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Did you know?
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Did you know?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.