« previous next »
« previous next »
 

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?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Optimum pH of Enzymes Optimum pH of Enzymes
pH Values of Some Familiar Substances pH Values of Some Familiar Substances
Enzymes: Note the enzyme has the ending ase as in sucrase and the actual substrate is sucrose. Enzymes: Note the enzyme has the ending ase as in sucrase and the actual substrate is sucrose.
Energy radiated by substances occurs over a wide range of wavelengths. Energy radiated by substances occurs over a wide range of wavelengths.
Allosteric enzymes Allosteric enzymes
Hormones Regulate Digestion, Enzymes Chemically Digest Food, and Bile Aids in Fat Hormones Regulate Digestion, Enzymes Chemically Digest Food, and Bile Aids in Fat
Video: Four Giant Convection Cells oF Earth

For a complete list of videos, visit our video library