AP Biology Unit 1 Test QUESTIONS

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ANSWERS— GRADED A+

water -polar molecule -polar colvalent bonds -oxygen end is partial negative and the hydrogens have a partially positive end -cohesive

polar covalent bonds -opposite ends of the molecule have opposite

charges

cohesion -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 -H2O...