Definition: A substance produced in the stomach that is changed into an active enzyme called pepsin when it comes into contact with stomach acid.

Example: Pepsinogen is secreted by the stomach lining and is essential for digesting proteins.

Definition: A small chain of amino acids that are linked together, which can be formed from proteins during digestion or other processes.

Example: The scientist studied the effects of different peptids on muscle growth.

Definition: A type of enzyme that helps break down proteins into smaller parts called amino acids by cutting the bonds between them.

Example: Peptidases play a crucial role in digestion by breaking down dietary proteins.

Definition: A type of compound made up of two or more amino acids that are connected together. These compounds can be found in nature or made artificially and are important in biology.

Example: Insulin is a peptide that helps regulate blood sugar levels in the body.

Definition: Relating to or made up of small chains of amino acids, which are the building blocks of proteins.

Example: The scientist studied the peptidic bonds that hold the protein structure together.

Definition: A substance that makes up the cell walls of certain bacteria, consisting of sugar and protein chains that form a strong structure.

Example: Peptidoglycan provides structural support to bacterial cells, helping them maintain their shape.

Definition: To break up a solid substance into smaller particles so that it can mix evenly in a liquid, forming a colloid.

Example: The scientist used a special process to peptize the solution, making it more stable.

Definition: A type of protein that has been broken down into smaller parts, which can dissolve in water. It is often used in laboratory cultures to help grow bacteria.

Example: The scientist added peptone to the culture medium to provide nutrients for the bacteria.

Definition: A type of inorganic acid that has a high amount of oxygen compared to other related acids, often containing a peroxy group.

Example: Peracids are used in various chemical reactions, including oxidation processes.

Definition: A type of salt that is made from a combination of borate and hydrogen peroxide.

Example: The chemist used perborate in the experiment to create a bleaching agent.