
Which of the following is the mismatched pair?
Mineral elements | Form that is absorbed by plant |
Nitrogen |
Mineral elements | Form that is absorbed by plant |
Phosphorus |
Mineral elements | Form that is absorbed by plant |
Sulphur |
Mineral elements | Form that is absorbed by plant |
Iron |

Important Questions on Mineral Nutrition
Mention the No. of given physiological activities of plant have been essentially controlled by Zinc, Boron, Sulphur and Calcium respectively
Synthesis of auxin
Photolysis of
Methionine constituent
Stability of protein
Uptake of calcium
Regulation of metabolic activities
Pollen germination
Cell elongation
Cell differentiation


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 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 | List | List | |||
A) | Nitrogenase | Nitrate reductase | |||
B) | Cytochrome C oxidase | Automobile exhaust | |||
C) | Forest fires | Formation of chlorophyll | |||
D) | Catalase | Redox reactions |
The correct match is

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:


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.

Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.


I. Hydrogen cycle and water cycle
II. Phosphorus Cycle and sulphur cycle
III. Calcium cycle and magnesium cycle
IV. Carbon cycle and nitrogen cycle







