exam 2 material Flashcards Preview

baby bio > exam 2 material > Flashcards

Flashcards in exam 2 material Deck (3)
Loading flashcards...
1
Q

phospholipids are large organic molecules with a __,polar phosphate head connected to ___,non polar fatty acid tails. How do these molecules arrange themselves to form a mostly impermeable barrier between a liposome and its environment

A

hydrophilic; hydrophobic; they line up hydrophobic tails facing each other at the center line of the membrane with the hydrophilic heads facing outward, away from the center line of the membrane

2
Q

during the process of ___, water diffuses across a semipermeable membrane from a hypotonic solution to a hypertonic solution

A

osmosis

3
Q

adenine, thymine, guanine, and cytosine are the ___ building blocks for DNA; they are organized in different combos to code for all of the proteins needed to accomplish everything the cell does

A

nucleotide