Grade 4 Science Plants

Parts of plants that also known as primary organs are...

• roots

• trunk/stems

• leaves

• flower

Parts of plants that also known as secondary organs are...

• roots

• fruits

• leaves

• flower

• seeds

Characteristics of root are..

• Roots are usually underground (although in some plants can be

  found above the ground)

• Roots are usually green in color

• Root’s tips grow continuously, pointed in shape to easily grow deeper into the soil

• as the place where photosynthesis occurs

Function of root are...

• support and strengthen the plant so it can firmly stand on the soil

• absorb water and minerals from the soil, and transport them to the stems

• as the place where guttation takes place

• as the part of the plant that will grow into new plants.

Type of roots that consists of a primary root along with its branches (lateral roots) and smaller roots or fibers.

• Tap Roots

• Fibrous Roots

• Specialized Roots

Type of roots that have large numbers of thin branching roots growing from the stem of a plant, with similar sizes.

• Tap Roots

• Fibrous Roots

• Specialized Roots

Types of roots that can be modified to adapt with the needs and their environment.

• Tap Roots

• Fibrous Roots

• Specialized Roots

These roots grow from the upper parts of tree branches and hang in the air. The function of these roots is to absorb water vapor and gases from the air.

• Hanging Roots

• Pneumatophores

• Clinging Roots

• Stilt Roots

Example of hanging roots..

• Banyan Tree

• mangrove tree

• betel, pothos, and parasitic plants.

• Pandanus

An aerial roots which grow out from the soil upward. This type of root functions as the respiratory organ of the

plant.

• Pneumatophores

• Hanging Roots

• Clinging Roots

• Stilt Roots