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.
A single, six-inch diameter, flour tortilla carries 150 calories. A wheat tortilla has only 53 calories. A white flour tortilla gets 29 of its calories from fat. That's 3.3 grams of fat per serving. Of these, 0.8 grams are unhealthy saturated fats. The remaining fats are heart-healthy polyunsaturated and monounsaturated fats. Just five calories in a wheat tortilla come from fats, a total of 0.6 grams. A wheat tortilla's fats consist of 0.1 grams of saturated fats and 0.5 grams of unsaturated fats. Nearly all of the carbohydrates in either kind of tortilla are complex carbohydrates, as opposed to dietary fiber or sugar.