UCONN PNB 2264 Exam 1 Practice Questions and Answers

UCONN PNB 2264 Exam 1 Practice Questions and Answers Homeostasis - Ans:-"Dynamic steady state" Narrow limits and fluctuations around the "set point" % of Intracellular fluid in the body - Ans:-67% % of Extracellular fluid in the body - Ans:-Interstitial fluid (26%) Blood Plasma (7%) The Four Tissue Types - Ans:-Epithelial, Connective, Muscle, Nervous Epithelial Tissue - Ans:-1. Covers exposed surfaces 2. Lines internal passageways 3. Forms glands Hydrogen and Oxygen combine via: - Ans:-Polar Covalent Bonds Hydrogen's Importance to Life - Ans:-- Is a solvent - It Ionizes to form Electrolytes ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/11 - Has a high heat capacity - Lubrication - Cushioning What does Hydrolysis do? - Ans:-Reverses the steps of dehydration synthesis Electrolytes - Ans:-- Hydrogen (H+) - Sodium (Na+) - Potassium (K+) - Chlorine (Cl-) - Magnesium (Mg2+) - Calcium (Ca2+) Functions of Epithelial Tissue - Ans:-- Protection - Exchange - Secretion - Absorption ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/11 Characteristics of Epithelial Tissue - Ans:-- Presence of CELL JUNCTIONS - Polarity of the apical and basal surfaces - Attachment of the Basal Lamina to the Basement Membrane - Avascularity - Regenerative What is the purpose of the Basement Membrane? - Ans:-Attaches epithelial tissue to connective tissue Types of Intracellular Junctions: - Ans:-- Desmosomes - Hemidesmosomes - Tight Junctions: No space - Gap Junctions: Space Desmosomes - Ans:-Cell to CELL