MQ # 1: ROOTS

These are cylindrical structures which are usually located beneath the surface of the soil through which materials move from the soil to various part of the plant

The first root formed which is the extension of the embryonic root or radicle which is the growing tip of the hypocotyl.

• Primary Root

• Secondary Root

• Tertiary Roots

• Embryonic Root

This is also called the embryonic stem.

• Radicle

• Hypocotyl

• Epicotyl

• Plumule

Statement 1: The diffuse root system consists of several main roots that branch to form a dense mass of intermeshed medial roots.

Statement 2: There is a prominent enlarged primary root in diffuse root system.

• Both statements are correct.

• Both statements are incorrect.

• First statement is true and second statement is false.

• First statement is false and second statement is true.

A thimble-shaped region that protects the growing tip of the root.

• Root tap system

• Root cap region

• Procambium

• Protoderm

These are aggregation of root hairs.

These are meristematic cells between the primary xylem and the primary phloem.

• Phellem

• Phellogen

• Cork cambium

• Vascular cambium

A modified or specialized function of the root that pertains to the formation of root nodules containing bacteria in their cells.

• N fixation

• N2 fixation

Pseudopanax arboreus is an example of what modified root structure?

• Taproots

• Brace roots

• Prop roots

• Clinging roots

This is the region derived from the procambium and which forms the central core of the root.

• Middle Region

• Inner Region

• Outer Region

• Cortex