Respond to statements 82–85 with reference to the five plant
macronutrients listed below.
a. nitrogen
b. potassium
c. magnesium
d. phosphorus
M 82. This nutrient helps to maintain turgor pressure.
M 83. This nutrient is an extremely important part of ATP.
M 84. This nutrient is an important part of the backbone
structure of DNA.
M 85. This nutrient is essential to formation of chlorophyll
and acts as a cofactor for many enzymes.
Answers: 82. b, 83. d, 84. e, 85. c
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