Deficiency Symptoms of Essential Elements MCQ - Practice Questions with Answers
Updated on Sep 18, 2023 18:34 AM | #NEET
Quick Facts
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Deficiency Symptoms of Essential Elements is considered one of the most asked concept.
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19 Questions around this concept.
Solve by difficulty
EASYManganese is required in:
Which one of the following elements in plants is not remobilized?
Necrosis is seen in plants due to the deficiency of
Which of the following statements can best explain the term critical concentration of an essential element?
Which of the following elements is not remobilized in plants?
An element playing important role in nitrogen fixation is:
Concepts Covered - 0
Deficiency Symptoms of Essential Elements
- The concentration of the essential element below which plant growth is retarded is termed as critical concentration.
- The element is said to be deficient when present below the critical concentration.
- The kind of deficiency symptoms shown in plants include chlorosis, necrosis, stunted plant growth, premature fall of leaves and buds, and inhibition of cell division
- Chlorosis is the loss of chlorophyll leading to yellowing in leaves.
- This symptom is caused by the deficiency of elements N, K, Mg, S, Fe, Mn, Zn and Mo.
- Necrosis, or death of tissue, particularly leaf tissue, is due to the deficiency of Ca, Mg, Cu, K. Lack or low level of N, K, S, Mo causes inhibition of cell division.
- Some elements like N, S, Mo delay flowering if their concentration in plants is low
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