Tag: essential and non-essential mineral elements

Questions Related to essential and non-essential mineral elements

Oxygen $(O _2)$ is utilised by an organism to?

  1. Perform formation of nutritive molecules

  2. Breakdown the nutrient molecules

  3. Obtain nourishment from the food

  4. Burn the organic compounds directly


Correct Option: A

The Hydroponics is most closely related to which among the following?

  1. Grafting of Plants

  2. Water conservation

  3. Study of Vegetable

  4. Soilless culture of Plants


Correct Option: D

Mycorrhizal fungi mobilize nutrients from soils to roots of plants. The nutrient in question is?

  1. Organic acid

  2. Phosphorus

  3. Manganese

  4. Potassium


Correct Option: A

Regarding the mineral nutrition of plants, which one of the following statements is correct?

  1. The availability of iron to plants decrease with the increase of acidity of the soil

  2. The presence of $CO _2$ dissolved in the soil water reduces the solubility of carbonates of lime in it

  3. Molybdenum is a constituent of nitrate reductase system

  4. Sulphur is a constituent of phenylalanine


Correct Option: A

Which one of the following is popularly associated with the name of JustusĀ Liebig?

  1. Law of the Minimum

  2. Law of Tolerance

  3. Ecological Niche

  4. Speciation


Correct Option: A

Which one of the following statements correctly fines the term hydroponics?

  1. Growing plants in soil less culture

  2. Culture of fishes by varying the water supply

  3. Growing planktons on the surface of water

  4. Growing plants in sterilized soil


Correct Option: A

Match List-I(mode of nutrition in bacteria) with List-II(examples of bacteria) and select the correct answer.

List-I List-II
a. Photoautotroph $1$. Escherichia coli
b. Chemoautotroph $2$. Rhodospirillum rubrum
c. Photocheterotroph $3$. Chlorobium sp.
d. Chemoheterotroph $4$. Nitrosomonas sp.
  1. A-$4$, B-$3$, C-$2$, D-$1$

  2. A-$3$, B-$4$, C-$1$, D-$2$

  3. A-$3$, B-$4$, C-$2$, D-$1$

  4. A-$4$, B-$3$, C-$1$, D-$2$


Correct Option: A

Match List I (nutrient) with List II(deficiency symptom in leaf) and select the correct answer using the codes given the lists.

List-I List-II
a. Phosphorus $1$. Lower leaves yellow between veins; purplish color of petiole
b. Potassium $2$. Discoloration of leaf, starting from margins and extending towards mid-rib
c. Manganese $3$. Dead tissues around the margins and in between the veins of the leaves
d. Calcium $4$. Development of chlorosis in patches in dicots and in stripes in monocots
  1. A-$1$, B-$2$, C-$3$, D-$4$

  2. A-$2$, B-$1$, C-$3$, D-$4$

  3. A-$1$, B-$2$, C-$4$, D-$3$

  4. A-$2$, B-$1$, C-$4$, D-$3$


Correct Option: A

Choose the correct answer from the alternatives given.
The mineral element essential for nitrogen merabolisrn is:

  1. Zn

  2. $Mn^{2+}$

  3. Mo

  4. $Al^{3+}$


Correct Option: C
Explanation:

Mo is a cofactor for enzyme nitrogenase, which is the most crucial enzyme for nitrogen fixation.

So, the correct option is 'Mo'

The mineral nutrient mainly concerning with apical meristematic activity is _________.

  1. K

  2. Ca

  3. N

  4. S


Correct Option: A