Admin Table of Contents
What is the boundary of a leaf called?
Most leaves have a midrib, which travels the length of the leaf and branches to each side to produce veins of vascular tissue. The edge of the leaf is called the margin.
What is the part of the plant that grows below the ground called?
Roots
Roots are the below ground part of a plant that cannot be seen. Roots are required for structure and anchoring the plant in the soil. The roots also transport water and nutrients to the above ground portion of the plant. The bundle of roots that is associated with a plant is called the rhizome.
What are the structures under the leaves called?
Stomata and the Lower Epidermis On the bottom of the leaf is another protective layer of cells. Because it is at the bottom of the leaf, this layer is known as the lower epidermis. Within this layer are very important structures known as stomata. These are pores in the leaf that allow for gas exchange.
What determines the number of leaves on a plant?
The number of leaves on a plant is fixed mainly by the genetics of the plant which controls the arrangement of leaves on the stem. Of course, a bigger plant has more leaves, but it is not a simple matter to switch growth into extra leaf mass.
Why do some plants have more leaves than others?
The number of leaves on a plant is fixed mainly by the genetics of the plant which controls the arrangement of leaves on the stem. Of course, a bigger plant has more leaves, but it is not a simple matter to switch growth into extra leaf mass. Plants growing in drought conditions do DECREASE the area of their leaves (the leaves actually shrink).
What is the anatomy of a tree?
THE ANATOMY OF A TREE. The major parts of a tree are leaves, flowers and fruit, trunk and branches, and roots. LEAVES. Leaves are basically sheets (or sticks) of spongy living cells connected by tubular conducting cells to the. “plumbing system” of the tree.
What are the 3 main parts of a plant?
The main parts of a plant include: Roots. Stem. Leaves. Flowers. Fruits. Roots. Roots are the important and underground part of a plant, which are collectively called the root system. They are the major part that anchors the plant firmly in the soil.