Physiology BIO 108 – Homeostasis Membrane Transport Action Potentials 400 Questions Exam Pack | University of Missouri Kansas City

This document is a comprehensive exam preparation resource containing approximately 400 questions with verified answers for UMKC Physiology Exam 1. It covers foundational physiology concepts including homeostasis, levels of biological organization, and signaling mechanisms such as paracrine, autocrine, endocrine, and neural communication. The material also explores body fluid compartments (ICF vs ECF), electrolyte distributions (Na⁺, K⁺, Ca²⁺), and feedback systems (negative and positive feedback), which are essential for maintaining internal balance . In addition, the document provides in-depth coverage of membrane physiology, including passive and active transport, ion channels, carrier proteins, osmolarity vs tonicity, and the Na⁺/K⁺ pump. It also explains electrical properties of cells such as resting membrane potential, action potentials, refractory periods, and synaptic transmission. Key nervous system concepts include graded vs action potentials, neurotransmitters, receptor types (ionotropic and metabotropic), and signal transduction pathways (G-protein coupled receptors). This resource is highly relevant for students enrolled in Physiology, Human Biology, Nursing, and Health Sciences courses. It is ideal for undergraduate students preparing for exams, especially those in pre-med, nursing, and allied health programs. The content aligns closely with widely used textbooks such as Human Physiology: An Integrated Approach by Dee Unglaub Silverthorn. It reinforces high-yield concepts including membrane transport mechanisms, neural signaling, and homeostatic regulation. The structured question-and-answer format enhances retention, supports active recall, and prepares learners for both academic assessments and clinical applications. Keywords: physiology exam questions, homeostasis negative positive feedback, membrane transport passive active Na K pump, resting membrane potential action potentials, ion channels carrier proteins physiology, osmolarity tonicity hypotonic hypertonic isotonic, neurotransmitters synaptic transmission, G protein coupled receptors signaling pathways, graded potentials vs action potentials