WSU Biology 106 Exam 1 Questions with 100% Correct Answers | Latest Version 2024 | Verified Most species extinction can be traced to what four major threats? - ✔✔Climate change, habitat destruction, over harvesting, and the introduction of species. Name three functions of the root? - ✔✔Anchors the plant, absorbs minerals and water, and stores organic nutrients. What part of the root system is responsible for absorbing the majority of minerals and water? - ✔✔The root hair. What two components create the stem? - ✔✔Internodes and nodes. What are nodes? - ✔✔The points where leaves attach to the stem. What are internodes? - ✔✔The stem segment between nodes. What are auxiliary buds? - ✔✔Structures that can form lateral shoots (branches). What is a terminal bud? - ✔✔Structure located at the tip of the stem, responsible for elongation. What is a leaf? - ✔✔A component of the shoot system that is responsible for most photosynthesis. What are the two main parts of a leaf? - ✔✔Blade and petiole. What is a petiole? - ✔✔A stalk, joins leaf blade to node of stem. WSU Biology 106 Exam 1 1 What are the three main types of tissue systems? - ✔✔Dermal, vascular, and ground. What is the purpose of the dermal system? - ✔✔To provide a protective cover of the plant. What are two components of the dermal tissue system? - ✔✔The epidermis and the periderm. What is the epidermis? - ✔✔An outer layer of tightly packed cells. What is the periderm? - ✔✔A layer that replaces the epidermis in old, woody plants. What is the purpose of the vascular system and what are the two main components? - ✔✔To transport materials between roots and shoots; xylem and phloem. What is xylem? - ✔✔Vascular tissue that conducts water and dissolved minerals upwards from the root to the shoot. What is phloem? - ✔✔Vascular tissue that conducts sugars and other metabolic products; can transport in any direction. What is the purpose of ground tissue? What are the three main components? - ✔✔To perform metabolic functions. Parenchyma, collenchyma, and sclerenchyma. What are qualities of parenchyma tissue? - ✔✔Responsible for metabolism, contains plastids, is typically soft and lacks secondary walls. What are qualities of collenchyma tissue? - ✔✔Provides structural support in shoots, does not have a secondary wall. WSU Biology 106 Exam 1 2
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WSU Biology 106 Exam 1 Questions with 100% Verified Solutions Latest Version 2024
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WSU Biology 106 Exam 1 Questions with 100% Verified Solutions Latest Version 2024 Most species extinction can be traced to what four major threats? - Climate change, habitat destruction, over harvesting, and the introduction of species. Name three functions of the root? - Anchors the plant, absorbs minerals and water, and stores organic nutrients. What part of the root system is responsible for absorbing the majority of minerals and water? - The root hair. What two components create the stem? - Internodes and nodes. What are nodes? - The points where leaves attach to the stem. What are internodes? - The stem segment between nodes. What are auxiliary buds? - Structures that can form lateral shoots (branches). What is a terminal bud? - Structure located at the tip of the stem, responsible for elongation. What is a leaf? - A component of the shoot system that is responsible for most photosynthesis. What are the two main parts of a leaf? - Blade and petiole. What is a petiole? - A stalk, joins leaf blade to node of stem. WSU Biology 106 Exam 1 1
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