Exam: Cambridge English: C1 Advanced (CAE)

Definition: A chemical compound that is a salt or an ester derived from oxaloacetic acid, which plays a role in metabolic processes.

Example: Oxaloacetate is important in the citric acid cycle, helping to produce energy in cells.

Definition: A type of chemical compound that has a five-membered ring made up of three carbon atoms, one nitrogen atom, and one oxygen atom, often used in medicinal drugs.

Example: Oxazole is used in the synthesis of various pharmaceuticals.

Definition: A term that refers to a chemical compound formed by the reaction of oxygen with another element, typically resulting in a substance that contains oxygen and that element.

Example: Iron oxid forms when iron reacts with oxygen in the air.

Definition: A substance that causes another substance to lose electrons or hydrogen, often resulting in a chemical reaction.

Example: Oxygen is a common oxidant that helps in the combustion process.

Definition: A type of enzyme that helps speed up the process of oxidation, particularly by reacting with oxygen to change other substances.

Example: The scientist studied the oxidase to understand its role in cellular respiration.

Definition: A chemical compound that contains oxygen and another element, typically formed when a substance reacts with oxygen.

Example: Iron oxidates when it reacts with oxygen in the air, forming rust.

Definition: To combine with oxygen or to undergo a chemical reaction in which electrons are transferred, often resulting in a change in the oxidation state of a substance.

Example: When iron oxidates, it forms rust.

Definition: A chemical process where a substance combines with oxygen or loses electrons, often resulting in a change in its properties.

Example: The oxidation of iron leads to rust formation.

Definition: Relating to or resulting from a chemical process where a substance combines with oxygen, often leading to a change in its properties.

Example: The oxidative process in the body helps to break down food for energy.

Definition: In a manner that involves or relates to the process of oxidation, which is a chemical reaction where a substance loses electrons.

Example: The compound reacts oxidatively, leading to the formation of new products.

Definition: To combine with oxygen or to undergo a chemical reaction in which electrons are transferred, often resulting in a change in the substance's properties.

Example: Iron will oxidise if it is exposed to moisture and air for a long time.