Soap molecules have a hydrophilic head and a hydrophobic tail. What .pdf

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Soap molecules have a hydrophilic head and a hydrophobic tail. What happens when you put soap in water? The hydrophobic tails cluster together and exclude water The hydrophilic heads interact with water The hydrophobic tails bind to one another Only A and B are true A, B, and C are all true Soap molecules have a hydrophilic head and a hydrophobic tail. What happens when you put soap in water?A. The hydrophobic tails cluster together and exclude waterB. The hydrophilic heads interact with waterC. The hydrophobic tails bind to one anotherD. Only A and B are trueE. A, B, and C are all true Solution Soap molecules are amphipathic in nature, i.e. they have both polar and non-polar constituents in them. The polar head, composed of a salt group, is joined to a hydrophobic tail, which is non- polar. When the soap molecules are placed in water, these molecules orient themselves such that the polar head group interacts with water, whereas the hydrophobic chains bind to one another, so as to minimize the contact with water. The hydrophobic chains form a cluster, and this structure is known as micelles. Thus, option (E) is correct, because statements A, B, and C are all true..

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List three ways the epinephrine signaling pathway, phosphoinositide pathway, insulin signaling pathway, and EGF signaling pathway are SIMILIAR NO ESSAY JUST THE EXAMPLES Solution 1.They share many downstream components. For example, EGF can evoke metabolic responses, e.g., GLUT4 translocation whereas insulin can be mitogenic, especially in cancer cells. EGFR and IR activate same key signal transducers, although either receptor can stimulate both the Ras/ERK and PI3K/AKT pathways, the major routes of activation are different. 2. Receptors are membrane bound in all these signalling pathways. 3.They have a ligand-binding site on the cytosolic side of the membrane..

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