Exam 36: Roots and Mineral Nutrition

Irrigation can cause salt to accumulate in the soil, a process known as:

The large intercellular spaces, common features of the root cortex, provide:

The roots of certain epiphytes are photosynthetic.

Explain the ecological significance of each component of soil.

The partly decayed organic portion of soil is called:

The root cortex is composed mostly of collenchyma cells.

In the establishment of rhizobia in a legume, infection threads are found in the:

The removal of dissolved materials from soil by percolating water is called illuviation.

While working in a soil-testing laboratory, you are given a sample of a "typical" soil to analyze. Which of the following do you correctly conclude is present in the largest amount?

The symplast is the continuum of living cytoplasm.

Lateral roots arise from cells of the cortex.

Diagram and label a cross section of a primary eudicot root. Identify the function of three of the labeled tissues.

Which element is a macronutrient in plants?

In eudicot roots, the last mode of water and mineral transport occurs from the ____ to ______.

Identify two plant macronutrients and two micronutrients and provide a physiological role for each.