External Structures of Plants

The edge of the leaf blade is called ______. `

• midrib
• margin
• petiole
• leaf base

The central vein is also called _____.

• midbrib
• margin
• apex
• base

The arrangement of leaves according to arrangement of leaves phyllotaxis wherein only one leaf is attached to each node

• spiral or alternate
• opposite
• whorled

The arrangement of leaves according to arrangement of leaves phyllotaxis wherein two leaves are attached to a node

• spiral or alternate
• opposite
• whorled

The arrangement of leaves according to arrangement of leaves phyllotaxis wherein three or more leaves are attached to a node

• spiral or alternate
• opposite
• whorled

The arrangement of leaves according to the number of leaves attached to a petiole wherein a single blade is attached to a petiole.

• pinnately compound
• bipinnately compound or doubly compound
• simple
• palmately compound

The arrangement of leaves according to the number of leaves attached to a petiole wherein leaflets are attached along a central stalk

• simple
• pinnately compound
• palmately compound
• doubly compound

Tags

NGSS.MS-LS4-2

Leaflets are further subdivided into smaller leaflets such as malunggay or acacia.

• simple
• pinnately compound
• palmately compound
• doubly compound

• parallel venation
• palmately netted venation
• pinnately netted venation

• parallel venation
• palmately netted venation
• pinnately netted venation