Exam: Cambridge English: C1 Advanced (CAE)

Definition: To produce a tough protein that is found in skin, hair, and nails, or to change into a form that contains this protein.

Example: As the skin cells mature, they begin to keratinize, forming a protective layer.

Definition: To change something into a tough protein called keratin, which is found in hair, nails, and skin.

Example: The skin cells will keratinize to form a protective barrier.

Definition: Made of a tough protein that is found in hair, nails, and the outer layer of skin.

Example: The outer layer of the animal's skin is keratinous, providing protection against the environment.

Definition: The process in which the body produces ketone bodies, typically during periods of low carbohydrate intake or fasting, often seen in conditions like diabetes.

Example: During fasting, the body enters a state of ketogenesis to provide energy from fat stores.

Definition: A type of organic compound that contains a carbonyl group (C=O) bonded to two carbon atoms. These compounds are often used in various chemical processes and can be found in substances like acetone.

Example: Acetone is a common ketone used as a solvent in many industries.

Definition: A type of sugar that has a ketone group in its structure, such as fructose.

Example: Fructose is a common example of a ketose found in many fruits.

Definition: A device with keys that you press to input data into a computer or to play music.

Example: I use my keyboard to type messages and play games on my computer.

Definition: To input text or data into a computer using a device with keys, or to play music on a musical instrument with keys.

Example: She learned how to keyboard her favorite songs on the piano.

Definition: A single action of pressing a key on a keyboard.

Example: Each keystroke is recorded when you type on your computer.

Definition: A title for a governor or viceroy in Egypt, particularly one who ruled from 1867 to 1914 under the authority of the Turkish sultan.

Example: The khedive implemented several reforms to modernize Egypt during his rule.

Definition: To take someone away by force or threat, often to demand money for their return.

Example: The police worked hard to rescue the child who had been kidnapped.

Definition: A unit used to measure the length of a nucleic acid chain, equal to one thousand nucleotides or base pairs.

Example: The genetic sequence was analyzed and found to be three kilobases long.