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Questions and Answers
Why is atmospheric nitrogen not directly available to plants?
Why is atmospheric nitrogen not directly available to plants?
- It is toxic to plants in its atmospheric form.
- Plants lack the necessary enzymes to break it down.
- It is present in very low concentrations in the atmosphere.
- It must be converted to a 'fixed' form such as ammonia. (correct)
Which of the following macronutrients primarily supports strong stem growth and the movement of water in plants?
Which of the following macronutrients primarily supports strong stem growth and the movement of water in plants?
- Nitrogen
- Phosphorus
- Potassium (correct)
- Sulfur
What role do certain bacteria play in making atmospheric nitrogen available to plants?
What role do certain bacteria play in making atmospheric nitrogen available to plants?
- They release nitrogen from the soil.
- They convert nitrogen into a 'fixed' form, like ammonia. (correct)
- They convert nitrogen into carbon dioxide.
- They absorb nitrogen directly into their tissues.
Which of the following is a primary function of phosphate in plant cells?
Which of the following is a primary function of phosphate in plant cells?
In what range is the typical concentration of macronutrients found in plant tissue on a dry matter basis?
In what range is the typical concentration of macronutrients found in plant tissue on a dry matter basis?
Which of these elements is considered a secondary macronutrient for plants?
Which of these elements is considered a secondary macronutrient for plants?
Which of the following describes the typical concentration of micronutrients in plant tissue?
Which of the following describes the typical concentration of micronutrients in plant tissue?
Which of the following is NOT considered a main component of plants?
Which of the following is NOT considered a main component of plants?
What role does the macronutrient nitrogen primarily play in plant development?
What role does the macronutrient nitrogen primarily play in plant development?
What is the key difference between how plants obtain carbon, hydrogen, and oxygen compared to nitrogen?
What is the key difference between how plants obtain carbon, hydrogen, and oxygen compared to nitrogen?
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