SET 1: Cell Discovery, Cell Theory & Basic Concepts
Introduction: This set covers the fundamental concepts of cell biology including the discovery of cells, cell theory, scientists who contributed to our understanding of cells, and the basic structure and functions of cells. These questions are essential for building a strong foundation in cell biology as per NCERT, JKBOSE, and CBSE Class 9 curriculum.
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📘 SCIENCE
BIOLOGY | Cell-A
📝 Questions: 50
⏱️ Timer: 20 min
Q1. Cork is obtained from which part of a plant?
Q2. The shape of a cell depends on its:
Q3. Which scientist discovered free-living cells in pond water?
Q4. Unicellular organisms are those which consist of:
Q5. Who discovered the nucleus in the cell?
Q6. Cells seen in onion peels of different sizes appear:
Q7. Why is onion peel placed in water during slide preparation?
Q8. The cell is called the structural and functional unit of life because:
Q9. Which human cell is male gamete?
Q10. The structures seen in onion peel are:
Q11. Which instrument was used by Robert Hooke to observe cells?
Q12. Onion peel is first observed under which microscope power?
Q13. Cells arise from:
Q14. A cell can live and function because of its:
Q15. The nucleus was discovered in which year?
Q16. Who suggested that all cells arise from pre-existing cells?
Q17. What did the cork structure resemble according to Hooke?
Q18. In which year was cell theory expanded by Virchow?
Q19. All living organisms are made up of:
Q20. All cells have:
Q21. Do all cells look alike in shape and size?
Q22. Which cell has a changing shape?
Q23. Which precaution is necessary while placing the cover slip?
Q24. Which cell has a typical elongated shape?
Q25. Which organism is an example of a unicellular organism?
Q26. Who coined the term 'protoplasm'?
Q27. What is the thin outer layer of onion peel called?
Q28. The word 'cell' is derived from which language?
Q29. Which tool helps in transferring onion peel to the slide?
Q30. Waste removal in a cell is carried out by:
Q31. The specific components inside a cell are called:
Q32. Who observed cork cells for the first time?
Q33. Every multicellular organism starts life from a:
Q34. In which year were cells first discovered?
Q35. Cell organelles help in:
Q36. The basic building units of an onion bulb are called:
Q37. Division of labour in multicellular organisms means:
Q38. Which of the following is a unicellular organism?
Q39. In which year did Leeuwenhoek discover free-living cells?
Q40. The electron microscope was discovered around:
Q41. Which microscope made it possible to see cell organelles clearly?
Q42. In which year was the term 'protoplasm' coined?
Q43. The meaning of the word 'cell' is:
Q44. Robert Hooke observed cells in which material?
Q45. Division of labour also occurs within a:
Q46. The cell theory was presented in the years:
Q47. Who presented the cell theory?
Q48. Multicellular organisms are made up of:
Q49. New cells are formed by the process of:
Q50. Which human cell is responsible for carrying messages?
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