Ch21 - Study guides, Class notes & Summaries

What are the three types of membrane proteins? correct answer: 1) Peripheral 2) Integral 3) Lipid anchored What are peripheral membrane proteins? correct answer: - Adhere to surface of lipid membranes or integral membrane proteins through non-covalent interactions - Can be removed using milder conditions What is the signature amino acid sequence for amphipathic helices? correct answer: P-P-NP-NP-P-P-NP-NP alternating polar and non-polar aa What are integral membrane proteins? ...

What does Rotenone and amytal do? correct answer: Inhibit electron flow from complex I to CoQ What does antimycin A do? correct answer: blocks complex III What does Cyanide, azide and Co do? correct answer: Inhibit complex IV what does oligomycin do? correct answer: inhibits ATP synthase, by binding to c subunit of ATP synthase blocking the flow of protons What are uncouplers? correct answer: disconnect ATP synthesis from electron flow, have ability to transport protons across i...

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How does membrane formation occur? correct answer: decrease in ionic bond with water What are the main functions of the cell membrane? correct answer: - barrier regulating the import and export of essential molecules - Compartmentalization of specialized processes increases cellular efficiency. - modulates cell-cell recognition due to the presence of glycoproteins and glycolipids. - Signalling across the membrane is mediated by proteins and lipids. What is the fluid mosaic model? corr...

MNG2601 ASSIGNMENT 2024; 100 % TRUSTED workings, explanations and solutions. For assistance call or us on .+2.. 5.. 4.... 7... 7.. 9. 5.. 4. 0.. 1.. 3... 2... QUESTION ANSWER Planning, as a managerial function, is necessary for . determining how to reach the organisation’s goals Which one of the following is a criterion of a good objective? It is . expressed in quantitative terms An analysis of the management environment should contribute to the management process in a mea...

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

BCH210 TESTED QUESTIONS WITH REVISED ANSWERS – UPDATED cross linker can be used in what techniques - Answer-stabilize X ray structure limitation of BiOID - Answer-can only proximate, maybe the proteins are just passing by the POI beads connect to what in BiOid - Answer-biotin released by ligase what is PDI - Answer-protein disulfide isomerase a kind of chaperon, isomerase structure of DE at pKa, why - Answer-C=O no - charge because protonated are cofactors proteins - Answer-...

Direction of phospholipid movement in flippases? correct answer: Outer to inner leaflet Moves PE (neutral) and PS (-1) Direction of phospholipid movement in floppases? correct answer: Inner to outer leaflet Function of Scramblase correct answer: Increases membrane SYMMETRY Moves phospholipids down their conc gradient Result of adding crosslinkers into cell membrane for FRAP correct answer: Slows down diffusion of phospholipids; slower recovery rate Entropy of lipids [?] when ...

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...