Bio 270 hynd - Study guides, Revision notes & Summaries

Which statement about the plasma membrane is not true? - ️️- serves as mechanical barrier to hold in contents of cell - selectively controls movement of molecules between the extracellular fluid and cytoplasm - ****barrier that surrounds blood vessels and separates blood plasma from interstitial fluid**** - contains proteins that provides for various membrane functions If solution A has a higher concentration of solute particles than solution B and if these solutions are separated by...

Bio 270 Hynd Final Exam with Complete Solutions

BIO 270 Exam 1 Hynd- Questions & Answers

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Bio 270 Lecture Exam 2 JMU Hynd Study Guide Solutions Astrocytes - ANSWER-glue that holds neurons in place, helps maintain ionic concentration Oligodendrocytes - ANSWER-Myelin sheath of CNS Microglia - ANSWER-trashcans of brain, eat dead micro and neurons ependymal - ANSWER-lining of ventricles (brain) schwann cells - ANSWER-myelin sheath of PNS Four types of glial cells - ANSWER-astrocytes, oligodendrocytes, microglia, ependymal blood brain barrier - ANSWER-capillaries sealed with tight...

BIO 270 Exam 4 (final) – Hynd Exam Study Guide Solutions endocrinology - ANSWER-study of homeostatic activities accomplished by hormones hormone - ANSWER-chemical released into blood to regulate distant target cells hormones exert effect on _____ cells some distance away from the site of release - ANSWER-target major glands of the central endocrine system - ANSWER-hypothalamus and pituitary major glands of the peripheral endocrine system - ANSWER-thyroid, adrenal, parathyroid, gonads ma...

BIO 270 Exam 1 JMU Hynd Questions and Answers What are the four primary tissue types? - ANSWER--muscle -epithelial -nervous -connective What type of fluid resides within the cell? - ANSWER--intracellular What are the two classes of homeostatic control systems? - ANSWER--intrinsic -extrinsic Milk-secreting glands are examples of exocrine glands (T/F) - ANSWER-True Body systems maintain homeostasis, a dynamic steady state in the internal environment (T/F) - ANSWER-True ©EMILLECT 2024/...

Bio 270 Hynd Final Exam Study Guide Solutions ____________ packages and labels hormones into secretory vesicles that are stored in cytoplasm until appropriate signal - ANSWER-Golgi Once formed, (steroids/peptides) immediately diffuse through plasma membrane to reach blood - ANSWER-steroids (Steroids/Peptides) dissolve in blood - ANSWER-Peptides, steroids cannot since they are hydrophobic Only the (bound/unbound) hormones are active and capable of binding with target cell receptors - ANSWE...

BIO 270 HYND EXAM 3 STUDY GUIDE SOLUTIONS (T/F) The O2-Hb dissociation curve is static - ANSWER-False, it is not static Steep between "20-60" Flat between "60-100" ______________ is the main determinant of # of Hb binding sites - ANSWER- What component of hemoglobin actually binds the oxygen? - ANSWER-Fe+ Since the blood goes leaves the lungs with pO2 =100, what does this mean for its affinity? - ANSWER- Almost fully saturated (around ~ 97%) What does the plateau portion of ...