The leaf is supported by a prominent mid-rib along its entire length. Try this amazing Parts Of A Plant Quiz quiz which has been attempted 3469 times by avid quiz takers. As one of the most important constituents of plants, leaves have several essential functions: Photosynthesis. Parts of a leaf: A leaf may seem simple in appearance, but it is a highly-efficient structure. Monocots and dicots differ in their patterns of venation. The stem has vessels that transport sap and water throughout the plant. The morphology of bundle sheath was considered to be uncertain, but it is now regarded as an endodermis (Fann), where Casparian strips in -some cases have been observed. Two Functions of the Leaf. b) Upper epidermis: Upper layer of cells. The Blade, or lamina, is the broad, flat part of the leaf. Lateral bud- it is capable of developing into a branch shoot or flower cluster. Although a leaf looks thin, its is made up of several layers of cells. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. The leaves make the food for the plant. THE LEAF: FUNCTIONS What is a leaf? c) Palisade Mesophyll: Tightly packed upper layer of chloroplast containing cells. The root is the part of the plant that takes in water and minerals for the plant. In most plants, leaves are the major site of food production for the plant. External Features, Origin, and Internal Structure. The leaf is one of the most important part of the plants because it is the one which is in charge of accomplishing the photosynthesis, the respiration and transpiration.. State their function, and explain how they differ from the rest of the cells forming the epidermal tissue of the leaf. Examine the photograph below showing part of the epidermis covering a Ligustrum leaf. The leaf blade is long, narrow, undulating and tapers towards the tip and is glabrous to hairy. The function of the veins in a leaf is to transport food to different parts of the leaf Internal Leaf Structure a) Cuticle: Waxy layer water proofing upper leaves. Basic parts of most all plants are roots, stems, leaves, flowers, fruits, and seeds. It is the terminal part of the leaf. Citations The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products The Leaf. The flower helps attract insects and birds. b. Lower epidermis - outmost tissue on the lower side of the leaf; protects the leaf. What are the major leaf arrangements? The leaf is one of the most important parts of a plant . It also lets water and nutrients flow up to the leaves. Leaves produce food for the plant through a process called photosynthesis . Plants have external parts that help them grow, survive and reproduce. The stem is strong and helps hold the plant up. Taxonomists use an inordinate number of terms as a means to separate and name plants. The roots help provide support by anchoring the plant and absorbing water and nutrients needed for growth. The maize leaf is a typical grass leaf and consists of a sheath, ligules, auricles and a blade. Air spaces around them. The lamina of the leaf contains veins and veinlets that provide rigidity to the leaf blade and help in the transport of mineral nutrients. Also explore over 5 similar quizzes in this category. Many plant parts are eaten by people. a.) Well, Leaf is principal appendage of the stem or on branches of a plant. The cells labelled A are modified for a particular function. The leaf consist of a broad, flat part called the lamina, which is joined to the rest of the plant by a leaf stalk or petiole. Let's take a look at the parts of the plant that Maria is going to see and find out what their functions are and why they are important. A car is a complex machine with several systems functioning simultaneously. Protection. Under favorable conditions of growth, a seed gives rise to a new plant, using the nutrients stored in them. They can also store sugars and carbohydrates that the plant uses to carry out other functions. Its main functions are photosynthesis and gas exchange. The stem is an external plant part. A leaf is an above-ground plant organ and it is green. Increase surface area for Photosynthesis. Leaf Base: This is the part where a leaf attaches to the stem. The Parts of a Leaf. The petiole is a short stalk that attaches the leaf to the stem. Leaf Function: Leaves are the powerhouse of plants. Parts of a Seed and Their Functions A seed is a structure that encloses the embryo of a plant in a protective outer covering. Terminal bud- is the main area of growth in most plants. Leaf base has two small leaf-like structure called stipules. A leaf is a chief photosynthetic organ of a plant. The leaf base is a protruding part of a leaf. Veins: Leaf veins branch from the midrib of the leaf Leaf veins contain vascular tissue of the leaf (xylem and phloem) The main functions of the leaf veins . 1.1 Identify the basic parts that make up a seed and explain the function n The simplest way to describe a seed is “a baby in a box with food” where the box c. Site of transpiration, evaporation of water that helps pull water up from roots. Within each leaf, the vascular tissue forms veins. You need to understand the structure of the tissues in a leaf together with their functions. The structure of a leaf is described below in detail : Parts of a Leaf. Leaf scar- is the mark left on a stem after a leaf falls. External parts of the stem: Lenticel-it function as a pore, providing a medium for the direct exchange of gases between the internal tissues and atmosphere. Leaf Blade: Wide flattened area of leaf for concentrating sunlight on photosynthetic cells. 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