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Q. No.
Assertion(A): In the absence of any particular element, plants show certain morphological changes.
Reason(R): Each element has at least one specific structural or functional role in plants.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Mineral Deficiency & Toxicity |
72%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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Assertion(A): The minerals useful for plants are derived from rock minerals.
Reason(R): The role of minerals in plant nutrition is referred to as mineral nutrition.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The role of minerals in plant nutrition is referred to as mineral nutrition.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: SOIL AS RESERVOIR OF ESSENTIAL ELEMENTS |
59%
Level 3: 35%-60%
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NEET 2026 - Target Batch - Vital
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Assertion(A): There is often a need for supplying essential minerals through fertilizers.
Reason(R): The deficiency of essential minerals may not affect the crop yield.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The deficiency of essential minerals may not affect the crop yield.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: SOIL AS RESERVOIR OF ESSENTIAL ELEMENTS |
80%
Level 1: 80%+
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NEET 2026 - Target Batch - Vital
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Assertion(A): Aspartate and glutamate aren't the transport form of nitrogen in xylem vessels.
Reason(R): These amino acids have more nitrogen than amides.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): These amino acids have more nitrogen than amides.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Nitrogen Fixation |
54%
Level 3: 35%-60%
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NEET 2026 - Target Batch - Vital
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Assertion(A): Excess of manganese induces a deficiency of iron, magnesium, and sulfur.
Reason(R): Manganese inhibits calcium translocation in the shoot apex.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Manganese inhibits calcium translocation in the shoot apex.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Mineral Deficiency & Toxicity |
64%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
All the following elements required by higher plants are regarded as ‘beneficial’ except:
1. Sodium
2. Selenium
3. Cobalt
4. Nickel
1. Sodium
2. Selenium
3. Cobalt
4. Nickel
Subtopic: Criteria for Essentiality of Elements |
67%
Level 2: 60%+
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Ammonia synthesis by nitrogenase requires a very high input of energy which is:
| 1. | 4 ATP for each NH3 produced |
| 2. | 8 ATP for each NH3 produced |
| 3. | 12 ATP for each NH3 produced |
| 4. | 16 ATP for each NH3 produced |
Subtopic: Nodule formation |
85%
Level 1: 80%+
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Match each item in COLUMN I with one in Column II and select the correct match from the codes given:
Codes:
| Column I [Element] |
Column II [Role in plants] |
||
| A | Magnesium | P | Synthesis of auxin |
| B | Manganese | Q | Ribosome structure |
| C | Boron | R | Pollen germination |
| D | Zinc | S | Splitting of water |
| A | B | C | D | |
| 1. | Q | R | P | S |
| 2. | S | R | Q | P |
| 3. | Q | S | R | P |
| 4. | R | S | P | Q |
Subtopic: Mineral Function |
83%
Level 1: 80%+
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Nitrifying bacteria are:
1. chemoautotrophs
2. photoautotrophs
3. chemoheterotrophs
4. methanogens
1. chemoautotrophs
2. photoautotrophs
3. chemoheterotrophs
4. methanogens
Subtopic: Nitrogen metabolism |
78%
Level 2: 60%+
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In nitrogen cycle, the bacteria carrying out nitrification are:
1. Photosynthetic autotrophs
2. Chemoautotrophs
3. Chemoheterotrophs
4. Methanogens
1. Photosynthetic autotrophs
2. Chemoautotrophs
3. Chemoheterotrophs
4. Methanogens
Subtopic: Nitrogen metabolism |
83%
Level 1: 80%+
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