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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 14501. |
Blue whale is placed under: |
| A. | Endangered |
| B. | Critically endargered |
| C. | Rare |
| D. | Extinct |
| Answer» B. Critically endargered | |
| 14502. |
The country which hosted the First World Earth Summit on conservation of environment is? |
| A. | Spain |
| B. | Peru |
| C. | India |
| D. | Brazil |
| Answer» E. | |
| 14503. |
Approximately 50% of total world species are present on: |
| A. | tropical ram forest |
| B. | temperate rain forest |
| C. | temperate deciduous forest |
| D. | coral reefs |
| Answer» B. temperate rain forest | |
| 14504. |
Which of the following is not a concern regarding habitat fragmentation? |
| A. | Habitats can change type. |
| B. | Habitats can be too small to support some species. |
| C. | It reduces dispersal ability of some animals. |
| D. | It creates a large amount of vulnerable edge habitat. |
| Answer» B. Habitats can be too small to support some species. | |
| 14505. |
Earth Summit at Rio-de-Janeiro was related to: |
| A. | Soil fertility |
| B. | Survey of natural resources |
| C. | Conservation of environment |
| D. | Prevention of afforestation |
| Answer» D. Prevention of afforestation | |
| 14506. |
Biosphere Reserves differ from National Parks and Wildlife Sanctuaries because in the former: |
| A. | human beings are not allowed to enter. |
| B. | people are an integral part of the system. |
| C. | plants are paid greater attention than the animals. |
| D. | living organisms are brought from all over the world and preserved. |
| Answer» C. plants are paid greater attention than the animals. | |
| 14507. |
In a biosphere reserve, the area surrounding the core zone is called: |
| A. | Buffer zone |
| B. | Transition zone |
| C. | Peripheral zone |
| D. | Development zone |
| Answer» B. Transition zone | |
| 14508. |
Biosphere reserve project was started in India during: |
| A. | 1984 |
| B. | 1985 |
| C. | 1986 |
| D. | 1989 |
| Answer» D. 1989 | |
| 14509. |
For conservation of tiger 'a tiger project' is being run in the country. How many tiger reserves are there under this project? |
| A. | 10 |
| B. | 14 |
| C. | 12 |
| D. | More than 16 |
| Answer» E. | |
| 14510. |
Mark the odd one [AFMC 2005] |
| A. | Monocytes |
| B. | Lymphocyte |
| C. | Neutrophils |
| D. | Erythrocytes |
| Answer» E. | |
| 14511. |
Which of the following cytoplasmic granules contain histamine [BHU 2002] |
| A. | Basophils |
| B. | Acidophils |
| C. | Eosinophils |
| D. | Neutrophils |
| Answer» B. Acidophils | |
| 14512. |
In embryonic stage RBCs develop in [BVP 2002] |
| A. | Liver and kidney |
| B. | Liver and spleen |
| C. | Spleen and kidney |
| D. | Liver and pancreas |
| Answer» C. Spleen and kidney | |
| 14513. |
Which is correct [Orissa 2004] |
| A. | Blood has WBC and lymph has RBC |
| B. | Blood has WBC, RBC and lymph nothing |
| C. | Blood has RBC, WBC and lymph has WBC |
| D. | Lymph has WBC, RBC and blood has RBC |
| Answer» D. Lymph has WBC, RBC and blood has RBC | |
| 14514. |
Donnon effect is shown by |
| A. | Blood |
| B. | Lymph |
| C. | Both [a] and [b] |
| D. | None of the above |
| Answer» B. Lymph | |
| 14515. |
The largest corpuscles in mammalian blood are [MP PMT 1997] |
| A. | Basophils |
| B. | Erythrocytes |
| C. | Monocytes |
| D. | Lymphocytes |
| Answer» D. Lymphocytes | |
| 14516. |
Match the following Disease Cause A. Diabetes 1. Rise in WBC count B. Uraemia 2. Deficiency of vitamin\[{{B}_{12}}\] C. Anaemia 3. Rise in RBC count D. Polycythemia 4. Fall of WBC count E. Pernicious or Megaloblastic anaemia 5. Fall in RBC count F. Leukemia 6. Increase in blood sugar level G. Thrombocytopenia 7. Urea is in excess in blood H. Leucopenia 8. Pathological increase in WBC I. Leucocytosis 9. Decrease in the number of platelets The correct matching sequence is |
| A. | 1, 3, 4, 2, 5, 6, 7, 9, 8 |
| B. | 6, 7, 5, 3, 2, 8, 9, 4, 1 |
| C. | 6, 7, 3, 5, 8, 2, 9, 1, 4 |
| D. | 7, 6, 5, 3, 2, 9, 8, 4, 1 |
| Answer» C. 6, 7, 3, 5, 8, 2, 9, 1, 4 | |
| 14517. |
The chemical which causes damage of WBC, bone marrow, spleen, lymph nodes and lungs is [AIIMS 1993] |
| A. | Iodine -131 |
| B. | Calcium |
| C. | Strontium -90 |
| D. | Iodine -127 |
| Answer» D. Iodine -127 | |
| 14518. |
If kept in 0.8% \[NaCl,\]R.B.Cs will [CPMT 1979] |
| A. | Shrink |
| B. | Remain same |
| C. | Burst |
| D. | None of these |
| Answer» C. Burst | |
| 14519. |
Root cap is absent in [BHU 1994, 99; RPMT 2002] |
| A. | Lithophytes |
| B. | Hydrophytes |
| C. | Xerophytes |
| D. | Mesophytes |
| Answer» C. Xerophytes | |
| 14520. |
Histogen theory states that epidermis is derived from the [AIIMS 1982, 89; DPMT 1985; MP PMT 1986] |
| A. | Periblem |
| B. | Cambium |
| C. | Cortex |
| D. | Dermatogen |
| Answer» E. | |
| 14521. |
Bordered pits are very common in [CPMT 1985] |
| A. | Monocotyledons |
| B. | Gymnosperms |
| C. | Dicotyledons |
| D. | Pteridophytes |
| Answer» C. Dicotyledons | |
| 14522. |
Parenchymatous tissue is characterised by the [JIPMER 2002; MP PMT 2004] |
| A. | Presence of uniform thickening |
| B. | Presence of thickening in the corners |
| C. | Presence of intercellular spaces |
| D. | Presence of lignified walls |
| Answer» B. Presence of thickening in the corners | |
| 14523. |
The chief function of sieve tubes is [DPMT 1990] |
| A. | To translocate the organic materials manufactured in the leaves |
| B. | To conduct minerals |
| C. | To transport water from root to leaves |
| D. | To help the plant in forming wood |
| Answer» B. To conduct minerals | |
| 14524. |
Promeristems can be distinguished from primary meristems by |
| A. | Their power of active division |
| B. | Their apical position |
| C. | The presence of large prominent nucleus |
| D. | All the above |
| Answer» E. | |
| 14525. |
Root cap in dicots is formed from |
| A. | Protoderm |
| B. | Ground meristem |
| C. | Calyptrogen |
| D. | Procambium |
| Answer» B. Ground meristem | |
| 14526. |
The interfibrillar material of the secondary wall is chiefly made up of [AMU 1991] |
| A. | Fat |
| B. | Wax |
| C. | Lignin |
| D. | Glucose |
| Answer» D. Glucose | |
| 14527. |
Tunica corpus theory was proposed by [AMU 1988; BHU 1988, 89; MP PMT 2001] |
| A. | Schmidt |
| B. | Strasburger |
| C. | Nageli |
| D. | Hofmeister |
| Answer» B. Strasburger | |
| 14528. |
Bamboo and grasses elongate by the activity of --------- [KCET 2004] |
| A. | Secondary meristem |
| B. | Lateral meristem |
| C. | Apical meristem |
| D. | Intercalary meristem |
| Answer» E. | |
| 14529. |
Intercalary meristem results is [Kerala PMT 2004] |
| A. | Secondary growth |
| B. | Primary growth |
| C. | Apical growth |
| D. | Secondary thickening |
| Answer» C. Apical growth | |
| 14530. |
Grass stem elongates by the activity of [DPMT 1985; BHU 1979] |
| A. | Primary meristem |
| B. | Secondary meristem |
| C. | Intercalary meristem |
| D. | Apical meristem |
| Answer» D. Apical meristem | |
| 14531. |
Conducting part of phloem according to Haberlandt (1914) is [J & K CET 2002] |
| A. | Hadrom |
| B. | Leptom |
| C. | Sterom |
| D. | Bark |
| Answer» C. Sterom | |
| 14532. |
A component of xylem is [MP PMT 1999] |
| A. | Sieve tube |
| B. | Medullary ray |
| C. | Sclerid |
| D. | Tracheid |
| Answer» E. | |
| 14533. |
Most of the fibres in the cortex are of |
| A. | Sclerenchymatous origin |
| B. | Endodermal origin |
| C. | Parenchymatous origin |
| D. | Collenchymatous origin |
| Answer» B. Endodermal origin | |
| 14534. |
Starch grains in latex are |
| A. | Elongated |
| B. | Prismatic |
| C. | Dumbell shaped |
| D. | Oval |
| Answer» D. Oval | |
| 14535. |
Vessel less angiosperms are |
| A. | Hydrilla |
| B. | Trochodendron |
| C. | Tetracentron |
| D. | All the above |
| Answer» E. | |
| 14536. |
Which of the following supporting tissues have cells with unequally thickened walls |
| A. | Fibres |
| B. | Sclereids |
| C. | Collenchyma |
| D. | All the above |
| Answer» D. All the above | |
| 14537. |
Which of the following tissues do not have specifically thickened walls |
| A. | Parenchyma |
| B. | Collenchyma |
| C. | Fibres |
| D. | Sclereids |
| Answer» B. Collenchyma | |
| 14538. |
DNA content of quiescent zone is |
| A. | High |
| B. | Low |
| C. | Very high |
| D. | Balanced |
| Answer» C. Very high | |
| 14539. |
Name the tissue from which procambium and primary structures of plant originates [JIPMER 1984] |
| A. | Phellogen |
| B. | Promeristem |
| C. | Calyptrogen |
| D. | None of these |
| Answer» C. Calyptrogen | |
| 14540. |
Wood is a common name of [DPMT 1980; J & K CET 2002; MP PMT 2004, 05] |
| A. | Phloem |
| B. | Secondary xylem |
| C. | Cambium |
| D. | Vascular bundles |
| Answer» C. Cambium | |
| 14541. |
Korper Kappe theory is applicable for |
| A. | Stem apex |
| B. | Root apex |
| C. | Leaf apex |
| D. | All the above |
| Answer» C. Leaf apex | |
| 14542. |
Multilayered root cap occurs in |
| A. | Banyan |
| B. | Pandanus |
| C. | Orchids |
| D. | Pothos |
| Answer» C. Orchids | |
| 14543. |
Which tissue is derived from plerome |
| A. | Epidermis |
| B. | Endodermis |
| C. | Cortex |
| D. | Vascular tissue |
| Answer» E. | |
| 14544. |
Which of the following plants grow by a single ?apical cell? |
| A. | Monocots |
| B. | Dicots |
| C. | Gymnosperms |
| D. | Bryophytes |
| Answer» E. | |
| 14545. |
Intercalary meristem results in |
| A. | Secondary growth |
| B. | Primary growth |
| C. | Apical growth |
| D. | Periderm formation |
| Answer» C. Apical growth | |
| 14546. |
Term 'meristem' was coined by |
| A. | N. Grew |
| B. | Strasburger |
| C. | Hanstein |
| D. | C. Nageli |
| Answer» E. | |
| 14547. |
The tissue which is living but does not possess nucleus in mature stage is [RPMT 1995] |
| A. | Companion cell |
| B. | Vessels |
| C. | Sieve tube |
| D. | Sclerenchyma |
| Answer» D. Sclerenchyma | |
| 14548. |
Secondary wall is not formed in |
| A. | Parenchyma |
| B. | Collenchyma |
| C. | Companion cells |
| D. | All the above |
| Answer» B. Collenchyma | |
| 14549. |
Aerenchyma is found in [CBSE PMT 1999; JIPMER 2001; CPMT 2002] |
| A. | Lithophytes |
| B. | Hydrophytes |
| C. | Sciophytes |
| D. | Xerophytes |
| Answer» C. Sciophytes | |
| 14550. |
Vascular cambium of the root is an example of [BHU 2000; AIIMS 2000] |
| A. | Apical meristem |
| B. | Intercalary meristem |
| C. | Secondary meristem |
| D. | Root apical meristem |
| Answer» D. Root apical meristem | |