MDCAT XI Biology The Cell Structure and Function Online Test 2026

1. Which statement about ribosomes is TRUE?

2. Which structure forms the spindle apparatus during mitosis?

3. Which statement about plant vacuoles is TRUE?

4. Cilia and flagella are primarily composed of:

5. Which cytoskeletal filament is MOST involved in cytokinesis?

6. Which chloroplast structure increases surface area for light absorption?

7. Free ribosomes differ from bound ribosomes because free ribosomes:

8. Which statement supports the endosymbiotic theory of mitochondria?

9. The nucleus is absent in:

10. A chromosome with the centromere located exactly at the middle is called:

11. Which organelle is MOST abundant in liver cells due to detoxification?

12. Which property of the plasma membrane allows selective permeability?

13. Which feature allows mitochondria to replicate independently?

14. Which change occurs in chromosomes during S-phase?

15. It precisely describes the function of nucleoli:

16. Which of the following cell type is more appropriate to study mitochondria?

17. It is a disease characterized by the accumulation of lipids in the brain cells leading to mental retardation and even death:

18. Which of the following function is performed by both types of endoplasmic reticulum?

19. Which of the following organelle is associated with the single membrane?

20. A function that is not related to smooth endoplasmic reticulum:

21. Which of the following statement is incorrect regarding endoplasmic reticulum?

22. Identify non-membranous organelle from the following:

23. Peripheral parts of the cell are often like:

24. Which of the following is not associated with both prokaryotic and eukaryotic cell membrane?

25. An enzyme that is attached to cell membrane of cell:

26. It is absent in secondary cell wall:

27. Which of the following is related to prokaryotic cell wall?

28. If Golgi apparatus is non-functional, which process will be MOST affected?

29. A defect in nuclear envelope breakdown will directly interfere with:

30. A cell actively synthesizing steroid hormones will have an abundance of:

31. The “fluid mosaic model” describes the plasma membrane. Which component provides the membrane its fluidity at low temperatures?

32. Which of the following organelles would be most abundant in cells specialized for secretion of proteins?

33. Mitochondria divide by

34. Organelle always contains DNA is.

35. Part of cytoplasm toward the plasma membrane is

36. Presence or absence of …… can easily differentiate between prokaryotic and eukaryotic cell.

37. Cell structure containing highest concentration of RNA are.

38. Which of the following processes occurs in the cytosol, not in a membrane-bound organelle?

39. What is the main difference between facilitated diffusion and simple diffusion?

40. Which of the following best describes the matrix of mitochondria?

41. Which organelle is primarily responsible for synthesis of membrane phospholipids?

42. The absence of membrane-bound organelles in prokaryotes results in:

43. Which change occurs in chromosomes during interphase?

44. Euchromatin is characterized by:

45. Which process occurs in both prokaryotic and eukaryotic cells?

46. Which component of mitochondria is responsible for ATP synthesis?

47. Which organelle is functionally continuous with the nuclear envelope?

48. Which of the following cell types would be most affected by a deficiency in lysosomal enzymes?

49. Which statement about prokaryotic DNA is MOST accurate?

50. A major structural difference between plant and animal cells is that plant cells: