MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In angiosperms, lateral roots arise from [BHU 2000; 04; MHCET 2001] |
| A. | Endodermis |
| B. | Cortex |
| C. | Pericycle |
| D. | Epiblemma |
| Answer» D. Epiblemma | |
| 2. |
A fibrous root system is better adapted than tap root system for [BHU 1993, 2001; AMU 2001] |
| A. | Storage of food |
| B. | Anchorage of plant to soil |
| C. | Absorption of water and minerals |
| D. | Transport of water and organic food |
| Answer» C. Absorption of water and minerals | |
| 3. |
A fleshy root tapering at both ends is [AMU 2001] |
| A. | Fusiform |
| B. | Conical |
| C. | Napiform |
| D. | Tuberous |
| Answer» B. Conical | |
| 4. |
Which type of root is found in Mirabilis jalapa |
| A. | Respiratory |
| B. | Tuberous |
| C. | Reproductive |
| D. | Fasciculated |
| Answer» C. Reproductive | |
| 5. |
Soil binding roots are found in |
| A. | Sugarcanes |
| B. | Maize |
| C. | Grasses |
| D. | Dicots |
| Answer» D. Dicots | |
| 6. |
Fusiform roots are found in [BHU 1996] |
| A. | Solanum tuberosum |
| B. | Calocasia |
| C. | Daucus carota |
| D. | Raphanus sativus |
| Answer» E. | |
| 7. |
A root is adventitious when it is [CPMT 2002] |
| A. | Swollen |
| B. | Growing in marshy places |
| C. | Formed from plumule |
| D. | Modified for storage |
| Answer» D. Modified for storage | |
| 8. |
Hygroscopic roots occur in [AMU 2002] |
| A. | Vanda |
| B. | Rhizophora |
| C. | Bryophyllum |
| D. | All the above |
| Answer» B. Rhizophora | |
| 9. |
Regions of root from base to root tip are [AMU 2001] |
| A. | Maturation zone - Cell division zone - Elongation zone |
| B. | Maturation zone - Elongation zone - Cell division zone |
| C. | Cell division zone - Elongation zone - Maturation zone |
| D. | Elongation zone - Cell division zone - Maturation zone |
| Answer» C. Cell division zone - Elongation zone - Maturation zone | |
| 10. |
Lateral roots arise from primordia developed by division of |
| A. | Pericycle cells in between two protoxylem points |
| B. | Pericycle cells opposite protoxylem points |
| C. | Endodermis cells in between two protoxylem points |
| D. | Endodermis opposite protoxylem points |
| Answer» B. Pericycle cells opposite protoxylem points | |
| 11. |
Which of the following pairs are correctly matched (1) Assimilatory roots - Photosynthesis (2) Fasciculated roots - Food storage (3) Stilt root - Mechanical support (4) Sucking root - Absorption of moisture from the air Select the correct answer - |
| A. | 2, 3 and 4 |
| B. | 1, 2 and 4 |
| C. | 1, 3 and 4 |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 12. |
Reproductive roots taking part in reproduction are found in |
| A. | Dalbergia (Shisham) |
| B. | Dahlia |
| C. | Sweet Potato (Ipomoea) |
| D. | All of these |
| Answer» E. | |
| 13. |
'Pneumatophores' are present/common in [BHU 2005] |
| A. | Xerophytes |
| B. | Hygrophytes |
| C. | Mesophytes |
| D. | Halophytes |
| Answer» E. | |
| 14. |
Velamen is present in [CPMT 1988, 2001] |
| A. | Tuberous roots |
| B. | Epiphytic roots of orchids |
| C. | Breathing roots |
| D. | Parasitic roots |
| Answer» C. Breathing roots | |
| 15. |
Napiform roots are recorded from |
| A. | Radish |
| B. | Carrot |
| C. | Beet |
| D. | Sweet potato |
| Answer» D. Sweet potato | |
| 16. |
Buttress roots are |
| A. | Aerial |
| B. | Underground |
| C. | Aquatic |
| D. | Horizontal |
| Answer» E. | |
| 17. |
Haustoria or sucking roots occur in [CPMT 1978; BHU 1996; DPMT 1999; JIPMER 1999; Pb. PMT 1999] |
| A. | Betel |
| B. | Orchids |
| C. | Cuscuta |
| D. | Tinospora |
| Answer» D. Tinospora | |
| 18. |
Relation between bacteria and legume having nodulated roots is that of |
| A. | Host-parasitism |
| B. | Commensalism |
| C. | Symbiosis |
| D. | Epiphytism |
| Answer» D. Epiphytism | |
| 19. |
Pneumatophores or breathing roots occur in [CPMT 1984, 93; BHU 1984, 90; RPMT 1985; AIIMS 1985; APMEE 1999] |
| A. | Hydrophytes |
| B. | Epiphytes |
| C. | Xerophytes |
| D. | Mangrove plants |
| Answer» E. | |
| 20. |
Pneumatophores are useful in [CPMT 1986, 96; BHU 1990] |
| A. | Respiration |
| B. | Transpiration |
| C. | Guttation |
| D. | Protein synthesis |
| Answer» B. Transpiration | |
| 21. |
In Dahlia, the roots are [MP PMT 1987] |
| A. | Fibrous |
| B. | Stilt |
| C. | Moniliform |
| D. | Fasciculated tuberous |
| Answer» E. | |
| 22. |
Adventitious roots are adventitious in their |
| A. | Function |
| B. | Position |
| C. | Place of origin |
| D. | Internal structure |
| Answer» D. Internal structure | |
| 23. |
Velamen takes part in [MP PMT 1986; CPMT 1989, 91; Bihar PMT 1994] |
| A. | Absorption of moisture from air |
| B. | Absorption of water from soil |
| C. | Exchange of gases |
| D. | Transpiration |
| Answer» B. Absorption of water from soil | |
| 24. |
A root cap is absent in the root of |
| A. | Hanging prop root of Banyan |
| B. | Stilt root of Pandanus |
| C. | Epiphytic roots |
| D. | Seminal roots |
| Answer» D. Seminal roots | |
| 25. |
Conical fleshy roots occur in |
| A. | Sweet potato |
| B. | Dahlia |
| C. | Asparagus |
| D. | Carrot |
| Answer» E. | |
| 26. |
Seminal roots are found in |
| A. | Dicots |
| B. | Monocots |
| C. | Gymnosperms |
| D. | All of these |
| Answer» C. Gymnosperms | |
| 27. |
Root is distinguishable from stem in [NCERT 1980] |
| A. | Having a root cap |
| B. | Having root hairs |
| C. | Absence of nodes and internodes |
| D. | All of these |
| Answer» E. | |
| 28. |
Haustoria are |
| A. | Epiphytic roots |
| B. | Hygroscopic roots |
| C. | Reproductive roots |
| D. | Parasitic roots |
| Answer» E. | |
| 29. |
Roots are absent in |
| A. | Myriophyllum |
| B. | Ceratophyllum |
| C. | Utricularia and Wolffia |
| D. | All of these |
| Answer» E. | |
| 30. |
Which one is a fleshy root |
| A. | Ficus benghalensis and Solanum tuberosum |
| B. | Raphanus sativus and Daucus carota |
| C. | Colocasia and Allium |
| D. | Chrysanthemum and Musa |
| Answer» C. Colocasia and Allium | |
| 31. |
In Pandanus (Screw Pine) root cap is |
| A. | Simple, multicellular |
| B. | Multiple, multicellular |
| C. | Absent |
| D. | Replaced by root pocket |
| Answer» C. Absent | |
| 32. |
Root cap is largest in |
| A. | Banyan |
| B. | Pandanus |
| C. | Jussiaea |
| D. | Maize |
| Answer» C. Jussiaea | |
| 33. |
Stilt roots which grow obliquely from basal nodes of culm stem and acting as brace are found in [MP PMT 1993; DPMT 1999] |
| A. | Sorghum |
| B. | Maize |
| C. | Sugarcane |
| D. | All of these |
| Answer» E. | |
| 34. |
Roots help in clinging and climbing in |
| A. | Pothos and Tecoma |
| B. | Hedera (Ivy) and Piper (Betel) |
| C. | Black pepper |
| D. | All of these |
| Answer» E. | |
| 35. |
A tap root is always |
| A. | |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 36. |
A root hair is |
| A. | Always unicellular |
| B. | May be unicellular or multicellular |
| C. | Unicellular but branched |
| D. | Multicellular and branched |
| Answer» B. May be unicellular or multicellular | |
| 37. |
In Turnip, 2/3 part of swollen area is derived from |
| A. | Hypophysis |
| B. | Hypocotyl |
| C. | Epicotyl |
| D. | Radicle |
| Answer» C. Epicotyl | |
| 38. |
Nodulated roots make the plant rich in |
| A. | Food |
| B. | Proteins |
| C. | Carbohydrates |
| D. | Fats |
| Answer» C. Carbohydrates | |
| 39. |
Pneumatophores occur in [APMEE 1995] |
| A. | Vanda |
| B. | Avicennia |
| C. | Banyan |
| D. | Mirabilis |
| Answer» C. Banyan | |
| 40. |
Photosynthetic roots are recorded from |
| A. | Jussiaea |
| B. | Rhizophora |
| C. | Bryophyllum |
| D. | Tinospora |
| Answer» E. | |
| 41. |
Prop or pillar roots are [CPMT 1983; JIPMER 1983] |
| A. | Fasciculated roots |
| B. | Tap roots |
| C. | Adventitious roots |
| D. | Secondary roots |
| Answer» D. Secondary roots | |
| 42. |
Nodulated roots occur in |
| A. | Pea |
| B. | Wheat |
| C. | Mustard |
| D. | Rice |
| Answer» B. Wheat | |
| 43. |
Food is stored in one of the following [AFMC 1980; Kerala CET 2001] |
| A. | Respiratory root |
| B. | Fibrous root |
| C. | Fasciculated root |
| D. | Nodulated root |
| Answer» D. Nodulated root | |
| 44. |
Which is not a stem modification [AFMC 1990] |
| A. | Ginger |
| B. | Mango-ginger |
| C. | Potato |
| D. | Garlic |
| Answer» C. Potato | |
| 45. |
Sucking roots occur in [NCERT 1983] |
| A. | Ficus |
| B. | Vanda |
| C. | Carrot |
| D. | Mistletoe |
| Answer» E. | |
| 46. |
Root cap is absent in [BHU 1994, 2000] |
| A. | Hydrophytes |
| B. | Lithophytes |
| C. | Xerophytes |
| D. | Mesophytes |
| Answer» B. Lithophytes | |
| 47. |
Prop roots of Banyan tree are meant for [CPMT 1983] |
| A. | Respiration |
| B. | Absorption of water from soil |
| C. | Retention of water in soil |
| D. | Providing support to big tree |
| Answer» E. | |
| 48. |
There is maximum growth in root [CPMT 1998; AFMC 1993] |
| A. | In the dark |
| B. | In the light |
| C. | At the root apex |
| D. | Just behind the root apex |
| Answer» E. | |
| 49. |
Epiphyllous roots in Begonia and Bryophyllum are |
| A. | Green roots |
| B. | Modified leaves |
| C. | Roots bearing stem |
| D. | Roots arising from leaves |
| Answer» E. | |
| 50. |
Roots are feebly developed in |
| A. | Hydrophytes |
| B. | Mesophytes |
| C. | Xerophytes |
| D. | Halophytes |
| Answer» B. Mesophytes | |