Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
what do both eukaryotes and prokaryotes have in common
|
use DNA as their genetic material
|
|
statement: proteins can function as enzymes
|
they do not have glycosidic linkages; they are soluble in water
|
|
REMEMBER: glycine is useful because:
|
it is small enough to fit into tight corners of protein molecules
|
|
which protein structures are destroyed by denaturation
|
secondary, tertiary, quarternary
|
|
what is a pentose
what is a hexose |
5-carbon sugar
6-carbon sugar |
|
peripheral membrane proteins do:
|
-interact with biological membranes through electrostatic interactions and H-bonding with head groups of lipids
|
|
integral membrane proteins are:
|
exposed to the aqueous surroundings of the membrane; bond its hydrophilic end with peripheral membrane
|
|
what forces stabilize the lipid bilayer
|
-van der Waals interactions
-electrostatic and H-bonding among polar heads and between them and surrounding water |
|
low coincidence of lipid flip-flop preserves
|
membrane asymmetry
|
|
what is an antiporter?
|
membrane protein that transports two species in opposite directions across the membrane
|
|
statement: hydrophobic molecules can diffuse across a membrane without the need for a transporter-protein
|
ya
|
|
what is: the specific transport of a molecule down its concentration gradient via a transporter protein
|
facilitated diffusion
|