Exam 5: Roots and Soils

Branch roots arise from buds initiated on the outer surface of a root.

Which of the following tissues is common in roots but not in stems?

Contractile roots are common in woody plants.

Which statement about mycorrhizae is INCORRECT?

The best soil for plant growth is

Rhythmic cell divisions in young roots often

Grasses generally produce a fibrous root system.

The function of mycorrhizae fungi is to facilitate uptake and availability of water and minerals, especially phosphorous.

The most abundant cell type in periderm is

The tissue in which a cork cambium first develops in woody dicot roots is the

The term saprophyte is correctly applied to plants such as orchids that grow on other plants and obtain water and nutrients from the air and/or rain.

Soil parent material extends down to bedrock.

Liming is used to counteract soil acidity.

Buds that develop on roots are referred to as

Water that drains out of the pores in soils after a rain is called

One unique function of the root cap is

This tissue (region)is present in monocot roots but absent in dicot roots.

Typical root systems form up to _____________ of the total dry biomass of a plant.

When trees undergo root grafting with one another, an unfortunate result can be

Parts of the pericycle and parenchyma between the arms of xylem and patches of phloem in young roots of many dicots and conifers become