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UCI Bio 93- Midterm 1 Exam Study Guide. $10.49   Add to cart

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UCI Bio 93- Midterm 1 Exam Study Guide.

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  • UCI Bio 93

UCI Bio 93- Midterm 1 Exam Study Guide. Smallest unit of chemical elements - answeratoms two or more atoms combined - answermolecules two or more elements combined in a fixed ration - answercompound ... are 4 elements that make up 96% of all living matter - answerC, O, H, N what is the stronge...

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  • October 2, 2024
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  • 2024/2025
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  • UCI Bio 93
  • UCI Bio 93
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UCI Bio 93- Midterm 1 Exam Study Guide.


Smallest unit of chemical elements - answer✔atoms


two or more atoms combined - answer✔molecules


two or more elements combined in a fixed ration - answer✔compound


... are 4 elements that make up 96% of all living matter - answer✔C, O, H, N


what is the strongest bond? - answer✔covalent bond


sharing of electrons by two atoms - answer✔covalent


transfer of electrons between two atoms - answer✔ionic


what is a weak bond? - answer✔hydrogen bond


the H atom forms one covalent bond and a second weaker bond with an atom in another

molecules - answer✔hydrogen bond


equal sharing of electrons


(two of the same element) - answer✔nonpolar


unequal sharing of electrons

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has a charge


(water) - answer✔polar


what is the charge of O in water? - answer✔negative


what is the charge of H in water? - answer✔positive


interactions between water molecules


(H2O with H2O) - answer✔cohesion


interactions between water and other molecules - answer✔solvent


what is the maximum amount of bonds that hydrogen can form? - answer✔4 bonds


in room temperature of water what % is the maximum amount of bonds going to be made? -

answer✔15%


when H+ concentration increases... - answer✔more acidic


what H- concentration decreases... - answer✔more basic


affinity for water


(polar and ionic bonds) - answer✔hydrophilic


repel water


(nonpolar covalent bonds) - answer✔hydrophobic

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chemical processes are sensitive to pH changes and resist change in the pH solution -

answer✔buffers


the pH of human blood is... - answer✔7.4


what are the main buffers in blood? - answer✔carbonic acid and bicarbonate


response to a rise in pH in blood (becomes more basic) - answer✔right


response to a drop in pH in blood (becomes more acidic) - answer✔left


building blocks for biological molecules - answer✔carbon atoms


how many VE does carbon have? - answer✔4 VE


how do functional groups join to the carbon skeleton? - answer✔covalent bonds


-alcohols

-polar


-dissolves organic compounds (like sugars) - answer✔hydroxyl


-ketones (within skeleton)


-aldehydes (at the end of skeleton) - answer✔carbonyl


-is acidic

-weak acid


-hydroxyl+carbonyl - answer✔carboxyl

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