Answer: a) Robert Hooke Q18. Who discovered the centriole? a) Camillo Golgi Answer: b) Boveri and Van Beneden Q19. Who discovered chloroplasts and their role in photosynthesis? a) Robert Hooke Answer: c) Julius von Sachs Q20. Who discovered the centrosome? a) Robert Hooke Answer: b) Theodor Boveri Q21. Who discovered microtubules? a) Keith Porter and Albert Claude Answer: a) Keith Porter and Albert Claude Q22. Who discovered the cytoskeleton and its components? a) Albert Claude, Keith Porter, and George Palade Answer: a) Albert Claude, Keith Porter, and George Palade Q23. Who discovered the smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER)? a) Albert Claude and Keith Porter Answer: a) Albert Claude and Keith Porter Q24. Who discovered the concept of cell theory, which includes the idea that cells are the basic unit of life? a) Robert Hooke Answer: c) Matthias Schleiden and Theodor Schwann Q25. Who discovered the function of the lysosome in intracellular digestion? a) George Palade Answer: c) Christian de Duve Q26. Who discovered the double helix structure of DNA, which is stored in the nucleus of the cell? a) James Watson and Francis Crick Answer: a) James Watson and Francis Crick Q27. Who discovered that mitochondria have their own DNA and can replicate independently of the cell? a) George Palade Answer: b) Lynn Margulis Q28. Who first used the term “cell” to describe the basic unit of life? a) Antonie van Leeuwenhoek Answer: b) Robert Hooke Q29. Who discovered the cell membrane’s fluid mosaic model? a) Gorter and Grendel Answer: b) Singer and Nicolson Q30. Who discovered the presence of ribosomal RNA in the ribosomes? a) George Palade Answer: a) George Palade Q31. Who is known for discovering the vacuole in plant cells? a) Robert Hooke Answer: b) Antonie van Leeuwenhoek Q32. Who is credited with the discovery of the chromatin network inside the nucleus? a) Walther Flemming Answer: a) Walther Flemming Q33. Who discovered the role of the nucleolus in ribosome production? a) Robert Brown Answer: c) George Palade Q34. Who first described the lysosomal storage diseases? a) George Palade Answer: b) Christian de Duve |
Q1. What is the basic unit of life?
a) Atom
b) Molecule
c) Cell
d) Tissue
Answer: c) Cell
Q2. Who coined the term ‘cell‘?
a) Anton van Leeuwenhoek
b) Robert Hooke
c) Matthias Schleiden
d) Theodor Schwann
Answer: b) Robert Hooke
Q3. Which of the following is not a type of cell?
a) Prokaryotic
b) Eukaryotic
c) Viral
d) Mycotic
Answer: c) Viral
Q4. Which structure is responsible for controlling the activities of a cell?
a) Cytoplasm
b) Nucleus
c) Mitochondria
d) Ribosome
Answer: b) Nucleus
Q5. What is the function of the ribosome?
a) Energy production
b) Protein synthesis
c) DNA replication
d) Lipid synthesis
Answer: b) Protein synthesis
Q6. Which organelle is known as the powerhouse of the cell?
a) Chloroplast
b) Golgi apparatus
c) Mitochondria
d) Endoplasmic reticulum
Answer: c) Mitochondria
Q7. What is the main component of the cell membrane?
a) Nucleic acids
b) Proteins
c) Lipids
d) Carbohydrates
Answer: c) Lipids
Q8. Which organelle is responsible for photosynthesis?
a) Mitochondria
b) Chloroplast
c) Ribosome
d) Lysosome
Answer: b) Chloroplast
Q9. Which of the following structures is found in plant cells but not in animal cells?
a) Nucleus
b) Mitochondria
c) Cell wall
d) Ribosomes
Answer: c) Cell wall
Q10. What is the function of the Golgi apparatus?
a) Protein synthesis
b) Protein modification and sorting
c) Energy production
d) Lipid synthesis
Answer: b) Protein modification and sorting
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Q11. Which structure is involved in cell division?
a) Nucleus
b) Mitochondria
c) Centrioles
d) Lysosome
Answer: c) Centrioles
Q12. What is the primary function of lysosomes?
a) Protein synthesis
b) Waste breakdown and disposal
c) Lipid synthesis
d) Energy production
Answer: b) Waste breakdown and disposal
Q13. What is the fluid matrix inside the cell called?
a) Cytoplasm
b) Nucleoplasm
c) Endoplasm
d) Exoplasm
Answer: a) Cytoplasm
Q14. Which organelle is responsible for detoxifying harmful substances?
a) Golgi apparatus
b) Lysosome
c) Smooth endoplasmic reticulum
d) Mitochondria
Answer: c) Smooth endoplasmic reticulum
Q15. Where are chromosomes located?
a) Cytoplasm
b) Nucleus
c) Ribosomes
d) Endoplasmic reticulum
Answer: b) Nucleus
Q16. Which of the following is a function of the cell membrane?
a) Protecting the cell’s DNA
b) Controlling the movement of substances in and out of the cell
c) Producing energy for the cell
d) Storing genetic information
Answer: b) Controlling the movement of substances in and out of the cell
Q17. What are the building blocks of proteins?
a) Nucleotides
b) Amino acids
c) Monosaccharides
d) Fatty acids
Answer: b) Amino acids
Q18. What is the primary role of mitochondria in cells?
a) Synthesizing proteins
b) Producing ATP
c) Digesting waste materials
d) Replicating DNA
Answer: b) Producing ATP
Q19. Which cell organelle contains digestive enzymes?
a) Lysosome
b) Ribosome
c) Nucleus
d) Golgi apparatus
Answer: a) Lysosome
Q20. What is the double-layered membrane surrounding the nucleus called?
a) Cell wall
b) Nuclear envelope
c) Plasma membrane
d) Endoplasmic reticulum
Answer: b) Nuclear envelope
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Q21. What is the site of cellular respiration?
a) Chloroplast
b) Ribosome
c) Mitochondria
d) Lysosome
Answer: c) Mitochondria
Q22. In which organelle does protein synthesis occur?
a) Mitochondria
b) Golgi apparatus
c) Ribosome
d) Nucleus
Answer: c) Ribosome
Q23. What is the function of the cytoskeleton?
a) Providing structural support to the cell
b) Synthesizing proteins
c) Storing genetic information
d) Producing energy
Answer: a) Providing structural support to the cell
Q24. Which of the following is a characteristic of prokaryotic cells?
a) Presence of a nucleus
b) Presence of membrane-bound organelles
c) Absence of a nucleus
d) Larger size compared to eukaryotic cells
Answer: c) Absence of a nucleus
Q25. Which of the following organelles is involved in lipid synthesis?
a) Rough endoplasmic reticulum
b) Smooth endoplasmic reticulum
c) Mitochondria
d) Lysosome
Answer: b) Smooth endoplasmic reticulum
Q26. What is the genetic material in cells made of?
a) Proteins
b) Lipids
c) DNA
d) Carbohydrates
Answer: c) DNA
Q27. Where are ribosomes typically found in a cell?
a) Nucleus
b) Cytoplasm and rough endoplasmic reticulum
c) Golgi apparatus
d) Mitochondria
Answer: b) Cytoplasm and rough endoplasmic reticulum
Q28. What structure separates the contents of the nucleus from the cytoplasm?
a) Cell membrane
b) Nuclear envelope
c) Endoplasmic reticulum
d) Golgi apparatus
Answer: b) Nuclear envelope
Q29. Which type of cell has a cell wall?
a) Animal cell
b) Plant cell
c) Fungal cell
d) Both b and c
Answer: d) Both b and c
Q30. What is the main function of chloroplasts?
a) Cellular respiration
b) Photosynthesis
c) Protein synthesis
d) Detoxification
Answer: b) Photosynthesis
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Q31. What is the jelly-like substance inside a cell called?
a) Cytoplasm
b) Nucleoplasm
c) Endoplasm
d) Exoplasm
Answer: a) Cytoplasm
Q32. Which of the following is a component of the cytoskeleton?
a) Microtubules
b) Ribosomes
c) Mitochondria
d) Golgi apparatus
Answer: a) Microtubules
Q33. What structure is involved in the synthesis of ribosomal RNA (rRNa)?
a) Golgi apparatus
b) Nucleolus
c) Endoplasmic reticulum
d) Mitochondria
Answer: b) Nucleolus
Q34. What are the energy-carrying molecules produced during cellular respiration?
a) NADPH
b) ATP
c) ADP
d) AMP
Answer: b) ATP
Q35. What is the primary function of the smooth endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis and detoxification
c) DNA replication
d) Cellular respiration
Answer: b) Lipid synthesis and detoxification
Q36. Which of the following structures is found in both prokaryotic and eukaryotic cells?
a) Nucleus
b) Mitochondria
c) Ribosome
d) Golgi apparatus
Answer: c) Ribosome
Q37. What is the process by which a cell divides into two daughter cells called?
a) Meiosis
b) Mitosis
c) Binary fission
d) Budding
Answer: b) Mitosis
Q38. What type of cell has a nucleus?
a) Prokaryotic cell
b) Eukaryotic cell
c) Bacterial cell
d) Viral cell
Answer: b) Eukaryotic cell
Q39. Which structure is primarily responsible for cell movement?
a) Golgi apparatus
b) Endoplasmic reticulum
c) Cytoskeleton
d) Mitochondria
Answer: c) Cytoskeleton
Q40. What is the site of protein modification and packaging?
a) Ribosome
b) Nucleus
c) Golgi apparatus
d) Lysosome
Answer: c) Golgi apparatus
Q41. Which organelle contains its own DNA and ribosomes?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Lysosome
Answer: b) Mitochondria
Q42. What process occurs in the chloroplasts?
a) Glycolysis
b) Photosynthesis
c) Fermentation
d) Krebs cycle
Answer: b) Photosynthesis
Q43. What is the network of protein filaments that helps the cell maintain its shape?
a) Cytoskeleton
b) Cytoplasm
c) Endoplasmic reticulum
d) Nucleolus
Answer: a) Cytoskeleton
Q44. Which phase of the cell cycle is characterized by DNA replication?
a) GQ1 phase
b) S phase
c) GQ2 phase
d) M phase
Answer: b) S phase
Q45. What is the semi-permeable membrane surrounding the cell called?
a) Nuclear envelope
b) Cell wall
c) Plasma membrane
d) Cytoplasm
Answer: c) Plasma membrane
Q46. Which of the following is not a component of the endomembrane system?
a) Endoplasmic reticulum
b) Golgi apparatus
c) Lysosome
d) Mitochondria
Answer: d) Mitochondria
Q47. What structure acts as a selective barrier, regulating the passage of materials into and out of the cell?
a) Cell wall
b) Plasma membrane
c) Nucleus
d) Ribosome
Answer: b) Plasma membrane
Q48. Which of the following organelles is involved in energy production in animal cells?
a) Chloroplast
b) Ribosome
c) Golgi apparatus
d) Mitochondria
Answer: d) Mitochondria
Q49. What are the tiny structures that perform various functions within the cell called?
a) Cells
b) Tissues
c) Organs
d) Organelles
Answer: d) Organelles
Q50. Which cell organelle plays a role in intracellular digestion?
a) Mitochondria
b) Lysosome
c) Golgi apparatus
d) Ribosome
Answer: b) Lysosome
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Q51. What is the role of the nucleolus?
a) DNA replication
b) RNA synthesis
c) Protein synthesis
d) Lipid synthesis
Answer: b) RNA synthesis
Q52. Which of the following processes is used by cells to take in large particles by engulfing them?
a) Exocytosis
b) Endocytosis
c) Diffusion
d) Osmosis
Answer: b) Endocytosis
Q53. Which of the following structures is present in both plant and animal cells?
a) Cell wall
b) Chloroplast
c) Mitochondria
d) Central vacuole
Answer: c) Mitochondria
Q54. What is the primary function of the rough endoplasmic reticulum?
a) Protein synthesis
b) Lipid synthesis
c) Carbohydrate metabolism
d) ATP production
Answer: a) Protein synthesis
Q55. Which type of cell division results in the formation of two genetically identical daughter cells?
a) Meiosis
b) Binary fission
c) Mitosis
d) Budding
Answer: c) Mitosis
Q56. Which of the following is a characteristic of eukaryotic cells?
a) Lack of a nucleus
b) Presence of membrane-bound organelles
c) Smaller size than prokaryotic cells
d) Circular DNA
Answer: b) Presence of membrane-bound organelles
Q57. Which of the following organelles is involved in the modification and transport of proteins?
a) Golgi apparatus
b) Ribosome
c) Lysosome
d) Chloroplast
Answer: a) Golgi apparatus
Q58. What is the main difference between smooth and rough endoplasmic reticulum?
a) Presence of DNA
b) Presence of ribosomes
c) Type of lipids synthesized
d) Function in the cell
Answer: b) Presence of ribosomes
Q59. What is the process by which cells release energy from glucose?
a) Photosynthesis
b) Glycolysis
c) Fermentation
d) Osmosis
Answer: b) Glycolysis
Q60. What is the liquid component of the cytoplasm called?
a) Cytosol
b) Cytoskeleton
c) Nucleoplasm
d) Endoplasm
Answer: a) Cytosol
Q61. Which of the following structures helps in cell division in animal cells?
a) Nucleolus
b) Centrioles
c) Lysosomes
d) Ribosomes
Answer: b) Centrioles
Q62. What is the process of programmed cell death called?
a) Apoptosis
b) Necrosis
c) Mitosis
d) Meiosis
Answer: a) Apoptosis
Q63. Which organelle is responsible for producing ribosomes?
a) Nucleus
b) Nucleolus
c) Mitochondria
d) Golgi apparatus
Answer: b) Nucleolus
Q64. What is the site of lipid and steroid hormone synthesis in the cell?
a) Rough endoplasmic reticulum
b) Smooth endoplasmic reticulum
c) Golgi apparatus
d) Lysosome
Answer: b) Smooth endoplasmic reticulum
Q65. Which of the following structures are involved in protein synthesis?
a) Mitochondria and chloroplasts
b) Ribosomes and endoplasmic reticulum
c) Golgi apparatus and lysosomes
d) Nucleus and cytoskeleton
Answer: b) Ribosomes and endoplasmic reticulum
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Q66. Which type of RNA carries the genetic code from the DNA to the ribosome?
a) rRNA
b) tRNA
c) mRNA
d) siRNA
Answer: c) mRNA
Q67. What is the term for the movement of water across a semi-permeable membrane?
a) Diffusion
b) Osmosis
c) Active transport
d) Facilitated diffusion
Answer: b) Osmosis
Q68. Which organelle is involved in detoxifying harmful substances?
a) Rough endoplasmic reticulum
b) Smooth endoplasmic reticulum
c) Mitochondria
d) Ribosomes
Answer: b) Smooth endoplasmic reticulum
Q69. What is the dense region of the nucleus where ribosomal RNA is synthesized?
a) Chromatin
b) Nucleolus
c) Nuclear envelope
d) Cytoplasm
Answer: b) Nucleolus
Q70. What is the function of mitochondria in eukaryotic cells?
a) Photosynthesis
b) Cellular respiration
c) Protein synthesis
d) Lipid synthesis
Answer: b) Cellular respiration
Q71. Which organelle modifies, sorts, and packages proteins for secretion?
a) Ribosome
b) Endoplasmic reticulum
c) Golgi apparatus
d) Mitochondria
Answer: c) Golgi apparatus
Q72. What is the name of the process by which cells take in fluids by forming vesicles?
a) Phagocytosis
b) Pinocytosis
c) Exocytosis
d) Endocytosis
Answer: b) Pinocytosis
Q73. What is the term for the network of membranes involved in protein and lipid synthesis?
a) Cytoskeleton
b) Endoplasmic reticulum
c) Golgi apparatus
d) Mitochondria
Answer: b) Endoplasmic reticulum
Q74. What structure do plant cells have that animal cells do not?
a) Nucleus
b) Mitochondria
c) Cell wall
d) Ribosomes
Answer: c) Cell wall
Q75. Which type of cell lacks a membrane-bound nucleus?
a) Eukaryotic cell
b) Prokaryotic cell
c) Plant cell
d) Animal cell
Answer: b) Prokaryotic cell
Q76. What is the primary function of chlorophyll in chloroplasts?
a) Cellular respiration
b) ATP synthesis
c) Absorbing light energy for photosynthesis
d) Protein synthesis
Answer: c) Absorbing light energy for photosynthesis
Q77. What is the main function of vacuoles in plant cells?
a) Photosynthesis
b) Protein synthesis
c) Storage of nutrients and waste products
d) Cellular respiration
Answer: c) Storage of nutrients and waste products
Q78. Which type of cell junction allows the passage of ions and small molecules between adjacent cells?
a) Tight junctions
b) Gap junctions
c) Desmosomes
d) Plasmodesmata
Answer: b) Gap junctions
Q79. What is the primary role of peroxisomes in cells?
a) Photosynthesis
b) Protein synthesis
c) Breakdown of fatty acids and detoxification
d) Cellular respiration
Answer: c) Breakdown of fatty acids and detoxification
Q80. What is the main function of the cytoskeleton?
a) Protein synthesis
b) Providing structural support
c) ATP production
d) DNA replication
Answer: b) Providing structural support
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Q81. Which of the following structures are involved in protein synthesis?
a) Mitochondria and chloroplasts
b) Ribosomes and endoplasmic reticulum
c) Golgi apparatus and lysosomes
d) Nucleus and cytoskeleton
Answer: b) Ribosomes and endoplasmic reticulum
Q82. What is the function of messenger RNA (mRNa) in cells?
a) Synthesizing proteins
b) Transferring amino acids
c) Carrying genetic information from DNA to the ribosome
d) Storing genetic information
Answer: c) Carrying genetic information from DNA to the ribosome
Q83. What is the name of the process by which cells secrete large molecules by vesicle fusion with the plasma membrane?
a) Endocytosis
b) Exocytosis
c) Phagocytosis
d) Pinocytosis
Answer: b) Exocytosis
Q84. Which type of cell contains a large central vacuole?
a) Animal cell
b) Plant cell
c) Bacterial cell
d) Fungal cell
Answer: b) Plant cell
Q85. What is the function of the centrioles in animal cells?
a) Photosynthesis
b) Protein synthesis
c) Organizing microtubules during cell division
d) Cellular respiration
Answer: c) Organizing microtubules during cell division
Q86. What is the role of ATP in cellular activities?
a) Genetic information storage
b) Structural support
c) Energy currency
d) Protein synthesis
Answer: c) Energy currency
Q87. Which organelle is responsible for assembling amino acids into proteins?
a) Ribosome
b) Nucleus
c) Mitochondria
d) Lysosome
Answer: a) Ribosome
Q88. What is the process by which a cell engulfs a solid particle to form an internal vesicle called?
a) Phagocytosis
b) Pinocytosis
c) Exocytosis
d) Endocytosis
Answer: a) Phagocytosis
Q89. Which of the following structures is involved in energy production in plant cells?
a) Chloroplast
b) Ribosome
c) Golgi apparatus
d) Lysosome
Answer: a) Chloroplast
Q90. What is the primary function of the plasma membrane?
a) DNA replication
b) Protein synthesis
c) Regulating the movement of substances in and out of the cell
d) Cellular respiration
Answer: c) Regulating the movement of substances in and out of the cell
Q91. Which organelle is the site of cellular respiration?
a) Chloroplast
b) Ribosome
c) Mitochondria
d) Lysosome
Answer: c) Mitochondria
Q92. Which type of RNA is involved in carrying amino acids to the ribosome during protein synthesis?
a) rRNA
b) tRNA
c) mRNA
d) siRNA
Answer: b) tRNA
Q93. What is the term for the diffusion of water across a semi-permeable membrane?
a) Osmosis
b) Diffusion
c) Active transport
d) Facilitated diffusion
Answer: a) Osmosis
Q94. What is the name of the process by which cells release energy in the absence of oxygen?
a) Photosynthesis
b) Fermentation
c) Cellular respiration
d) Glycolysis
Answer: b) Fermentation
Q95. Which of the following organelles is involved in protein packaging and distribution?
a) Ribosome
b) Nucleus
c) Golgi apparatus
d) Lysosome
Answer: c) Golgi apparatus
Q96. What is the function of transfer RNA (tRNa) in cells?
a) Synthesizing proteins
b) Transferring amino acids to the ribosome
c) Carrying genetic information from DNA to the ribosome
d) Storing genetic information
Answer: b) Transferring amino acids to the ribosome
Q97. What is the primary role of mitochondria in cells?
a) Synthesizing proteins
b) Producing ATP
c) Digesting waste materials
d) Replicating DNA
Answer: b) Producing ATP
Q98. Which structure separates the contents of the nucleus from the cytoplasm?
a) Cell membrane
b) Nuclear envelope
c) Endoplasmic reticulum
d) Golgi apparatus
Answer: b) Nuclear envelope
Q99. What is the main function of chloroplasts?
a) Cellular respiration
b) Photosynthesis
c) Protein synthesis
d) Detoxification
Answer: b) Photosynthesis
Q100. Which of the following structures helps in cell division in plant cells?
a) Nucleolus
b) Centrioles
c) Cell plate
d) Ribosomes
Answer: c) Cell plate
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Q101. What is the largest cell in the human body?
a) Red blood cell
b) Nerve cell
c) Ovum (egg cell)
d) Skin cell
Answer: c) Ovum (egg cell)
Q102. Which of the following is the longest cell in the human body?
a) Muscle cell
b) Nerve cell
c) Liver cell
d) Red blood cell
Answer: b) Nerve cell
Q103. Among plants, where are the largest cells typically found?
a) Roots
b) Stem
c) Leaves
d) Flowers
Answer: c) Leaves
Q104. What is one of the smallest known bacteria?
a) Escherichia coli (E. coli)
b) Bacillus anthracis
c) Mycoplasma
d) Streptococcus
Answer: c) Mycoplasma
Q105. In animals, which cells are among the largest?
a) Skin cells
b) Liver cells
c) Muscle cells
d) Ovum (egg cell)
Answer: d) Ovum (egg cell)
Q106. What is the approximate size of the largest cell in the human body, the ovum (egg cell)?
a) 0.1 mm
b) 1 cm
c) 0.2 mm
d) 1 mm
Answer: c) 0.2 mm
Q107. Which of the following is the approximate length of the longest cell in the human body, the neuron?
a) 1 meter
b) 1 centimeter
c) 1 kilometer
d) 10 meters
Answer: a) 1 meter
Q108. What is the approximate size of one of the smallest known bacteria, Mycoplasma?
a) 10 micrometers
b) 0.2 micrometers
c) 1 micrometer
d) 100 micrometers
Answer: b) 0.2 micrometers
Q109. What is the largest cell in the world?
a) Ostrich egg
b) Blue whale nerve cell
c) Titan arum plant cell
d) African elephant egg
Answer: a) Ostrich egg
Q110. What is the approximate size of the largest cell, the ostrich egg?
a) 1 cm in length
b) 5 cm in length
c) 10 cm in length
d) 15 cm in length
Answer: d) 15 cm in length
The ostrich egg is one of the largest cells in the world, with a length of around 15 cm and a diameter of about 13 cm.
Q111. What is the smallest cell in the human body?
a) Red blood cell
b) Nerve cell
c) Sperm cell
d) Platelet
Answer: c) Sperm cell
Sperm cells are the smallest cells in the human body, typically measuring about 5 micrometers in diameter.
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