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Question: Disulfide Bonds Determine the Properties of Many Proteins Some natural proteins are rich in disulfide bonds, and their mechanical properties (tensile strength, viscosity, hardness, etc.) are correlated with the degree of disulfide bonding.(a) Glutenin, a wheat protein rich in disulfide bonds, is responsible for the cohesive and elastic character of dough made from wheat flour. Similarly, the hard, tough nature of tortoise shell is due to the extensive disulfide bonding in its ?-keratin. What is the molecular basis for the correlation between disulfide-bond content and mechanical properties of the protein?(b) Most globular proteins are denatured and lose their activity when briefly heated to 65 °C. However, globular proteins that contain multiple disulfide bonds often must be heated longer at higher temperatures to denature them. One such protein is bovine pancreatic trypsin inhibitor (BPTI), which has 58 amino acid residues in a single chain and contains three disulfide bonds. On cooling a solution of denatured BPTI, the activity of the protein is restored. What is the molecular basis for this property?
With these anatomical features in mind, do research to discover an angiosperm species that has structural modifications to leaves, stems, roots, or flowers that result in adaptive functions. For in case, a California Barrel Cactus has spines in place..
What is the rate of coagulation of naturally occurring colloids (under various pH and I scenarios)? How may the size spectrum of agglomerates change over time? How quickly do colloidal aggregates settle.
After contact with a patient spinal fluid a lab technician develop fever nausea and purple lessions on her neck and extremities. A throat culture grew gram negative diplococci. What is genus of the bacteria.
If amino acid sequences might be useful in determining how closely related dissimilar species are but may not be very useful for identifying a particular species, suggest two reasons why.
Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic. In designing a drug that would bind to the active site and jam it, researchers should use which sort of molecule.
Was evolutionary pressure that contributed to the echinoderm nervous system development likely due to selection for those animals capable of forward locomotion?
Assume i f you are performing in-situ hybridization to detect mRNA, why do you use the antisense strand? Are you using RNA or DNA as a probe for mRNA?
List the different hypothalamic regions and peripheral signals involved in the control of feeding and satiety.
A bar graph is used instead of a line graph because every type of liver cell was independent of the others. Determine what variable did researchers intentionally vary in experiment, and what are the units for this variable?
If the horticulturist breeding gardenias succeeds in having a single plant with a particularly advantageous set of traits, which would be her most probable and efficient route to establishing a line of such plants.
Explain how photosynthesis and respiration are linked in order to provide you with energy from the food you eat.how to Explain the role of fermentation.
Environmental Carcinogens mutagens and other environmental carcinogens UV light organic solvents high energy radiation asbestos tobacco smoke others factors? What does UV light do to a cell.
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