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Exam 1 Study Guide Part I

Exam 1 Study Guide Part I - Study guide for BSC 2011 Exam I...

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Study guide for BSC 2011 Exam I: Form and Function Key terms and concepts Chapter 40: 1. Surface area to volume ratio and why it matters a. Needs to satisfy the organism’s metabolic needs 2. Why is diffusion effective at small sizes but not at large sizes? What are some of the modifications use to expose all cells to the environment (for gas/nutrient exchange) a. As an animal gets larger and has many cells, these cells are not in contact with the direct environment compared to smaller animals which use passive diffusion to exchange certain chemicals 3. What is the function of EACH of the organ systems? 4. What are the 4 major tissue types? a. Epithelial tissues – tissues covering external parts of the body b. Connective tissues – connect different parts of body by binding and supporting tissues c. Muscles tissues – responsible for movement (skeletal, cardiac and smooth muscles) d. Nerve tissues – sense stimuli and transmit signals from one part of animal to another 5. The different types of epithelium and the function of each a. Simple epithelial tissues – one layer of cells; used for simple diffusion in lungs b. Stratified epithelial tissue – multiple layer of cells; useful for protection against abrasion c. Squamous – flat d. Cuboidal – cube-shaped; involved in secretion; found in kidneys and glands e. Pillar – columnar; involved in secretion and absorption f. Pseudostratified ciliated columnar – mucous membrane in respiratory tract, cilia move mucus 6. Different kinds of connective tissue/fibers.
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