Nutritional Requirements of Plants

Review Questions

For an element to be regarded as essential, all of the following criteria must be met, except:

  1. No other element can perform the function.
  2. The element is directly involved in plant nutrition.
  3. The element is inorganic.
  4. The plant cannot complete its lifecycle without the element.

Hint:

C

The nutrient that is part of carbohydrates, proteins, and nucleic acids, and that forms biomolecules, is ________.

  1. nitrogen
  2. carbon
  3. magnesium
  4. iron

Hint:

B

Most ________ are necessary for enzyme function.

  1. micronutrients
  2. macronutrients
  3. biomolecules
  4. essential nutrients

Hint:

A

What is the main water source for land plants?

  1. rain
  2. soil
  3. biomolecules
  4. essential nutrients

Hint:

B