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KCET 2019 Biology Solved Paper
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Question : 3
Total: 60
Consider the following statements i, ii and iii regarding criteria for essentiality of the nutrients in plants:
A. The presence of elements is must for plants to complete their life cycle.
B. The role of the element can be replaced by another element.
C. The element must be directly involved in the metabolism of the plant.
Choose the correct statement/s.
A and C
A and B
C only
B and C
Validate
Solution:
For an element to be regarded as essential, three criteria are required:
→ A plant cannot complete its life cycle without the element.
→ No other element can perform the function of the element
→ The element is directly involved in plant nutrition.
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