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AP Biology Unit 1 Test Study Guide with Complete Solutions
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AP Biology Unit 1 Test Study Guide with Complete Solutions water - Answer️️ --polar molecule -polar colvalent bonds -oxygen end is partial negative and the hydrogens have a partially positive end -cohesive polar covalent bonds - Answer️️ --opposite ends of the molecule have opposite ...

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  • September 13, 2024
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  • 2024/2025
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  • ap biology unit 1 test study guide with complete s

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EXAM_SOLUTIONS GUARANTEED SUCCESS 2024/2025 ACADEMIC YEAR




©SOPHIABENNETT 9/3/24 2024/2025

, ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM



AP Biology Unit 1 Test Study Guide with
Complete Solutions


water - Answer✔️✔️--polar molecule


-polar colvalent bonds

-oxygen end is partial negative and the hydrogens have a partially positive end

-cohesive

polar covalent bonds - Answer✔️✔️--opposite ends of the molecule have opposite

charges

cohesion - Answer✔️✔️--H bonding between H2O creates it (sticky)

-allows for the movement of water against gravity

-high surface tension

-water moves up a tree by transpiration (helped by ____)

adhesion - Answer✔️✔️--H2O molecules form H bonds with other substances

~capillary action

~meniscus

~water climbs up fiber

solvent - Answer✔️✔️--water is the universal one

-polar water molecules will surround the (+) and (-) ions causing the ions to separate

and dissolve

-dissolve solutes and create aqueous solutions


Page | 1

, ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM


hydrophilic - Answer✔️✔️--some molecules have an affinity for water

-polar and ionic molecules

-ex: cotton, cellulose, paper

hydrophobic - Answer✔️✔️--some substances do not have an affinity for water

-nonpolar and non ionic substances

-ex: fat, glycerol, oils

floats - Answer✔️✔️--less dense when it is solid, water ______

-forms crystal lattice structure

-important because oceans and lakes do not freeze solid

~insulates water below

~seasonal turnover of lakes

specific heat - Answer✔️✔️--the amount of heat that must be absorbed or lost for 1g to

change its temperature by 1C

-water had high _____ due to H bonding

-resists change in temp

-moderates temp on earth

evaporative cooling - Answer✔️✔️--organisms use to regulate their temperature

-ex: sweating

-water evaporates through a surface, cooling occurs

acidic - Answer✔️✔️-If [H+]>[-OH]

basic - Answer✔️✔️-If [-OH]>[H+]

pH scale - Answer✔️✔️--how acidic or basic a solution is


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