Quiz for Cell theory

Q1: Who proposed the cell theory?

A. Schwann and Schleiden B. Robert Hooke and Leeuwenhoek C. Watson and Crick D. Virchow and Schleiden

Q2: According to cell theory, all living organisms are composed of?

A. Atoms B. Tissues C. Cells D. Organelles

Q3: Which scientist added the concept that all cells arise from pre-existing cells?

A. Robert Hooke B. Rudolf Virchow C. Leeuwenhoek D. Schwann

Q4: The smallest unit of life according to cell theory is?

A. Nucleus B. DNA C. Organelle D. Cell

Q5: Cell theory does NOT apply to which of the following?

A. Fungi B. Plants C. Viruses D. Animals

Q6: Which of the following is not a postulate of modern cell theory?

A. All living things are made of cells. B. All cells have nuclei. C. Cells arise from pre-existing cells. D. Cells carry genetic information.

Q7: Which scientist first observed living cells?

A. Schleiden B. Hooke C. Leeuwenhoek D. Virchow

Q8: Who coined the term "cell"?

A. Robert Hooke B. Rudolf Virchow C. Anton Leeuwenhoek D. Schwann

Q9: Which cell structure is essential to the cell theory?

A. Nucleus B. Cell wall C. Cell membrane D. Vacuole

Q10: Which is true about cell theory?

A. It considers DNA as genetic material B. It explains multicellular origin C. It applies to all life forms including viruses D. It does not accept spontaneous generation

Q11: Which of the following contributed to cell theory?

A. Darwin B. Mendel C. Schwann D. Lamarck

Q12: In which year was the modern cell theory finalized?

A. 1805 B. 1831 C. 1839 D. 1855

Q13: Which of these is a limitation of the original cell theory?

A. It considered cells arise from pre-existing cells B. It applied to viruses C. It emphasized structure and function D. It included inheritance concepts

Q14: What was Schleiden’s contribution to cell theory?

A. All animals are made of cells B. All plants are made of cells C. Cells arise from other cells D. Cells are energy-producing units

Q15: What is a prokaryotic cell?

A. Cell without plasma membrane B. Cell without cytoplasm C. Cell without nucleus D. Cell without ribosomes

Q16: Which of these scientists was not involved in proposing cell theory?

A. Schwann B. Hooke C. Schleiden D. Virchow

Q17: Modern cell theory includes?

A. All organisms have mitochondria B. Energy flows within cells C. Only eukaryotes are cells D. All cells are visible under microscope

Q18: Which organelle is necessary for reproduction, supporting the cell theory?

A. Lysosome B. Nucleus C. Ribosome D. Vacuole

Q19: Which of the following provides genetic continuity according to cell theory?

A. Ribosomes B. Lysosomes C. Nucleic acids D. Golgi bodies

Q20: Which feature contradicts cell theory?

A. Presence of cytoplasm B. Existence of unicellular organisms C. Viruses being alive D. Cell reproduction