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NEET • BIOLOGY • MINERAL NUTRITION
Mineral nutrition practice · Easy
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61
Easy
61 of 71
Remembering
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For the uptake of ions in the second phase of absorption of minerals, the pathway followed is called
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Correct option: B
Active uptake
Option B (Active uptake) is correct because the second phase of mineral absorption requires energy expenditure by the plant, indicating active transport.
62
Easy
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Analyzing
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On the basis of symptoms of chlorosis in leaves, a student inferred that this was due to the deficiency of nitrogen. This inference could be correct only if we assume that yellowing of leaves appeared first in
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Correct option: A
Old leaves
Option A (Old leaves) is correct because nitrogen is a mobile element, so deficiency symptoms appear first in older leaves as it is translocated to younger leaves.
63
Easy
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Remembering
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Which element is required for the germination of pollen grains?
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Correct option: A
Boron
Option A is correct because boron is essential for pollen germination, pollen tube growth, and overall reproductive development in plants.
64
Easy
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Understanding
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If by radiation all nitrogenase enzymes are inactivated, then there will be no
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Correct option: A
Fixation of nitrogen in legumes
Option B (Fixation of atmospheric nitrogen) is correct because nitrogenase is the enzyme responsible for fixing atmospheric nitrogen, so inactivating it would prevent this process.
65
Easy
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Remembering
+4 | -1
Which of the following is one of the component of ATP?
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Correct option: B
Phosphorus
Option B is correct because phosphorus is a key component of ATP (Adenosine Triphosphate), which contains three phosphate groups.
66
Easy
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Remembering
+4 | -1
Based on the quantitative requirement of elements by the plants, these elements are called
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Correct option: C
Both (1) and (2)
Option C (Both (1) and (2)) is correct because elements are classified as macronutrients or micronutrients based on their quantitative requirements by plants.
67
Easy
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Understanding
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The nutrient solution in flowering culture hydroponics
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Correct option: A
Is constantly recycled using a pump
Option A (Is constantly recycled using a pump) is correct because in most hydroponic systems, the nutrient solution is recycled to conserve water and nutrients.
68
Easy
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Remembering
+4 | -1
The optimum temperature preferred for the plant growth is
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Correct option: B
Between 15℃ and 30℃
Option B (Between 15℃ and 30℃) is correct because most plants thrive within this temperature range for optimal growth and metabolic processes.
69
Easy
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Remembering
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Identify the non-leguminous plants that forms nodules to fix nitrogen
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Correct option: D
All of these
Option D is correct because Alnus, Casuarina, and Xanthomonas are all non-leguminous plants known to form nodules and fix nitrogen, although Xanthomonas's role is less direct.
70
Easy
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Remembering
+4 | -1
The number of essential nutrients needed in plants is
View answer and explanation
Correct option: A
16
Option A (16) is correct because there are 16 essential nutrients required for plant growth, including macronutrients and micronutrients.
71
Easy
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Understanding
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Select the correct statement.
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Correct option: C
Legumes fix nitrogen only by bacteria present in root nodules
Option C (Legumes fix nitrogen only by bacteria present in root nodules) is correct because legumes form a symbiotic relationship with nitrogen-fixing bacteria (Rhizobium) specifically in root nodules.
Revision notes and key takeaways
Review MINERAL NUTRITION in your textbook or class notes, then use this set to check your understanding.
Showing 61-71 of 71 questions