The Keychain consolidates various passwords and passphrases in one place and makes them accessible through a master password or passphrase. When an application (including the Finder) needs to access a password stored in the Keychain, the application asks you to unlock the Keychain if it's not already open.
Nutritional Summary: There are 345 calories in a 100g serving of Tesco Plain Flour. Calorie Breakdown: 3% fat, 84% carbs, 12% prot.
Not true. White whole wheat flour is making a good run at becoming part of mainstream American baking. Traditional all-purpose, or white, and whole wheat flours are milled from hard red wheat berries; both flours contain the wheat's endosperm, while whole wheat flour also contains the bran and germ. Whole wheat white flour is milled from the hard white wheat berry. It contains the entire wheat berry; the difference is in the white berry's bran, and the result is a lighter colored, sweeter tasting flour.