Review

Question 1

sharing of electron pairs

Answer 1

covalent bond

Question 2

attraction of opposite charges

Answer 2

ionic bond

Question 3

sharing of H atoms

Answer 3

hydrogen bonds

Question 4

Forcing of hydrophobic portion of molecules together in presence of polar substances

Answer 4

hydrophobic interaction

Question 5

weak attractions between atoms due to oppositely polarized electrons clouds

Answer 5

van der Waals attraction

Question 6

Holds 3 atoms of a water molecule together

Answer 6

Polar Covalent Bonds

Question 7

Holds the different water molecules togerther

Answer 7

Hydrogen Bond

Question 8

Emergent Properties of Water

Answer 8

Cohesion, High Specific Hear, High heat of vaporization, lower density of ice, and solubility

Question 9

water-loving” molecules—soluble such as salts and polar substances

Answer 9

hydrophilic

Question 10

“water-fearing” non-polar molecules (lots of C-H bonds like oil)

Answer 10

hydrophobic

Question 11

–more solute, fewer unbound water molecules

Answer 11

Hypertonic

Question 12

Less solute, more unbound water molecules

Answer 12

Hypotonic

Question 13

Random molecular motion produces net migration of nonpolar molecules toward region of lower concentration

Answer 13

direct diffusion

Question 14

Polar molecules move through a protein channel; net movement is towar region of lower concentration

Answer 14

Protein channel

Question 15

molecule binds to carrier protein in membrane and is transported across; net movement is toward region of lowr concentraiton

Answer 15

Protein carrier in facilitated diffusion

Question 16

Diffusion water acros membranse via osmosis

Answer 16

Aquaporins in Osmosis