internal structure of a leaf labelled

: petiole - a leaf stalk; it attaches the leaf to the plant. Q1. Monocot and Dicot Leaf: Type # 1. The stalk of leaf is called A. Sessile B. Plumule C. Stipule D. Petiole. Epidermis. The structure of a leaf is described below in detail : Parts of a Leaf. Petiole – is known as the leaf stem; It is not exactly like a stem, but it does hold xylem & phloem; Holds the blade away from the stem 7. A leaf is a plant organ that is flat, thin and usually green in color. In petiolate leaves, the leaf stalk is long. (iii) Mesophyll tissue is present and is composed of palisade parenchyma and spongy parenchyma. Leaf Structure and Function. % Progress . cv+ìcÏe V lìsaåe pvsophy//4— veins a-f-ffo¿s ! Answers: Petiole is the stalk of a leaf that attaches the blade to the stem. It is the structure through which products of photosynthesis are moved from leaves to the entire plant. Leaf base has two small leaf-like structure called stipules. midrib - the central rib of a leaf - it is usually continuous with the petiole. The presence of pigment ‘chlorophyll’ makes the leaf green in color that helps to prepare food in plants through photosynthesis.Collectively, green … Structure of a Typical Leaf. lamina - the blade of a leaf. Anatomy of Monocot Leaf 2. Describes how leaves are made of several different kinds of specialized tissues. epidermis, mesophyll, and vascular bundle. The types are: 1. Leaves that do not have a petiole and are directly attached to the plant stem are called sessile leaves. Describes the structure and function of leaves. It is … It is mostly found above the ground and remains attached to the stem. The epidermis aids in the regulation of gas exchange. Click Create Assignment to assign this modality to your LMS. The internal structure of a leaf: Leaves are very important structures. Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. shows prominent ridges and grooves and reveals the following tissues: Epidermis: 1. ADVERTISEMENTS: The following points highlight the top two types of monocot and dicot leafs. Model 2 — Cross Section of the Internal Structure of a Leaf Cuticle Upper epidermis Chloroplast palisade mesophyll Air Space Lower epidermis Vein Spongy mesophyll Cuticle Guard cell f Stoma 8. List the la ers of the leaf starting at the upper cuticle all the way to the lower cuticle. Some leaves are attached to the plant stem by a petiole. The outermost layer of the leaf is the epidermis. Generally, leaf base, petiole, and lamina, together form the main parts of a leaf. So, the correct answer is ‘Petiole’ Q2. leaf apex - the outer end of a leaf; the end that is opposite the petiole. Leaf Structure and Function. They are the plant’s food factories. The upper layer of a leaf is called the upper epidermis. Anatomy of Monocot Leaf: Triticum-Leaf: ADVERTISEMENTS: T.S. axil - the angle between the upper side of the stem and a leaf or petiole. Under a powerful microscope, we can see three main internal parts of a leaf, i.e. MEMORY METER. (ii) Leaf-blade is enriched with reticulate venation. Anatomy of Dicot Leaf. Leaf Base: This is the part where a leaf attaches to the stem. They absorb sunlight energy to make food. Identifying characteristics of the internal structure of dorsiventral or dicot leaf: (i) It is green, compressed with a wide lamina. Two epidermal […] It consists of the upper and lower epidermis, which are present on either side of the leaf. Botanists call the upper side the adaxial surface (or adaxis) and the lower side the abaxial surface (or abaxis). stem - (also called the axis) the main support of the plant. 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