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Examen

Microbiology Exam 2 | Practice Questions, Answers & Study Guide 2026/2027

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Microbiology Exam 2 | Practice Questions, Answers & Study Guide 2026/2027

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what is anything that has mass?


matter


what is the smallest unit of matter?


atom


what is a single type of atom?


elements


what is molecules?


combinations of atom




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what are the 3 compounds, what are they?


-Compound: 2 or more types of an atom
-Organic Compound: contains carbon and hydrogen
-Biomolecules: found in cells


What are the two types of bonds?
What do their lines look like?


-Covalent Bond: Solid Line
-Hydrogen Bond: Dashed Line


-What happens to Electrons in a covalent bond?
-How strong/weak is the bond?


-Electrons are shared between two atoms
-Strongest Bond




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-What happens to electrons in an iconic bond?
-How strong/weak is the bond?


-Electrons are transferred from one atom to another, not shared
-Middle Strength Bond


-How are hydrogen bonds created?
-How strong/weak is the bond?


-through the attraction between a positive hydrogen atom in one molecule and a highly electronegative atom
(like oxygen, nitrogen, or fluorine)
-Weak Bond


what is polarity?


having two opposite sides or charges — like a positive and a negative.


what is cohesion adhesion?
what does it create?


-property of water, where is can stick to itself
-creates surface tension on water

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which way does water freeze?


top to down


what is hydrophobicity?


-Water fearing/ Does not dissolve in water
-Example: Oil


what is hydrophilic?


-Water loving
-Example: Sugar


can ions and polar molecules dissolve in water?


yes




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Subido en
20 de octubre de 2026
Número de páginas
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Escrito en
2026/2027
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