Which of the following micronutrients is an important constituent of a protein involved in the transfer of electrons and is required in a larger amount than other micronutrients?
Important Questions on Mineral Nutrition
What is the importance of iodine in our body?
Match the following
| List - I | List - II | ||
| (a) | Chlorine | (i) | Helps to maintain an anion - cation balance and is involved in protein synthesis |
| (b) | Sulphur | (ii) | Helps in determining the solute concentration. |
| (c) | Potassium | (iii) | It is the main constituent of several coenzymes and vitamins |
| (d) | Nickel | (iv) | Found to induce disease resistance in some plants. |
| (v) | Structural component of Cytochrome oxidase |
The correct answer is
Consider the following statements i, ii, and iii regarding criteria for essentiality of the nutrients in plants:
i. The presence of essential element is must for plants to complete their life cycle.
ii. The role of the element can be replaced by another in their life cycle.
iii. The elements must be directly involved in the metabolism of the plant.
Choose the correct statement/s:
Given mineral ions essential for the physiological activities of plant
Nitrogen metabolism
Synthesis of Auxins
Activation of IAA oxidase enzyme
Formation of Mitotic spindle
Answers respectively
Match the following concerning essential elements and their functions in plants
| (a) | Iron | (i) | Photolysis of water |
| (b) | Zinc | (ii) | Pollen germination |
| (c) | Boron | (iii) | Required for chlorophyll biosynthesis |
| (d) | Manganese | (iv) | IAA biosynthesis |
Select the correct option.
| List I | List II |
| A. Iron | I. Synthesis of auxin |
| B. Zinc | II. Component of nitrate reductase |
| C. Boron | III. Activator of catalase |
| D. Molybdenum | IV. Cell elongation and differentiation |
Choose the correct answer from the options given below:
Match List -I with List-Il.
| List - I | List - II | ||
| (a) | Manganese | (i) | Activates the enzyme catalase |
| (b) | Magnesium | (ii) | Required for pollen germination |
| (c) | Boron | (iii) | Activates enzymes of respiration |
| (d) | Iron | (iv) | Functions in splitting of water during photosynthesis |
Choose the correct answer from the options given below:
