Passage VI

Most plants require specific substances known as minerals to grow and reproduce. The following table provides a list of the minerals essential to flowering plants and a description of their functions. The first seven listed are called macronutrients, since they are present in large quantities in the plants. The other minerals are called micronutrients because they are often present in trace amounts. The number of pounds of each mineral required to grow 100 bushels of corn is also depicted in the table.

Table adapted from William T.Keeton, Biological Science.©1980 by W. W. Norton & Company.

30. A scientist hypothesized that some minerals are required in minute quantities and are used as components of enzymes by flowering plants. The data for which of the following minerals would support this hypothesis?

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

There are two important contents in the question stem, the first is minute quantities, and the other is components of enzyme. Corresponding to the zinc in the table, the first content is the trace trace, and the second function includes the component of enzyme