Macronutrients
Macronutrients: Overview
This topic covers concepts, such as, Role of Phosphorus in Plants, Sources of Phosphorus in Plants, Sources of Sulphur in Plants & Deficiency Symptoms of Sulphur in Plants etc.
Important Questions on Macronutrients
The mineral nutrient calcium is absorbed by the plants in the form of _____.
Match the element (list-I) with component co-factor (list-II).
| List-I (Element) | List-II (Component co-factor) | ||
| (A) | Magnesium | (I) | Energy currency of the cell |
| (B) | Sulphur | (II) | Enzyme catalysing biological nitrogen fixation |
| (C) | Phosphorus | (III) | Enzyme catalysing phosphorylation of glucose |
| (D) | Molybdenum | (IV) | Enzyme catalysing decarboxylation of oxalosuccinic acid |
| (V) | Amino acid coded by AUG |
Deficiency of which element in the plant causes yellowing of intravenous regions of leaves.
Which element is concerned with the regulation of turgidity in the guard cells?
Among the following given options, deficiency symptoms of which element appears first in apical buds?
Deficiency of which element in the soil causes dieback disease in Lemon (Citrus).
Potassium ion performs which of the following functions in plants?
I. It involved in protein synthesis.
II. It helps in photolysis of water during photosynthesis.
III. Essential for the formation of chlorophyll.
IV. Maintains anion-cation balance.
V. Required for pollen germination.
The correct combination is
Sulphur is an important nutrient for optimum growth and productivity in
Which of the following is the major source of phosphorus?
Name the process by which phosphorus moves to the root surface of plants.
What are sources of phosphorus for crops?
Choose the correct answer from the alternatives given. Phosphorus deficiency in plants causes?
What are the effects that occurs on plants due to deficiency of phosphorous? Name it.
Which one of the following is not a source for the calcium in the plant body?
Why does plant absorb calcium from the soil in the form of calcium ions?
Magnesia is used in the fertilizers as a good source of magnesium.
Which substance is a good source of a macronutrient responsible for the formation of a ring structure in the chlorophyll?
