MEDIUM
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Which of the following is the mismatched pair?

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Important Questions on Mineral Nutrition

HARD

Mention the No. of given physiological activities of plant have been essentially controlled by Zinc, Boron, Sulphur and Calcium respectively

a) Synthesis of auxin
b) Photolysis of H2O
c) Methionine constituent
d) Stability of protein
e) Uptake of calcium
f) Regulation of metabolic activities
g) Pollen germination
h) Cell elongation
i) Cell differentiation

EASY
Lack or low levels of Potassium, Nitrogen, Sulphur and Molybdenum causes ___.
MEDIUM

Given mineral ions essential for the physiological activities of plant
A) Nitrogen metabolism
B) Synthesis of Auxins
C) Activation of IAA oxidase enzyme
D) Formation of Mitotic spindle

Answers respectively

MEDIUM

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:

EASY
Deficiency symptoms of nitrogen and potassium are visible first in:
HARD

Match the following:

  List I   List II   List III
A) Fe i) Nitrogenase I) Nitrate reductase
B)  Mo ii) Cytochrome C oxidase II) Automobile exhaust
C)  Cu iii) Forest fires III) Formation of chlorophyll
D) NO, NO2 iv) Catalase IV) Redox reactions

The correct match is

EASY

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 'C' oxidase

The correct answer is

MEDIUM

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:

EASY
In which of the following forms is iron absorbed by plants?
MEDIUM

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.

EASY

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

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EASY
Minerals known to be required in large amounts for plant growth include:
EASY
Select the pairs of sedimentary biogeochemical cycles.
I. Hydrogen cycle and water cycle
II. Phosphorus Cycle and sulphur cycle
III. Calcium cycle and magnesium cycle
IV. Carbon cycle and nitrogen cycle
EASY
Which of the following elements helps in maintaining the structure of ribosomes?
EASY
The macronutrient which is an essential component of cell organic compounds, yet not obtained by plants from soil, is
EASY
The deficiencies of micronutrients, not only affects the growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport?