So a mixed day for England, who will be delighted to have seen their captain get a long-awaited century but not quite so thrilled with the overall complexion of the day, which definitely belonged to West Indies. Plenty of work to do tomorrow when they resume at 240-7. Join us for live text of the second day at 14:25 BST. Until then, adios.

Lunch: England 71-3 (25 overs) - Cook 31, Root 19

Tea: England 151-4 (56 overs) - Cook 60, Moeen 37

Close: England 240-7 (89.2 overs) - Buttler 0

Match scorecard

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

"West Indies bowled better, but England played some poor shots. Bell's shot was a shocker, Root got himself without overconfidence. I think England could have done better, and the game is definitely moving on, If England can get 280 or 290, that's something to bowl at."

Michael Blighe: The Cook doubters need to appreciate this ton for what it is. Mental grittiness and a much needed morale boost! Nice one Chef!

Sam: Not sure I've ever celebrated a century as emphatically as that, and what a time for a captain's innings.

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

"Trott had a great Test record before his illness but since his comeback he's on the move before the bowler lets the ball go. If you do that to pace bowlers and it's short of a length you are in serious difficulties. You don't have time to react and you are in no-man's land.

"All the bowlers have seen that, especially the Australian fast bowlers, and they will be licking their chops."

England all-rounder Moeen Ali on Sky Sports: "Once I played 30-40 balls I felt quite comfortable, it was just a shame I got run out again. Cooky hit it but I didn't think there was a run, but I trusted the call. It's great for him to get a hundred, it was a shame he got out at the end. We probably lost two too many wickets but we've still got batsmen and hopefully we can get to 350.

"I'm looking forward to bowling on there tomorrow, or hopefully the day after!"

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

"Cook made two mistakes only. He ran Moeen Ali out, he hit it hard straight to the fielder and I don't think Usain Bolt would have made it. I thought Moeen himself batted very well - he did it when England were under pressure and they've got England to a reasonable total."

Former England spinner Shaun Udal:, external Very pleased for Captain Cook on his 100. Apart from anything else you'll never meet a nicer man, EVER.

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

"Cook has played splendidly, he's been good for the team to bat all day when wickets have been going throughout day.

"I watched his feet, he was going back and forward and above all he played straight. He fully deserved his hundred. In Tests, he's not been in that bad form, we've got confused because he was struggling in one-day cricket. With concentration, patience and footwork like that he will always make runs in Test cricket."

Image source, Getty Images

England 240-7 (89.2 overs) after winning the toss

Not out batsman: Buttler 0 from 9 balls

Fall of wickets: 0-1 (Trott 0), 38-2 (Ballance 18), 38-3 (Bell 0), 91-4 (Root 33), 189-5 (Moeen 58), 233-6 (Stokes 22) 240-7 (Cook 105)

Bowling figures: Taylor 15-7-33-0, Gabriel 12-2-36-2, Holder 16-4-34-2, Samuels 26.2-5-51-1, Permaul 20-1-86-1

Match scorecard

Click the live audio icon at the top of the page for Test Match Special commentary

Alastair Cook can't believe what he's done. He's slumped on his bat handle, he doesn't want to go, but he has to. With five balls to survive before the close, he tries to cut Marlon Samuels and gets an under-edge to Denesh Ramdin. That's the end of the day, and make no mistake, it's West Indies' day. England in a pickle.

Image source, Reuters

Tino Best
West Indies fast bowler on BBC Test Match Special

"This is why I love Test cricket because it separates the sheep from the goats."

Andy Donley: That has to be my favourite sporting moment of 2015 so far. Hopefully the start of another special year for Cook.

Ollie Kemp: I've seen many hundreds in my time but enjoyed none as much as that. Well done Cooky, and welcome back!

Now, the emotion of that Cook hundred shouldn't disguise the fact that this has been a mixed day for England, especially with that wicket of Ben Stokes. They'll be desperate to get through to the close without further losses. Holder keeps Buttler on 0 with a maiden.

Tino Best
West Indies fast bowler on BBC Test Match Special

"It was one of the better hundreds I've seen. That is how you score hundreds in Test cricket, by playing straight in the v to start."

Becky Davies: Think all England cricket fans just simultaneously cheered and breathed a sigh of relief!

Pete Hotchkiss: I SO hope that's the start of Cook finding some serious runs again now.

Image source, Getty Images

A great knock from Cook, who has stood tall while others around him have crumbled today - and really it was no more than he deserved after a rich vein of recent form in which he has appeared to rediscover his famed powers of concentration.

Andrew Samson
BBC Test Match Special statistician

"It's Cook's fifth Test century v West Indies and second at this ground following a century here in 2009.

"Coming from 259 balls, it also equals his slowest Test century - the century he made against Pakistan."

Image source, Getty Images

Ed Smith
Ex-England batsman on BBC Test Match Special

"Think of the journey Cook has been on and he's answered it with a wonderful performance for England."

It's there! Alastair Cook lets out a scream of jubilation as he finally ends his two-year long century drought. Not since May 2013 have we seen him raise his bat for three figures but he's done it again, century number 26 for England. He gets a ball on his legs from Gabriel, clips it through midwicket and suddenly all the frustrations of the past two years melt away.

Image source, Getty Images