Signalling Study guides, Revision notes & Summaries

why do specimens need to be thin when observing them under a light microscope? - to allow light to pass through identify and explain the starch test - add iodine dissolved in potassium iodide solution to the sample - positive test = blue-black - negative test = orange-brown why is the structure of the plasma membrane often referred to as the fluid mosaic model? - - the continuous bilayer is 'fluid' as the phospholipid molecules are constantly moving - protein molecules are scattered thr...

CPPS 325 FINAL EXAM QUESTIONS WITH CORRECT ANSWERS 2023/2024 Graded A+. What is the only example of conformational change activation? - Correct Answer-Insulin receptor kinase. All other RTKs are activated through forms of dimerization. What are the two forms of dimerization? - Correct Answer-i) Receptors exist as unactivated dimers until ligand binds (Twist theory) ii) exist as monomers that are brought together and activated by ligand binding. What is the most common method of dimerizatio...

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types of lipids (purpose) correct answer: storage, structural, and signalling fatty acid chemical structure and charge correct answer: - fatty part is the carbon chain - acid part is carboxyl group (-COOH) - negatively charged which conformations of saturated fatty acids are most stable? correct answer: - anti conformation - extended conformation unsaturated fatty acids correct answer: double bonds are almost always in cis conformation which results in kinks in structure mono-...

What are the different biochemical molecules of life? correct answer: - proteins = antibodies, receptors, transorters, hormones enzymes - lipids = fats, cholesterol, hormones - sugars = energy, cell structure - nucleic acids = DNA, RNA - small molecules= vitamines, metabolites - ions = K+, Na+, Ca2+, Cl- - water What are the 2 different types of hormones? correct answer: - protein/ lipid derivative What determines the function of a molecules correct answer: structure What cause...

Test Bank for Campbell Biology 4ce 4th Canadian Edition by Lisa A. Urry, Michael L. Cain, Steven A. Wasserman . Full Chapters test bank are included - Chapter 1 to 56 (Complete chapters with answers) Evolution, the Themes of Biology, and Scientific Inquiry The Chemical Context of Life Water and Life Carbon and the Molecular Diversity of Life The Structure and Function of Large Biological Molecules A Tour of the Cell Membrane Structure and Function An Introduction to Metabolism Cellula...

What are the 5 well-known enzyme-linked cell surface receptors? - 1. Receptor Guanylyl Cyclase: produces cGMP 2. RTK: phosphorylate tyrosine residues leading to association of signalling molecules and cascade 3. TK Associated Receptors: associate with proteins having TK activity 4. Receptor Tyrosine Phosphates: Removes phosphate on tyrosine residues 5. Receptor Serine/Threonine Kinases: phosphorylate specific Serine/Threonine residues on IC signalling molecules How are RTK and TK Ass...

Explore Cellular Neurophysiology at UCL. Dive into the intricate world of Neuronal Calcium Signaling, exploring transport mechanisms, glial cells, synapse dynamics, bioelectricity, action potentials, ion channels, and the transformative realm of optogenetics. Please note that these materials are intended for personal use only and should be used in accordance with academic integrity guidelines.

Essential Membrane Functions correct answer: act as barrier regulate import and export of molecules compartmentalization of processes increases efficiency membrane properties correct answer: composed of lipid bilayer impermeable to polar molecules asymmetric membrane fluidity correct answer: lipids and proteins rotate or move within bilayer; allows cell movement, growth, division, secretion, cell junction formation, and self-heal if punctured comformational changes mediate fluid...

CPPS 325 FINAL EXAM 2023 rated A+What are the 5 well-known enzyme-linked cell surface receptors? - correct answer 1. Receptor Guanylyl Cyclase: produces cGMP 2. RTK: phosphorylate tyrosine residues leading to association of signalling molecules and cascade 3. TK Associated Receptors: associate with proteins having TK activity 4. Receptor Tyrosine Phosphates: Removes phosphate on tyrosine residues 5. Receptor Serine/Threonine Kinases: phosphorylate specific Serine/Threonine residues on IC s...