Biology
Name any three minerals whose deficiency causes diseases in plants. Give the symptoms of each deficiency.
Answer
The table below lists the three minerals along with the symptoms of deficiency of each:
| Mineral | Major Deficiency Symptoms |
|---|---|
| Nitrogen (N) | Yellowing of leaves, wrinkling of cereal grains. |
| Phosphorus (P) | Purple and red spots on leaves, delay in seed germination. |
| Potassium (K) | Poor growth with reduced rate of transpiration. |
Related Questions
The set up shown alongside was kept in sunlight for an hour. It was observed that drops of water appeared on the inside surface of the polythene bag.
(a) Name the process which is being demonstrated.
(b) Why was the pot with its soil left uncovered by the polythene bag?
(c) Why was the pot left in sunlight?
(d) Suppose that the pot in this experiment was placed inside a dark room instead of placing it in sunlight for some time. What difference would be noticed?
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(b) Unicellular outgrowth
(c) Part that is freely permeable
(d) Part that is semi-permeable