WSU BIO 106 Exam 1 Questions and Answers Already Passed

WSU BIO 106 Exam 1 Questions and Answers Already Passed The three basic plant organs, ________, are organized into_____________. Leaves, Stems, Roots; A shoot system and a root system Nodes The point at which leaves are attached Internodes The stem segments between nodes Root -An organ that anchors the plant into the ground -Absorbs minerals and water from the tip -Stores organic nutrients -Root hairs increase surface area and absorb most of the water and minerals Axillary Bud A structure that has potential to form a lateral shoot (branch) Terminal Bud Located near the shoot tip and causes elongation of a young shoot Leaves -Main photosynthetic organ for most vascular plants -Consists of a flattened blade and petiole Petiole A stalk which joins the leaf to a node of the stem Simple Leaf A simple leaf in a single, undivided blade Compound leaf Blade consists of multiple leaflets Doubly Compounded Leaf Each leaflet is divided into smaller leaflets Each plant organ has ______, ______, and ________ tissues Dermal, vascular, and ground tissues Epidermis Dermal tissue usually a single layer of tightly packed cells Periderm In woody plants, this replaces epidermis in older tissue Dermal Tissue Outer protective covering Vascular tissue Carries out long-distance transport of materials between roots and shoots Xylem Transports water and solutes from the roots to the leaves Phloem Transports food from the leaves to the rest of the plant Ground Tissue Includes various cells specialized for functions such as storage, photosynthesis and support Parenchyma Generally lack secondary walls, perform metabolism and contain plastids Collenchyma Flexible support cells without secondary wall Sclerenchyma Thick secondary walls primarily for support Apical meristems Located at the tips