Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 27, Problem 6SQ
Summary Introduction
Concept introduction: The plant surface is covered by the dermal tissues. It is a complex plant tissue with more than one cell type. It protects the inner tissues of the plant and also connects them to the outer world. Epidermis is the primary surface tissue of the plant. The dermal tissues help to detect excess water loss and invasion by insects and microorganisms.
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Chapter 27 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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- The accumulation of dead keratinocytes and the protein ____ on the skin surface forms a waterproof barrier. Choose one: A.keratin B.oil C.melanin D.collagenarrow_forwardYou develop a callus, which is a thickening of the epidermis, from a pair kd I'll-fitting shoes. To treat the callus, you decide to shave off some of the excess epidermis. While doing this , you notice that there is no pain or bleeding . Why wouldn't it cause paint to remove only the superficial part of the epidermis ? Why wouldn't it bleed ? Unfortunately, you go a bit overboard and feel a sudden pinch, after which you notice you are bleeding . What has happened ? Are you still in the epidermis ? Explain .arrow_forwardCollagen lends ________ to the skin.a. elasticityb. structurec. colord. UV protectionarrow_forward
- Epidermal cells synthesize a substance that prevents damage from the atmosphere’s oxygen. This substance is calledarrow_forwardThe _________ consists of many layers of dead squamous cells surrounded by lipids. A. dermis B. stratum corneum C. hypodermis D. stratum basalearrow_forwardWhich of the following statements about epidermal cell types is false? a. Keratinocytes produce the fibrous keratin protein b. Melanocytes produce the pigment melanin c. Langerhans cells produce macrophages d. Merkel cell send information to sensory neurons e. None of the abovearrow_forward
- The farther the epidermal cell move from the dermis A. The more cube shaped the are. B. The poorer their nutrient supply because C. The younger they are D. The less keratin E. All of the abovearrow_forwardWhen you peel your potatoes for dinner, you are removing the majority of their a. dermal tissue. b. vascular tissue. c. ground tissue. d. Both a and b are correct. e. All of the choices are correct.arrow_forward1. Epidermis a. Identify the 5 epidermal layers and give their distinguishing feature EPIDERMAL LAYER DISTINGUISHING FEATUREarrow_forward
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