Passive diffusion - Study guides, Class notes & Summaries

transport proteins - are responsible for controlling passage across the membrane fluid mosaic model - The membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids fatty acid tails - nonpolar, hydrophobic fatty acid heads - hydrophilic, polar periphial proteins - bound to the surface of the membrane integral proteins - penetrate the hydrophobic core (ones that span the membrane are transmembrane protiens How do cells recognize each other? - by binding to molec...

Sociology 101 Straighterline Exam Questions and Complete Solutions __________ involves aspects of social life that have to do with order, stability, and social organization that allow societies and groups to hold together and endure. - Answer: Social statics Herbert Spencer viewed society as a system, having important similarities with - Answer: a biological organism __________ refers to processes of social life that pattern institutional development and have to do with social change. -...

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NURS 6521 Midterm Exam 2024/25 Walden University NURS 6521 Midterm Exam: Advanced Pharmacology: Walden University (FOR 100% CORRECT ANSWER CHECK THE LAST PAGE) 1. Which of the following patients demonstrates the clearest indication for treatment with prednisone? A) A 66-year-old woman whose history of smoking has culminated in a diagnosis of emphysema B) A 70-year-old man whose rheumatoid arthritis has not responded to OTC pain relievers C) A 12-year-old boy whose long-standing fatigue and malai...

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Bio 103 exam 2 McMullen Questions and Answers Rated A+ **What fundamental principles does cell theory encompass?** Cell theory asserts that ** all living organisms are made up of cells, which serve as the fundamental units of structure and function, and that cells arise from pre-existing cells**. **Describe the characteristics of a eukaryotic cell.** A eukaryotic cell is ** defined by the presence of a nucleus and various membrane- bound organelles**. Eukaryotes can exist as ** u...

UNE BioChem 1005 Final Exam Questions & Answers 2024 Somatostatin reduces the secretion of both glucagon and insulin through which of the following mechanisms? a. Somatostatin activates an activator G-protein b. Somatostatin activates MAPK cascade c. Somatostatin activates an inhibitory G-protein d. Somatostatin uses Ca+2 as a downstream signal - ANSWER-c. Somatostatin activates an inhibitory G-protein Insulin mediated glucose uptake by muscle and adipose tissue is a result of whi...

MCDB 1150 Exam 3 cu boulder Questions & Answers 2023/2024 Membrane transport - ANSWER-• Passive diffusion through membrane • "diffusion" through pore/channel • Facilitated diffusion - carrier proteins • Active transport by transporters/pumps The ability of a molecule to diffuse through a pure lipid bilayer depends on its - ANSWER-SOLUBILITY in the hydrocarbon interior of the membrane small ions (K+, Na+, Cl-) - ANSWER-virtually IMPENETRABLE insoluble in hydrophobic...

Advanced Pharmacology Exam 1 Once you graduate from an NP program, in order to prescribe you'll need: - ANSWER -Advanced nurse prescriber license -DEA # What is the purpose of a DEA #? - ANSWER Needed to prescribed scheduled drugs Rules for prescribing Schedule II drugs: - ANSWER -Written script needed -1 month supply only -No refills What is the PDMP? - ANSWER ...

TEST BANK FOR Pathophysiology The Biologic Basis For Disease in Adults and Children 9th Edition By McCance & Huether Complete All Chapters 1-50 () Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. b. Cells can secrete digestive enzymes. c. Cells can take in and use nutrients. d. Cells can synthesize fats. ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their surroundings. The remaining...

NURS 8022 Exam 1 Questions With Correct Answers 100% Negative Feedback - ANSWER Promotes stability; cancels out the original response. Ex: High FSBS, increased insulin by the pancreas Positive Feedback - ANSWER Promotes a change in one direction; instability, DISEASE. Ex: Blood clotting, platelet cascade Proteins - ANSWER Provide selectivity to a membrane Integral proteins - ANSWER channels, pores, carriers, enzymes, receptors, second messengers Peripheral proteins - ANSWER Enzy...