What are some deficiency symptoms of potassium in plants?
Important Questions on Plant Growth and Mineral Nutrition
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:
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
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
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:
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.
Which of the following is the function of potassium?
(1) Cation-anion balance in cell.
(2) Involved in protein synthesis.
(3) Activation of enzyme.
(4) Opening and closing of stomata.
(5) Maintenance of turgidity of cell.
