Easy fold? A5o

[cockandbull]

Villain in this hand is tight and very passive. Does this make it an easy fold?

Party Poker 1/2 Hold'em (8 handed)

Preflop: Hero is BB with A/images/graemlins/heart.gif, 5/images/graemlins/club.gif. MP2 posts a blind of $1.5. CO posts a blind of $1.
UTG folds, UTG+1 calls, MP1 folds, MP2 (poster) checks, CO (poster) checks, Button folds, SB completes, Hero checks.

Flop: (5.50 SB) 4/images/graemlins/diamond.gif, Q/images/graemlins/club.gif, A/images/graemlins/club.gif <font color="blue">(5 players)</font>
SB checks, <font color="CC3333">Hero bets</font>, UTG+1 folds, MP2 folds, CO folds, SB calls.

Turn: (3.75 BB) J/images/graemlins/spade.gif <font color="blue">(2 players)</font>
SB checks, <font color="CC3333">Hero bets</font>, <font color="CC3333">SB raises</font>, hero...

[ncboiler]

What you need to pay attention to here is the pot size. With this very small pot how certain are you that you have the best hand. It sounds like you are very sure you are beat so it's an easy fold.