MCQOPTIONS
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MCQOPTIONS
This section includes 45 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Growth process is |
| A. | Irreversible |
| B. | Reversible |
| C. | Sometimes reversible sometimes irreversible |
| D. | Temporary |
| Answer» B. Reversible | |
| 2. |
A plant has a growth pattern called |
| A. | Closed growth |
| B. | Open growth |
| C. | In between the two |
| D. | None of these |
| Answer» C. In between the two | |
| 3. |
Speed of growth is |
| A. | Rapid throughout |
| B. | Slow throughout |
| C. | First slow then rapid then slow again |
| D. | First rapid then slow |
| Answer» E. | |
| 4. |
Meristems are group of cells that |
| A. | Allow the surrounding region to divide |
| B. | Provide nutrition |
| C. | Help in movement |
| D. | Retain the potential to divide |
| Answer» E. | |
| 5. |
Higher plants grow through |
| A. | Growing points |
| B. | Whole plant body is capable of growing |
| C. | Only roots grow |
| D. | None of these |
| Answer» B. Whole plant body is capable of growing | |
| 6. |
Meristems are of |
| A. | Two types |
| B. | Three types |
| C. | Four types |
| D. | Five types |
| Answer» C. Four types | |
| 7. |
Apical meristems are located at |
| A. | Tips of leaves |
| B. | Tips of flowers |
| C. | Tips of roots and stems |
| D. | Tips of roots only |
| Answer» D. Tips of roots only | |
| 8. |
Function of intercalary meristems is |
| A. | Increase in length |
| B. | Increase in diameter |
| C. | Production of leaves and flowers |
| D. | None of these |
| Answer» D. None of these | |
| 9. |
What is the feature of cells in gastrulation? |
| A. | Division |
| B. | Migration |
| C. | Differentiation |
| D. | All of these |
| Answer» C. Differentiation | |
| 10. |
Vertebral column is formed from |
| A. | Ectoderm |
| B. | Endoderm |
| C. | Mesoderm |
| D. | None of these |
| Answer» D. None of these | |
| 11. |
Liver and pancreas arise from |
| A. | Foregut |
| B. | Midgut |
| C. | Hindgut |
| D. | None of these |
| Answer» B. Midgut | |
| 12. |
Cavity formed between somatic and splanchnic mesoderm is called |
| A. | Gastrocoele |
| B. | Blastocoele |
| C. | Coelom |
| D. | Neurocoele |
| Answer» D. Neurocoele | |
| 13. |
Mechanism of development was explained by |
| A. | Hans Dietrisch |
| B. | Spemann |
| C. | Both a and b |
| D. | Haemmerling |
| Answer» D. Haemmerling | |
| 14. |
Which statement is correct about gray crescent? |
| A. | A pigmented area that appears at time of fertilization |
| B. | A pigment free area that disappears at the time of fertilization |
| C. | A hyperpigmented area that is present in the embryo |
| D. | A pigment free area that appears at time of fertilization |
| Answer» E. | |
| 15. |
Acetabularia crenulata has |
| A. | Irregular shaped cap |
| B. | Regular shaped cap |
| C. | Irregular while young and regular while adult |
| D. | No cap |
| Answer» B. Regular shaped cap | |
| 16. |
Negative physiological changes in our body is called |
| A. | Teratology |
| B. | Aging |
| C. | Regeneration |
| D. | Embryonic induction |
| Answer» C. Regeneration | |
| 17. |
Study of aging is |
| A. | Teratology |
| B. | Embryology |
| C. | Gerontology |
| D. | Pathology |
| Answer» D. Pathology | |
| 18. |
The ability to regain or recover the lost or injured part of body is |
| A. | Aging |
| B. | Regeneration |
| C. | Abnormal development |
| D. | Primary induction |
| Answer» C. Abnormal development | |
| 19. |
Among invertebrates who possess great power of regeneration |
| A. | Arthropods |
| B. | Molluscs |
| C. | Sponges |
| D. | Nematodes |
| Answer» D. Nematodes | |
| 20. |
Growth is basically an increase in |
| A. | Nuber of cells |
| B. | Size of cells |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 21. |
The stage of rapid cell division just after fertilization is |
| A. | Organogenesis |
| B. | Cleavage |
| C. | Gastrulation |
| D. | Growth |
| Answer» C. Gastrulation | |
| 22. |
The German scientist Spemann worked on differentiation in |
| A. | 1924 |
| B. | 1929 |
| C. | 1915 |
| D. | 1940 |
| Answer» B. 1929 | |
| 23. |
Growth of multicellular plants occur in |
| A. | Two phases |
| B. | Three phases |
| C. | Five phases |
| D. | Four phases |
| Answer» E. | |
| 24. |
Cells elongate by |
| A. | Mitosis |
| B. | Uptake of water |
| C. | Stretching |
| D. | Formation of cell wall |
| Answer» C. Stretching | |
| 25. |
In multicellular plants cell division occur by |
| A. | Binary fission |
| B. | Conjugation |
| C. | Meiosis |
| D. | Mitosis |
| Answer» E. | |
| 26. |
Plasticity of cell wall increases during |
| A. | Cell maturation |
| B. | Cell elongation |
| C. | Cell differentiation |
| D. | Cell division |
| Answer» C. Cell differentiation | |
| 27. |
Cells of fibers and tracheids elongate during |
| A. | Phase of cell division |
| B. | Phase of cell elongation |
| C. | Phase of cell maturation |
| D. | Phase of cell differentiation |
| Answer» B. Phase of cell elongation | |
| 28. |
During cell differentiation |
| A. | Walls of cells become thick |
| B. | Walls of cells become pitted |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 29. |
Maximum optimum temperature for growth of plants is |
| A. | 30-40 degree C |
| B. | 25-30 degree C |
| C. | 10-20 degree C |
| D. | 20-40 degree C |
| Answer» C. 10-20 degree C | |
| 30. |
Hemophilia is |
| A. | Excessive bleeding due to defective gene on sex chromosome |
| B. | Due to extra sex chromosome |
| C. | Due to structural deviation during organogenesis |
| D. | Due to nutritional deficiencies |
| Answer» B. Due to extra sex chromosome | |
| 31. |
Which one is incorrect |
| A. | Red light favours elongation of cells |
| B. | Blue light retards cell enlargement |
| C. | UV rays retards cell elongation |
| D. | UV rays retard cell division |
| Answer» E. | |
| 32. |
Light duration plays a role in inducing or suppressing flowering, phenomenon is called |
| A. | Photosynthesis |
| B. | Photoperiodism |
| C. | Phototropism |
| D. | Photogenetics |
| Answer» C. Phototropism | |
| 33. |
Root primordial develop from |
| A. | Apical meristems |
| B. | Intercalary meristems |
| C. | Pericycle |
| D. | Epidermis |
| Answer» D. Epidermis | |
| 34. |
Which one is incorrect? |
| A. | Epiblast is presumptive ectoderm and mesoderm |
| B. | Hypoblast is presumptive endoderm |
| C. | Hypoblast is presumptive mesoderm |
| D. | Upper layer of cells in blastoderm is epiblast |
| Answer» D. Upper layer of cells in blastoderm is epiblast | |
| 35. |
Growth of apical buds suppressing lower axillary buds is |
| A. | Lateral dominance |
| B. | Compensatory dominance |
| C. | Apical dominance |
| D. | Both a and b |
| Answer» D. Both a and b | |
| 36. |
Peripheral part of blastoderm making contact with yolk is called |
| A. | Area pellucida |
| B. | Area opaca |
| C. | Blastocoel |
| D. | Area plana |
| Answer» C. Blastocoel | |
| 37. |
In chicks fertilization is |
| A. | Internal |
| B. | External |
| C. | Both a and b |
| D. | None of these |
| Answer» B. External | |
| 38. |
Inducer substances are produced by |
| A. | Notochord |
| B. | Somite |
| C. | Archenteron |
| D. | Coelom |
| Answer» B. Somite | |
| 39. |
Incubation temperature for chick is |
| A. | 20-30 degree C |
| B. | 40-45 degree C |
| C. | 36-38 degree C |
| D. | 25-35 degree C |
| Answer» D. 25-35 degree C | |
| 40. |
Intercalary meristems are of |
| A. | Permanent nature |
| B. | Temporary nature |
| C. | Some are permanent some temporary |
| D. | None of these |
| Answer» C. Some are permanent some temporary | |
| 41. |
Determinate growth is |
| A. | Growing continuously |
| B. | Fluctuating growth |
| C. | Grow to certain size and then stop |
| D. | Vegetative roots and shoots grow by |
| Answer» E. | |
| 42. |
Vegetative roots and shoots grow by |
| A. | Determinate growth |
| B. | Primary growth only |
| C. | Indeterminate growth |
| D. | None of these |
| Answer» E. | |
| 43. |
In plants growth is of |
| A. | Four types |
| B. | Five types |
| C. | One type |
| D. | Two types |
| Answer» E. | |
| 44. |
Secondary growth is actually |
| A. | Extension of plant body |
| B. | Increase in thickness |
| C. | Production of leaves and flowers |
| D. | None of these |
| Answer» C. Production of leaves and flowers | |
| 45. |
Cambium are examples of |
| A. | Apical meristems |
| B. | Intercalary meristems |
| C. | Lateral meristems |
| D. | None of these |
| Answer» D. None of these | |