the back end of the day he had a good partnership with Jonny.”
Bell, who survived a confident caught behind appeal off Babar, was finally stumped off Shah. He hit two boundaries and a six during his three hour, 37 minute innings.
Bell and Cook had steadied the innings with a 71-run stand for the second wicket.
England had added three runs to their lunch score of 87-1 when Cook fell to a soft dismissal as he pushed a Shah delivery straight into the hands of short leg fielder Azhar Ali.
Cook hit four boundaries during his 119-ball knock.
England had hoped Root would supplement Bell but the fast-rising batsman fell to a loose shot off paceman Rahat Ali and was smartly snapped low to his right by wicketkeeper Sarfraz Ahmed.
Resuming at 4-0, England lost Ali in the seventh over of the day when he miscued an aggressive shot off spinner Shoaib Malik and was caught in the slip by Younis Khan for 14.
Cook, who made an epic 263 in the drawn first Test in Abu Dhabi, looked in no trouble as he negotiated Pakistan’s pace-cum-spin attack with confidence and appeared set for another half-century before he fell.
Bell smashed Babar for a six early in the innings and ably supported his skipper, adding valuable runs for the second wicket partnership with Cook.
Pakistan, hoping to maintain their impressive record since moving matches to the United Arab Emirates, won the second Test after the first was drawn.
Score Board
Pakistan won toss
Pakistan 1st innings 234 all-out (Sarfraz Ahmed 39; Anderson 4-17)
England 1st innings
*A N Cook c Azhar b Yasir 49
M M Ali c Younis b Shoaib 14
I R Bell st Sarfraz b Yasir 40
J E Root c Sarfraz b Rahat 4
J W A Taylor not out 74
†J M Bairstow not out 37
Extras (lb 2, nb 2) 4
Total (4 wickets; 92 overs) 222
To bat: B A Stokes, S R Patel, A U Rashid, S C J Broad, J M Anderson
Fall: 1-19, 2-90, 3-97, 4-139
Bowling: Rahat 16-8-35-1; Yasir 29-3-79-2; Wahab 15-4-23-0 (2nb); Zulfiqar 25-2-60-0; Shoaib 5-2-16-1; Azhar 2-0-7-0
Umpires: C B Gaffaney (New Zealand) and B N J Oxenford (Australia). TV umpire: P R Reiffel (Australia). Match referee: A J Pycroft (Zimbabwe)