Plant Nutrition and Metabolism
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Questions and Answers

What is the primary function of nitrogen in plant growth?

  • To enhance the production of chlorophyll and other pigments
  • To promote root growth and development
  • To regulate the transport of water and nutrients in the plant
  • To facilitate the synthesis of proteins, hormones, and enzymes (correct)

What is the consequence of excessive nitrogen in plants?

  • Increased water absorption and transport
  • Enhanced fruit and flower production
  • Delayed flowering and fruiting (correct)
  • Increased root growth and development

What is the primary function of magnesium in plant growth?

  • To regulate the transport of water and nutrients in the plant
  • To facilitate the synthesis of proteins and enzymes
  • To promote the growth of stems and leaves
  • To act as a structural component of chlorophyll and facilitate photosynthesis (correct)

What is the main difference between organic and inorganic fertilizers?

<p>Organic fertilizers are derived from plant and animal materials, while inorganic fertilizers are not (C)</p> Signup and view all the answers

What is the consequence of a magnesium deficiency in plants?

<p>Yellowing and wilting of leaves (B)</p> Signup and view all the answers

What is the primary characteristic of inorganic fertilizers?

<p>They dissolve readily in water and are immediately available to plants (C)</p> Signup and view all the answers

What is a consequence of excessive application of inorganic fertilizers on soil?

<p>Increased soil acidity (D)</p> Signup and view all the answers

What is a problem associated with the storage and application of some nitrogen fertilizers?

<p>Emissions of the greenhouse gas nitrous oxide (D)</p> Signup and view all the answers

What can happen to ecosystems due to the high solubility of inorganic fertilizers?

<p>Eutrophication (increase in chemical nutrients) (B)</p> Signup and view all the answers

Why is it recommended to calculate soil nutrient content and crop requirements before applying inorganic fertilizers?

<p>To minimize the effects of fertilizer overuse (B)</p> Signup and view all the answers

What can be a consequence of excessive organic fertilizer use?

<p>Nitrate leaching or runoff of soluble organic compounds (B)</p> Signup and view all the answers

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