Plant Physiology - Mineral Nutrition

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Q1. Which of the following is NOT a function of iron in plants? (2022)

Solution:

Iron is not directly involved in cell wall formation; it primarily functions in chlorophyll synthesis and electron transport.

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Q2. Iron deficiency in plants typically leads to which of the following symptoms? (2022)

Solution:

Iron deficiency causes interveinal chlorosis, where the areas between the veins of leaves turn yellow.

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Q3. What is the function of phosphorus in plants? (2021)

Solution:

Phosphorus is crucial for energy transfer in plants, particularly in the form of ATP (adenosine triphosphate).

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Q4. Which nutrient is essential for the formation of nucleic acids? (2020)

Solution:

Phosphorus is essential for the formation of nucleic acids (DNA and RNA), which are vital for genetic information and protein synthesis.

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Q5. Calcium is important for which of the following plant processes? (2020)

Solution:

Calcium is vital for maintaining cell wall stability and structure, as well as signaling within the plant.

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Q6. Calcium is important for which of the following processes in plants? (2020)

Solution:

Calcium is vital for cell division and is a key component of cell walls, providing structural stability.

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Q7. Calcium is primarily involved in which of the following processes? (2020)

Solution:

Calcium is crucial for maintaining cell wall stability and structure in plants.

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Q8. Which of the following elements is considered a secondary macronutrient? (2023)

Solution:

Calcium is classified as a secondary macronutrient, important for cell wall structure and stability.

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Q9. Deficiency of which nutrient causes chlorosis in plants? (2022)

Solution:

Nitrogen deficiency leads to chlorosis, which is the yellowing of leaves due to insufficient chlorophyll production.

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Q10. Sulfur is a component of which of the following? (2022)

Solution:

Sulfur is a key component of certain amino acids, which are the building blocks of proteins.