NEET Botany MCQs

Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?

• Resource partitioning
• Competitive release
• Mutualism
• Predation

Amensalism can be represented as:

• Species A (–); Species B (0)
• Species A (+); Species B (+)
• Species A (–); Species B (–)
• Species A (+); Species B (0)

The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as:

• Climax
• Climax community
• Standing state
• Standing crop

Which of the following statements is not correct?

• Pyramid of biomass in sea is generally inverted.
• Pyramid of biomass in sea is generally upright.
• Pyramid of energy is always upright.
• Pyramid of numbers in a grassland ecosystem is upright.

In the equation GPP–R = NPP.<br> R represents:

• Radiant energy
• Retardation factor
• Environment factor
• Respiration losses

Which of the following statements is correct?

• Fusion of two cells is called Karyogamy.
• Fusion of protoplasms between two motile on non-motile gametes is called plasmogamy.
• Organisms that depend on living plants are called saprophytes.
• Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells.

Match Column-I with Column-II.<br> Choose the correct answer from the options given below:

• A-I, B-II, C-III, D-IV
• A-II, B-III, C-IV, D-I
• A-IV, B-II, C-I, D-III
• A-III, B-IV, C-II, D-I

Select the correct pair.

• <table> <tr> <td>Large colorless empty cells in the epidermis of grass leaves</td> <td>- Subsidiary cells</td> </tr> </table>
• <table> <tr> <td>In dicot leaves, vascular bundles are surrounded by large thick-walled cells</td> <td>- Conjunctive tissue</td> </tr> </table>
• <table> <tr> <td>Cells of medullary rays that form part of cambial ring</td> <td>- Interfascicular cambium</td> </tr> </table>
• <table> <tr> <td>Loose parenchyma cells rupturing the epidermis and forming a lensshaped opening in bark</td> <td>- Spongy parenchyma</td> </tr> </table>

Match List-I with List-II. <table> <tr> <th>List-I </th> <th>List-II</th> </tr> <tr> <td>(A)Protein</td> <td>(I)C = C double bonds</td> </tr> <tr> <td>(B)Unsaturated fatty acid</td> <td>(II)Phosphodiester bonds</td> </tr> <tr> <td>(C)Nucleic acid</td> <td>(III)Glycosidic bonds</td> </tr> <tr> <td>(D)Polysaccharide</td> <td>(IV)Peptide bonds</td> </tr> </table> Choose the correct answer from the options given below:

• A-I, B-IV, C-III, D-II
• A-II, B-I, C-IV, D-III
• A-IV, B-III, C-I, D-II
• A-IV, B-I, C-II, D-III

Match List-I with List-II. <table> <tr> <th>List-I </th> <th>List-II</th> </tr> <tr> <td>(A)S phase</td> <td>(I)protein are synthesized</td> </tr> <tr> <td>(B)G₂ phase</td> <td>(II)Inactive phase</td> </tr> <tr> <td>(C)Quiescent stage</td> <td>(III)Interval between mitosis and initiation of DNA replication</td> </tr> <tr> <td>(D)G₁ phase</td> <td>(IV)DNA replication</td> </tr> </table> Choose the correct answer from the options given below:

• A-IV, B-II, C-III, D-I,
• A-IV, B-I, C-II, D-III,
• A-II, B-IV, C-III, D-I,
• A-III, B-II, C-I, D-IV,