HORTICULTURE

Detailed explanation-1: -The main structures or ‘organs’ found in plants are the leaves, stems and roots. They are made up from groups of specialised tissues that have structures suited to the jobs they perform.

Detailed explanation-2: -The structures within roots, stems, and leaves are made up of three tissue systems: dermal, vascular, and ground tissue. The dermal tissue system is the “skin” or an outer protective covering. The outer layer, called the epidermis, is covered with a cuticle that prevents water loss.

Detailed explanation-3: -The plant’s vascular tissues-xylem and phloem-transport water to the leaves and carry glucose away from the leaves. Stomata, regulated by guard cells, allow gases to pass in and out of the leaf. Cells in the mesophyll of the leaf have numerous chloroplasts.