These are performance curves for two oxygen binding proteins. While we didn't go over the curves themselves in lecture, what are the axis labels? 1.0 0.8 0.6 0.4 0.2 Myoglobin Hemoglobin P50 = 26 torr
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- The dissociation constant is defined by p50 = 2.8 torr for myoglobin binding to oxygen. What is partial pressure of oxygen when half of the myoglobin proteins in solution are bound to oxygen?a) What is the KDD for this myoglobin variant? b) What is the predicted fractional saturation for the last box in the table? (please show your work so I can better understand) c) What is unexpected about the binding curve above? (5 words or less) d) What must be structurally different about this new variant relative to other known Myoglobin variants to generate this graph?Detailed measurements of sarcomere length andtension during isometric contraction in striated muscleprovided crucial early support for the sliding-filamentmodel of muscle contraction. Based on your understand-ing of the sliding-filament model and the structure of asarcomere, propose a molecular explanation for the rela-tionship of tension to sarcomere length in the portions ofFigure Q16–1 marked I, II, III, and IV. (In this muscle, thelength of the myosin filament is 1.6 μm, and the lengths ofthe actin thin filaments that project from the Z discs are 1.0μm.)
- In a Myoglobin and azide ligand-receptor binding experiment, instead of using 3.5 µM myoglobin you used half of this (1.75 µM myoglobin), what would be that value of the Kd, that you calculated (how would the Kd change)?Given: Beer-Lambert Law A = Ecl E = 8000 for Met myoglobin E= 14,000 for oxy-myoglobin l=1 cm find c, the concentration of Oxy-Mb and Met-Mb based on the data table given below.Identify the structures and events of the sliding filament mechanism. A band H zone H zone reduced M line A band unchanged I band reduced I band Relaxed Shortened Z line LIGIRALEIL stus tibi 00 LIAALS00 aluaci 90.294 maak to a d' Q COM 20240 அதற் A COM me 000
- 97846/variants/911961/take/16/ TEXT ANSWER Question 18 Analyze the image below. Explain what happens during muscle con- traction according to the sliding filament model. Use at least three vocabulary terms in your answer. Refer to specific structures from the diagram in your answer. 11 HOLLO Or õ ó ó ó ó ó ó ó ó ó ó ó ó ó ó • o 17 of 18 Total Questions Answered 12 * * = 6809 All Changes Saved Continue 1:01 AM 2/16/2023Electrophoresis is performed at PH 6.8 on a mixture of mutated hemoglobin that differ from normal haemoglobin (Hb) only by the substitution of one amino acid- Hb X: Val replaced par Glu - Hb Y: Asp replaced by Leu - Hb Z: Glu replaced by Lys What will be the order of migration between cathode and anode of these mutated Hb compared to normal Hb? Justify your answer.In human resting muscle cells, the concentration of ATP is 4 mM, ADP is 0.013 mM, creatine-phosphate is 25 mM and creatine is 13 mM. Calculate the ΔG for the formation of creatine phosphate from ATP and creatine in kJ/mol and do not include unit in your answer.
- T/F Type I collagen fibers, that consist of collagen triple helices aligned side-by-side, are strengthened by covalent cross-links between amino acid side chains of different collagen triple helices. True O FailseTwo co-op students at your start-up company have been asked to evaluate the rate of reaction occurring in a transparent gel particle containing immobilized mouse melanoma cells. The equation for the reaction rate ris is: Vmax T'As Km+CAs where R=3.2 mm, Vmax= 0.12 gmol s' m3, CAS = 41 gmol m3, and Km=0.8 gmol m3. One student reports a reaction rate of 1.6x10 gmol st; the other reports 1.6x10 1º gmol s1. You left your calculator on the bus this morning, but must know quickly which student is correct. Use an order-of- magnitude calculation to identify the right answer. Which student is correct?The virus SARS-CoV-2 which causes covid-19 has quite flexible nail protein. Make a simplified biomechanical equilibrium model based on the black and white card (electron microscopy). Assume that C is a pin joint. Joint B is described as a torsion spring with force pair moment M = κα, where α is the angle in radians. Suppose further that force from above can be modeled as gravity in A, and that the medium acts as a vertical roller support at R. Dimensions: LBC = 100 nm, LAB = 2LBC. The angle θ = 10◦ . a) If m = 10 milligrams, what is the “stiffness” κ, in fNm / row? (milligram = 10−6 kg, n = nano = 10−9 , f = femto = 10−15.) (5p) b) If m = 10 milligrams, what is the amount of force from the medium (The "roller support")?