HAPU2: SEC. 2 BONDS, pH + ENERGY

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Last updated 1:44 AM on 9/24/26
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16 Terms

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ionic bond

e- transferred, creates opp. charged ions that attract (transfer)

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covalent bond

e- shared, most abundant type of bond in body (share)

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polar covalent

e- shared unequally

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nonpolar covalent

e- shared equally or nearly equally

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hydrogen bond

weak attraction btn slightly charged parts of polar molecules (weak attraction)

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acid

donates H+, pH below 7

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base

accepts H+, pH above 7

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neutral

pH is 7

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how does the body maintain pH?

buffers, lungs, kidneys, energy

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buffers

resist sudden changes in pH

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lungs

help regulate CO2 levels

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kidneys

help regulate H+ and bicarbonate

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glucose

sugar obtained from food, used to make energy

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glycogen

stored form of glucose

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ATP

main usable energy source for cells

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energy pathway

food > glucose > ATP > usable cellular energy