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BIOL 212 Exam 1 - Iowa State (Manz) Questions with
Detailed Verified Answers (100% Correct Answers)
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Quiz: Partial Charge
Ans: -On polar covalent bonds
-Electrons are shared unequally
Quiz: Molecule shape affects polarity b/c
Ans: -it affects the type of bonds formed.
-If central atom shares electrons, it is nonpolar.
-If central atom takes electrons, it is polar
Quiz: Hydrogen Bonds
Ans: -Weak interaction between 2 molecules or different types of the same
molecule
-Results from the attraction between a hydrogen atom with a partial charge
and another with a partial negative charge
-Stronger in large amounts
-Weakest bond
Quiz: C,N,O,P,S
Ans: -good building blocks
-easily form covalent bonds
Sunday, 02 March 2025
,Quiz: Polar Covalent
Ans: -Electrons not shared equally
-pulled to more electronegative element
-partial charge
Quiz: Ionic
Ans: -electron is completely transferred
-opposite charge
-full charge
Quiz: nonpolar covalent
Ans: electrons shared equally
Quiz: Water
Ans: - Water is a good solvent b/c polarity and ability to form hydrogen
bonds
-Hydrogen bonds allow for cohesion and surface tension
-Easily disassociates ions
Quiz: 4 functions common to all cells
Ans: -reproduction
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, -information (genetics)
-ability to store and make energy
-allow nutrients to enter
Quiz: Louis Pasteur's experiment
Ans: -Cells left out in the open to see if they would grow in optimal
conditions
-All cells come from preexisting cells
-Swan neck flask rejects spontaneous generation
Quiz: Isotopes
Ans: Different number of neutrons
Quiz: Electronegativity
Ans: -determined by number of protons in the nucleus
-also by the distance between nucleus and valance shell
-Increases up the table and to the right
-O>N>S=C=H=P
Quiz: Acids
Ans: -Give up protons during reactions
-increase proton concentration in a solution
-DECREASES PH
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