Primary Stem Structure and Development

These flashcards cover key concepts, structures, and types of tissues involved in the primary stem structure and development of plants.

Epidermis

The outer layer of cells covering the plant.

Cuticle

A waxy layer that helps reduce water loss from the epidermis.

Cortex

The layer of ground tissue between the epidermis and vascular tissue.

Parenchyma

A type of ground tissue that is involved in storage, secretion, and photosynthesis.

Collenchyma

A type of ground tissue that provides flexible support to young stems and leaves.

Sclerenchyma

A type of ground tissue that provides rigid support, often with lignified cells.

Xylem

A type of vascular tissue responsible for the transport of water and minerals.

Phloem

A type of vascular tissue responsible for the transport of sugars and other metabolic products.

Node

The part of the stem where leaves or buds emerge.

Internode

The segment of the stem between two nodes.

Axillary meristem

A region of growth at the axil of a leaf, giving rise to axillary buds.

Axillary buds

Buds located in the axil of a leaf, capable of developing into branches or flowers.

Blade

The broad, flat part of a leaf.

Petiole

The stalk that attaches the leaf blade to the stem.

Simple leaf

A leaf with a single blade.

Compound leaf

A leaf consisting of multiple leaflets.

Leaf vein patterns

The arrangement of veins in a leaf that varies and influences photosynthesis.