12 Questions
What percentage of a plant's composition is made up of water?
70 - 90 %
What is the main function of essential plant nutrients?
To facilitate the normal growth cycle of the plant
Which of the following is classified as a macronutrient?
Nitrogen
Which element's essentiality was established in 1987?
Nickel
What is the classification of calcium and magnesium?
Secondary macronutrients
How many essential plant nutrients have been identified?
More than 15, but the list may not be final
What is the primary function of carbon in plants?
To form the backbone of plant molecules
Which element is taken up by plants in the form of NO3- and NH4+?
Nitrogen
What is the typical range of sulfur in plants in terms of percentage of dry matter?
0.2 – 1.0
Who discovered the essentiality of iron in 1860?
Not mentioned in the text
What is the function of oxygen in plants?
To provide energy for cellular respiration
What is the typical range of copper in plants in terms of parts per million (ppm) of dry matter?
5 - 15
Learn about the composition of plants, including water and organic compounds, and discover the essential plant nutrients required for a normal life cycle. Test your knowledge of mineral and non-mineral nutrients, including carbon, oxygen, and hydrogen.
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