Phys 335 Exam 1 Study Guide Answers

Phys 335 Exam 1 Study Guide Answers - STUDY GUIDE FOR EXAM...

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STUDY GUIDE FOR EXAM 1 MATERIAL 1. Define and explain the relationship between: Cells, Organs, Organ systems, Tissues Cells combine to make tissues which combine to make organs that work together to make organ systems. 2. What are the four broad categories of cell/tissue type? Epithelial, muscle, nerve, and connective 3. Give 5 examples of body functions performed by muscle cells. Facial expression, heart pumping, surround tubes of body for contracting, muscles for running, etc. 5. Explain two different uses of the word “tissue”. Tissue is formally described as an aggregate of a single type of specialized cell but it is also commonly used to denote the general cellular fabric of any organ or structure. Ex. Lung tissue actually contains four classes of tissue. 6. With regard to organ function, what is a “functional unit?” The smallest part that can perform the function of the organ 7. List the 10 organ systems that make up the human body. Circulatory, digestive, endocrine, immune, integumentary (skin), lymphatic, musculoskeletal, nervous, reproductive, respiratory, urinary 10. Contrast the composition of the interstitial fluid and blood plasma? Virtually the same except plasma has a higher protein concentration. 11. What separates intracellular fluid from extracellular fluid? Cell membrane 12. Label the 5 body fluid compartments represented by the arrows below: 13. Rank the compartments in the diagram above in descending order of their typical volumes in the human body. ICF (28), ECF (14), Interstitial (11), Plasma (3), Blood Cells (2). 15. Write a formal definition of the word “Homeostasis,” and give an example that demonstrates what it means. State of dynamic constancy. Ex. Maintaining constant body temperature.
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18. Describe the difference between “steady state” and “equilibrium”, using ion concentrations and membrane potential. Steady state requires energy to maintain. 22. Draw a concept map using: Afferent pathway, Effector, Efferent pathway, Integrating center, Receptor, Reflex arc, Stimulus Integrating Center Afferent Pathway Efferent Pathway Receptor Effector Stimulus Response Reflex arc 24. Differentiate between peripheral membrane proteins, integral membrane proteins, and transmembrane proteins. Peripheral: not ampipathic, outside support/structure Integral: amphipathic, float around to where it’s needed, halfway through Transmembrane: channel *ampipathic – having one nonpolar end and one polar end 25. Define/describe/differentiate the function of desmosomes, tight junctions and gap junctions. Desmosomes: consist of a region between 2 adjacent cells where the apposed plasma membranes are separated by about 20 nm. Characterized by accumulations of protein known as plaques that hold adjacent cells firmly together in areas subject to stretching. Tight junctions: forms when 2 membranes join so no extracellular space remains between
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This note was uploaded on 09/30/2008 for the course PHYS 335 taught by Professor Strang during the Summer '08 term at University of Wisconsin.

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Phys 335 Exam 1 Study Guide Answers - STUDY GUIDE FOR EXAM...

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