Membrane fluidity - Study guides, Class notes & Summaries

Biology 1001 MUN Section 3 Questions and Answers Rated A+ **1. What is the role of the plasma membrane in a cell?** - The plasma membrane acts as the outer living layer of each cell, serving as a gatekeeper that separates the external environment from the cell's interior. **2. What does the term "amphipathic" refer to?** - It describes molecules that have both hydrophilic (water-attracting) and hydrophobic (water-repelling) components. **3. What factors influence membrane fl...

ANSC 221 Exam 2 Questions and Answers Already Passed There are three transporter types: Uniporter, Symporter/co-transporter, and Antiporter. Oxidative process of metabolism involves _________. electron transport chain carbohydrate to protein Glycoprotein ________-cartilage (GAG example) chondroitin sulfate _____ adhere cells to each other and to the ECM cell junctions ____ coordinate cellular activites in multicellular animals. Hormones Equal water and solute concentrations...

A bilayer with a short and unsaturated hydrocarbon tail has what permeability and what fluidity? - ️️High fluidity and high permeability A general function of all cellular membranes is to - ️️Regulate which materials can enter or leave the cell. A molecule that binds to the particular three-dimensional structure of a receptor site is known as a - ️️Ligand. A prokaryotic cell lacks a _____ and a _____ . - ️️nucleus; membrane-bound organelles. A protein kinase Cascade can ampli...

There are three transporter types: : Uniporter, Symporter/co-transporter, and Antiporter. Oxidative process of metabolism involves _________. : electron transport chain carbohydrate to protein : Glycoprotein ________-cartilage (GAG example) : chondroitin sulfate _____ adhere cells to each other and to the ECM : cell junctions ____ coordinate cellular activites in multicellular animals. : Hormones 2 | P a g e Equal water and solute concentrations on either side of the membrane : Iso...

cbns 101 midterm 1 test questions & answers 2024/2025 cell membrane permeability - ANSWERSsmall nonpolar molecules/ oxygen, small polar molecules/water, no ions, no large polar molecules lipid bilayer properties - ANSWERScomposed of lipids and proteins. lipids are amphipathic making it energetically favorable to spontaneously assemble into bilayers in aqueous solutions/hydrophobic interior and hydrophilic heads interact with environment/leads to sealed rings of lipids three types of l...

CBNS 101 midterm 1 exam questions & answers 2024/2025 Detergent - ANSWERSforms cone shape, makes micelles factors that increase fluidity - ANSWERShigh temp shorter fatty acid tail unsaturated tails that kink factors that decrease fluidity - ANSWERSLow temp longer fatty acid tail saturated tails that are not kinked Cholesterol - ANSWERSActs as a buffer Increases fluidity at low temps decreases fluidity at high temps orients in the bilayer such that rigid steroid rings i...

ISSA Nutrition Exam Final 2023 WHAT IS GOOD NUTRITION? - Correct Answer-PROPERLY CONTROLS ENERGY BALANCE PROVIDE NUTRIENT DENSITY ACHIEVE HEALTH, BODY COMPOSITION AND PERFORMANCE GOALS HONEST AND OUTCOME BASE WHAT ARE THE 8 STEPS TO EFFECTIVE COACHING? - Correct Answer-PREPARE FOR CLEINT COLLECT PRELIMINARY CLIENT INFO EVALUATE CLEINT INFO AND STATE WHAT IT MEANS OFFER NUTRITIONAL SUGGESTIONS AND PLANS OFFER SUPPLEMENTAL SUGGESTIONS SET BEHAVIOR GOALS AND CREATE MONITOR STRTG MAKE N...

Composition of Lipid Bilayer - 50% lipids (outnumber all other molecules 50:1), proteins (50% of mass of membranes), cholesterol Plasma Membrane (Function) - Enclose Cells, Organelles 1. Defines Boundaries to regulate chemical composition and environment 2. Define malleable borders Saturated - Single Bonded Unsaturated - Double Bonded Fatty Acids - Monomers for Lipids Function of Lipids - 1. energy storage 2. cell membranes Why Do Mitochondria have a double membrane? - Prehistoric cell...

BIOL1P91 Final Exam Prep test Questions With Verified Answers What are the 4 functions of the cell membrane 1. seperating internal and external environment 2. regulating traffic in the cell 3. Holding contents of the cell in place 4. creates interface for cellular activity What is the structure of the cell membrane - phospholipid bilayer - integral and peripheral membrane proteins - carbohydrate bonded to proteins - fluid mosaic model - asymmetrical leaflets fluid mosaic model of...

Describe the fluid-mosaic model of membrane structure. The framework of the membrane is the phospholipid bilayer, which consists of two layers of phospholipids. Also includes proteins and carbohydrates. Identify the three different types of membrane proteins. 1. Transmembrane Protein 2. Lipid-Anchored Protein 3. Peripheral Membrane Proteins Transmembrane Protein integral membrane protein that spans the entire width of a cell membrane Lipid-Anchored Proteins covalent attachment of a lipid to a...