Flowering Plants: Structure and Organization. Unit 10: Plants. Flowering plants usually have three vegetative organs: the roots, the stem and the leaves. The roots are part of the root system; the stem and leaves are part of the shoot system.
Unit 10: Plants
Flowering plants usually have three vegetative organs: the roots, the stem and the leaves.
The root system in the majority of plants is located underground.
The shoot system of a plant is composed of the stem, branches and leaves.
Horizontal, underground stems are known as rhizomes. Rhizomes send out roots below and shoots above at nodes as it grows. Rhizomes allow plants to increase their territory.
Flowering plants are divided into two groups, depending on the number of cotyledons, or seed leaves in the embryonic plant.
Cotyledons of eudicots supply nutrients for seedlings, but the cotyledon of monocots acts as a transfer tissue, and the nutrients are derived from the endosperm before the true leaves begin photsynthesizing.Monocots vs. Eudicots (dicot)
Eudicots- the primary root or main root grows straight down and remains the dominant root of the plant.
1. List the three vegetative organs in a plant and state their major functions.
A flowering plant has the ability to grow its entire life because it possesses meristematic (embryonic) tissue.
Flowering plants have apical meristem plus three types of primary meristem.
Xylem and Phloem are considered complex tissues because they are composed of two or more kinds of cells.
The conducting cells of phloem are specialized parenchyma cells called sieve-tube members arranged to form a continuous sieve tube.
The companion cells are also believed to be involved in the transport function of phloem.Vascular Tissue
List three specialized tissues in a plant and the cells that make up these tissues.