Which statement is false?○ Each chain of collagen adopts a right-handed helix○ Disulfide linkages modulate the properties of keratin structure.O Modified lysine residues can enhance collagen's durabilitySilk resists stretching because of its ẞ conformation○ The polypeptides in a-keratin are mainly in the a-helical conformation

Step 1: The false statement is : Silk resists stretching because of its β conformation.…

Answered: Which statement is false? ○ Each chain…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter32: The Reception And Transmission Of Extracellular Information

Section: Chapter Questions

Problem 11P

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Similar questions

A rubbery secreted matrix of glycoproteins and collagen surrounds living cells in ______ a. bone b. cartilage c. adipose tissue d. blood
Understanding the Nature of the Ubiquitin-Ubiquitin linkage Draw the structure of the isopeptide bond formed between Gly76of one ubiquitin molecule and Lys48of another ubiquitin molecule.
Figure 16.13 An increase in phosphorylation levels of elF-2 has been observed in patients with neurodegenerative diseases such as Alzheimer’s, Parkinson's, and Huntington's. What impact do you think this might have on protein synthesis?
A rubbery secreted matrix or proteoglycans and collagen surrounds living cells in _______. a. bone b. cartilage c. adipose tissue d. blood
Cholesterol is an integral part of plasma membranes. Based on its structure, where is it found in the membrane? on the extracellular surface embedded with the phospholipid heads within the tail bilayer attached to the intracellular surface
Energetic of Fructose-1 ,6-bis P Hydrolysis (Integrates with Chapter 3.) The standard free energy change (G) for hydrolysis of fructose-1. 6-bisphosphate (FBP) to fructose-S-phosphate (F-6-P) and P: is -16.7 KJ/mol: FBP + H2O fructose-6-P + Pi The standard free energy change (G) for ATP hydrolysis is -30.5 KJ/mol: ATP + H2O ADP + Pj What is the standard free energy change for the phosphofructokinase reaction: ATP + fructose-6-P ADP + FBP b. What is the equilibrium constant for this reaction? c. Assuming the intracellular concentrations of [ATP] and (ADP] are maintained constant at 4 mM and 1.6 mM, respectively, in a rat liver cell, what will be the ratio of [FBP]/[fructose-6-P] when the phosphofructokinase reaction reaches equilibrium?
Understanding the Relevance of Chaperones in Protein Folding Protein molecules, like all molecules, can be characterized in terms of general properties such as size, shape, charge, solubility/hydrophobicity. Consider the influence of each of these general features on the likelihood of whether folding of a particular protein will require chaperone assistance or not. Be specific regarding just Hsp7O chaperones or Hsp7O chaperones and Hsp60 chaperonins.
Which of the following is not an extracellular matrix role of carbohydrates? protect an insect’s internal organs from external trauma prevent plant cells from lysing after the plant is watered maintain the shape of a fungal spore provide energy for muscle movement
Some desperate cancer patients consume pills or other preparations containing shark cartilage, which the manufacturers tout as an anti-angiogenesis compound. The basis for these claims is the fact that blood vessels do not grow into cartilage. Responsible researchers point out that, regardless of the properties of cartilage, there is no way that eating it could provide any anticancer benefit. Why is this counterargument correct?
What property enables the residues of the amino acids serine, threonine, and tyrosine to be phosphorylated? They are polar. They are non-polar. They contain a hydroxyl group. They occur more frequently in the amino acid sequence of signaling proteins.
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Cholera is a disease caused by bacteria that make cholera toxin. In the presence of this toxin, chloride ion channels in cells of the small intestine lining are stuck in their open position. As a result, an excess of chloride ions (Cl) flows from these cells into the lumen of the small intestine. Movement of Cl creates a charge gradient, so sodium ions (Na+) also flow into the lumen. Explain why the movement of these ions into the lumen results in the life-threatening diarrhea that characterizes cholera.

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