Bio 105 Final Exam Review | Baamboozle - Baamboozle

English 35 Public

Isotopes, Hydrophobicity/hydrophilicity, Polar/ nonpolar bonds, molarity, isomers, dehydration synth, amphiapathic moles., protein structure, cell size limits, organelles, more...

Study Slideshow

#isotopes #Hydrophobicity #hydrophilicity #polar bonds #nonpolar bonds

What is an isotope?

Answer must include: Same # protons, Different # neutrons, different molecular mass

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2) Fill in the isotope table

See Mo's Key

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3) Define and contrast the terms 'hydrophobic' and 'hydrophilic'

-Phobic: tending to repel or fail to mix with water. -Philic: having a tendency to mix w/, dissolve in, or be wetted by water (bonus: polar/nonpolar connection)

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4) Define and contrast the difference between polar and non-polar molecules

Polar: A type of covalent bond between two atoms in which electrons are shared unequally. nonpolar: covalent bond w/ equal sharing of electrons

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5) Label each of the following as polar or nonpolar: Water, Methanol, hydrogen cyanide, oxygen, propane

water: polar methanol: polar hydrogen cyanide: polar oxygen: nonpolar propane: nonpolar

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6)What units are used to measure molarity? What are the units for molar mass?

Molarity= moles & liters (mol/L). Molar Mass= grams & moles (g/mol)

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7a)How many moles are in 2.3 grams of phosphorus? 7b) How many grams are in 2.3 x 10-4 moles of calcium phosphate, Ca3(PO3)2?

a) 0.074265 moles = 0.074 moles b) 0.06398 g = 0.064 g

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8) What are isomers?

Isomers are pairs of molecules having the same chemical formula but different chemical structures.

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9) List the 7 functional groups and their structure. for bonus points:something that can be used to I.D/remember them

Carbonyl (-CO), hydroxyl (-OH), carboxyl (-COH), methyl (-CH3), sulfhydryl (-SH), phosphate(-PO4), amino (-NH2)

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10) What type of reaction is this

Dehydration synthesis

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11) These three molecules are examples of what type of molecule? Give definition for this type of molecule

Amphiapathic: Molecules that have both polar and non polar regions & properties

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12) What are the 4 levels of protein structure? Describe/differentiate them

primary, secondary, tertiary, Quaternary (https://www.khanacademy.org/science/biology/macromolecules/proteins-and-amino-acids/a/orders-of-protein-structure)

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13) Explain how volume and area contribute to limits on cell size.

cells must be small in volume in order to maintain a large enough surface area-to-volume ratio and an ideal internal volume(vol increases faster than s.a).

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14) In 3 minutes or less, label and define as many of the organelles on the cell worksheet being passed out

see key

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15) Describe the plasma membrane (what makes it up, what is it's purposes?)

Answer must include: phospholipids, cholestrol, proteins Functions: control cell size, protect cell from external environ., control passage in&out of cell

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16) Describe Chemiosmosis. Where do we see it?

energy from a proton gradient is used to make ATP. This gradient is sometimes called the proton-motive force

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