Tag: macronutrients and micronutrients

Questions Related to macronutrients and micronutrients

Chlorosis is caused by the deficiency of.

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Chlorine and boron

  2. Nitrogen and calcium

  3. Magnesium and iron

  4. Potassium and phosphorus

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Correct Option: A

Apoptosis is programmed cell death characterised by the formation of apoptotic bodies whereas necrosis characterised by bursting of cells. Which of the following condition/s lead/s to necrosis ?
i) Gaps and nicks formed in DNA during replication cannot be repaired.
(ii) Developing neurons fail to make synapses with neighbouring cells.
(iii) Heart muscle cells damaged by oxygen depletion followed by cardiac infarction. 

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. (i) and (ii)

  2. (ii) and (iii)

  3. (i) only

  4. (iii) only

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Correct Option: A

Ribulose phosphate is a ____________.

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Aldose sugar

  2. Ketose sugar

  3. Disaccharide

  4. Trisaccharide

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Correct Option: A

Which component of the ETS is carrier of electron as well as proton?

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. UQ

  2. Cyt-a

  3. Cyt-b

  4. Cyt-f

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Correct Option: A

Which element is common to nucleic acids, phospholip ATP, ADP, NADPH, NAD, FAD?

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Calcium

  2. Boron

  3. Zinc

  4. Phosphorus

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Correct Option: A

Which one of the following statements can best explain the term critical concentration of an essential element? 

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Essential element concentration below which plant growth is retarded

  2. Essential element concentration below which plant growth becomes enhanced

  3. Essential element concentration below which plant remains in the vegetative phase

  4. None of the above

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Correct Option: A
Explanation:
Critical Concentration is the term which is used to define the concentration of essential elements below which the growth of plant is Retarded or Reduced. Also, if the concentration of essential elements rise above the critical concentrations.  it leads to Toxicity. So, the correct answer is "Essential elements concentration below which plant growth is retarded."

You observed that a plant's younger leaves, not the older ones, are yellowing. You recall that the cause of plant sickness can be diagnosed by which leaves are yellowing.
What is the most likely cause of your plant's blight?

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Too much shade

  2. Lack of nitrogen-fixing Rhizobium bacteria

  3. A deficiency in a mobile mineral nutrient.

  4. A deficiency in a non-mobile mineral nutrient.

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Correct Option: D
Explanation:

If there is a deficiency of mobile nutrients, the symptoms are first seen in the leaves. Mobile and immobile nutrients refer to the transportability of these (K), (Mg), (Cl), (Zn) and (Mo).

So, the correct option is 'A deficiency in a non-mobile mineral nutrient'.

Buds that produced lateral branches develop at

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Internodes

  2. Apical meristems

  3. Auxillary meristems

  4. Nodes

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Correct Option: D

Buds typically occur at

botany mineral nutrition in plants deficiency diseases and symptoms deficiency symptoms macronutrients and micronutrients

  1. Leaf bases

  2. Leaf axils

  3. Tips of stems and roots

  4. Tips of branches and leaf bases

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Correct Option: D