NL5 QK oop

Hi!
Should i raise here on flop?For both, value and defense.
I think that the turn and the river couldnt play different,because its not much value in raise on turn and in bet on river,or is it?

Hand converted with online PokerStrategy.com hand converter:

Leosztás lejátszása

$0.02/$0.05 No-Limit Hold'em (6 handed)

Known players:
[tg]MP2$3.38:///////;MP3$12.66:///////;CO$8.33:///////;BU$5.22:///////;SB$4.77:///////;BB (Hero)$5.05:///////;[/tg]

Preflop: Hero is BB with Q:d, K:c.
3 folds, BU raises to $0.15, SB folds, Hero calls $0.10.

Flop: ($0.32) 9:d, Q:c, T:c (2 players)
Hero checks, BU bets $0.20, Hero calls $0.20.

Turn: ($0.72) 7:c (2 players)
Hero checks, BU bets $0.50, Hero calls $0.50.

River: ($1.72) A:s (2 players)
Hero checks, BU checks.

Final Pot: $1.72.

Results follow:

Hero shows a pair of queens(Qd Kc).
BU shows a pair of aces(Ac Kh).

BU wins with a pair of aces(Ac Kh).