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APHY 201 Exam 1 Study Guide Overview 2025 Questions and Answers What determines whether a body surface is internal or external? - -Answer --The location of the surface in relation to the external environment. What body surfaces face the external environment? - --Answer --Skin and mucous membranes. What are the internal body surfaces? - --Answer --Surfaces that are lined by serous membranes and are not exposed to the external environment. List the different fluid compartments of the body. - --Answer --Intracellular fluid, extracellular fluid (interstitial fluid and plasma). What is the function of the cell membrane? - --Answer --To protect the cell, control the movement of substances in and out, and facilitate communication. What are the membranous organelles of the cell and their basic functions? - -Answer --Nucleus (stores genetic material), mitochondria (energy production), endoplasmic reticulum (protein and lipid synthesis), Golgi apparatus ....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1