It is mostly found above the ground and remains attached to the stem. Describes the structure and function of leaves. The presence of pigment ‘chlorophyll’ makes the leaf green in color that helps to prepare food in plants through photosynthesis.Collectively, green … They absorb sunlight energy to make food. Anatomy of Monocot Leaf 2. Leaf Structure and Function. axil - the angle between the upper side of the stem and a leaf or petiole. Describes how leaves are made of several different kinds of specialized tissues. Leaf Structure and Function. Two epidermal […] (ii) Leaf-blade is enriched with reticulate venation. Generally, leaf base, petiole, and lamina, together form the main parts of a leaf. ADVERTISEMENTS: The following points highlight the top two types of monocot and dicot leafs. Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. MEMORY METER. They are the plant’s food factories. cv+ìcÏe V lìsaåe pvsophy//4— veins a-f-ffo¿s ! leaf apex - the outer end of a leaf; the end that is opposite the petiole. The structure of a leaf is described below in detail : Parts of a Leaf. The types are: 1. A leaf is a plant organ that is flat, thin and usually green in color. stem - (also called the axis) the main support of the plant. The epidermis aids in the regulation of gas exchange. The upper layer of a leaf is called the upper epidermis. List the la ers of the leaf starting at the upper cuticle all the way to the lower cuticle. The internal structure of a leaf: Leaves are very important structures. shows prominent ridges and grooves and reveals the following tissues: Epidermis: 1. Botanists call the upper side the adaxial surface (or adaxis) and the lower side the abaxial surface (or abaxis). Click Create Assignment to assign this modality to your LMS. It consists of the upper and lower epidermis, which are present on either side of the leaf. Blade – the main collecting structure of the leaf; Has a large, broad surface Has many layers which help the plant move and store photosynthetic materials and by - products 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. Identifying characteristics of the internal structure of dorsiventral or dicot leaf: (i) It is green, compressed with a wide lamina. It is … It is the structure through which products of photosynthesis are moved from leaves to the entire plant. epidermis, mesophyll, and vascular bundle. So, the correct answer is ‘Petiole’ Q2. Epidermis. Monocot and Dicot Leaf: Type # 1. The internal structure of cacti stems conforms to the pattern of broad-leaved angiosperms; a cambium layer of dividing cells, located between the woody inner tissues and those near the outside of the stem, is present. : petiole - a leaf stalk; it attaches the leaf to the plant. lamina - the blade of a leaf. Answers: Petiole is the stalk of a leaf that attaches the blade to the stem. Under a powerful microscope, we can see three main internal parts of a leaf, i.e. midrib - the central rib of a leaf - it is usually continuous with the petiole. (iii) Mesophyll tissue is present and is composed of palisade parenchyma and spongy parenchyma. Anatomy of Dicot Leaf. Q1. Structure of a Typical Leaf. The stalk of leaf is called A. Sessile B. Plumule C. Stipule D. Petiole. Some leaves are attached to the plant stem by a petiole. 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