Unit 4 TEST ~ Roots & Soil

Front

What is humus?

Back

Partially decayed organic matter.

Front

What is the primary function of roots in plants?

Back

Absorb and transport water/nutrients to the stem/leaves and anchor the plant.

Front

What are layers of soil also known as?

Back

Soil Horizons.

Front

Which region of plant roots is involved in the root's gravitational response?

Back

Root cap.

Front

In which area of the root can cell division be found?

Back

Region of cell division.

Front

What is the role of the root cap?

Back

Protects the growing tip of the root and helps in the root's gravitational response.

Front

Define soil profile.

Back

A vertical section of soil that shows all its layers.

Front

What is the significance of soil horizons?

Back

They represent different layers of soil with distinct characteristics.

Front

What is loam?

Back

A soil type that is a mixture of sand, silt, and clay, ideal for plant growth.

Front

What is the function of the region of elongation in roots?

Back

Cells in this region elongate, allowing the root to grow longer.