Mineral nutrition practice · Medium

The term ‘outer space’ represents …A…, while ‘inner space’ represents …B… with reference to absorption of minerals
Identify A and B to complete the given statement

Assertion: The main constituent of several coenzymes, vitamins and ferredoxin is sulphur.

Reason: Sulphur is present in two amino acids valine and cysteine.

Identify the elements which functions as the components of biomolecules
I. Hydrogen II. Magnesium
III. Oxygen IV. Nitrogen

$M{g^{2 + }}$ is an activator of
I. alcohol dehydrogenase
II. nitrogenase
III. ribulose bisphosphate carboxylase oxygenase
IV. phosphoenol pyruvate carboxylase Choose the correct option

What effect can be seen on the plant growth and reproduction in the absence of essential mineral element?

Name the minerals responsible for maintaining cation-anion balance in the plant cells

What is the major function of air stone?

Addition of chelating agent to hydroponics is necessary for

Which of the given prokaryotes fixes nitrogen symbiotically as well as in free living state?

Plants growing near the nuclear test sites take up and accumulate which of the following elements?

The deficiencies of micronutrients not only affects 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?

Chlorosis in plants is generally due to deficiency of

Potassium is required by which of the following regions of plants
I. Meristematic tissues II. Buds
III. Leaves IV. Root tips

Which of the following is not caused by deficiency of mineral nutrition

In root nodules of legumes, leghaemoglobin is important because it

Which of the following is not caused by deficiency of mineral nutrition –

Which of the following nutrient is required for auxin synthesis?

A small aquatic plant was put in each of the petri dishes- X, Y and Z, containing different culture solutions. After six weeks, the plant in dish-X had the same number of leaves as it had previously and were all small and yellowish. Plant in dish-Y had more leaves of normal size and dark green colour. Plants in dish-Z had more leaves of normal size but very pale. Which of the following show the elements missing the culture?

Which one of the following is an amide involved in nitrogen assimilitaion by plants?

Statement I: Nitrogen is a limiting nutrient in agriculture ecosystem but not is case of natural environment due to its abundance in the atmosphere.
Statement II: In nature, while lighting provides enough energy for nitrogen fixation same is not true for UV rays.

I. The practice of growing plants in nutrient enriched water without soil is called ….
II. The system of growing plants with their roots bathed in nutrient mist (a cloud of moisture in air) is called…..
Complete the given statement (I and II) with the correct pair of options given below

By applying which of the following practices, contamination of hydroponics plants can be reduced?

Concentration of minerals in the soil is usually ................ than the concentration of minerals in the root?

Humus is essential for plant growth because

The function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to

Select the mismatch:

Ammonia synthesis by nitrogenase requires?

An essential element is that which

Assertion : Deficiency of sulphur causes chlorosis in plants.

Reason : Sulphur is a constituent of chlorophyll, proteins and nucleic acids.

Assertion: As per carbonic acid exchange theory of mineral salt absorption, $\mathrm{CO}_2$ released during respiration of roots forms $\mathrm{H}_2 \mathrm{CO}_3$ when dissolved in soil water.

Reason: $\mathrm{H}_2 \mathrm{CO}_3$ dissociates into $\mathrm{H}^{+}$and $\mathrm{HCO}_3^{-}$ ions, where $\mathrm{H}^{+}$ions exchange with anions adsorbed on clay particles.