When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed. Explain WHY this is a positive feedback loop.

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Explanation:

The process of blood clotting is a positive feedback loop because it is a process that needs to go into completion, unlike in negative feedback loops in which the initial status quo (the setpoint) needs to be returned to.

In positive feedback loops, when the system senses a change from normal, the control center increases this change until the initial process that triggered the change goes to completion.

The bleeding in a cut skin needs to be stopped, hence, the control center will signal the effector to keep releasing hormones for more platelets to be formed until the bleeding subsides. Hence, the process is a positive feedback loop.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure