Question

Diagram or describe the primary organ structures of the vascular plant body, including descriptions of the major tissue/cell types found within these structures as well as the primary functions of these organs.

Answer 1

** Functions and properties written in brackets.

The vascular plant body consists of two organ structures: -

1. Shoot

Functions: - Reproduction, Storage, Photosynthesis, Transport, Formation and transport of hormones (auxins, cytokinins, ethylene).

Cell types found: - Parenchyma (least specialized, always living, have a large vacuole), Collenchyma (unevenly thickened but still living at the time of maturity) and Sclerenchyma (dead cells with lignified walls).

Tissues found:- Xylem(transport of water and minerals) and Phloem (Transport of food)

Organs: - Leaves (photosynthesis) and stamens (Male reproductive organs), Carpel (Female reproductive organ).

Organ system; - Flowers (Pollination)

2. Root

Functions: - Absorption of water and minerals, Storage of food, Transport of water and minerals, Formation and transport of certain hormones (auxins, gibberellins)

Cell types found: - Parenchyma (least specialized, always living, have a large vacuole), Collenchyma (unevenly thickened but still living at the time of maturity) and Sclerenchyma (dead cells with lignified walls).

Tissues found: - Xylem (transport of water and minerals) and Phloem (Transport of food)

Organ system: - Some have root nodules (symbiotic nitrogen fixation)