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Protein

Proteins are macromolecules found in all living organisms. They are composed of amino acids, which are linked together by peptide bonds to form long chains.

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They are composed of amino acids, which are linked together by peptide bonds to form long chains. Proteins have a wide range of functions in the body, including acting as enzymes, receptors, transporters, and structural components. They are involved in numerous biological processes, such as metabolism, DNA replication, cell signaling, and immune response. Proteins are essential for growth, maintenance, and repair of body tissues, and they play a crucial role in the regulation of various physiological processes.

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Actin

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Adaptive immune system

The adaptive immune system is one of the two main branches of the immune system, alongside the innate immune system.

Adenine

Adenine is a nucleobase, which is a component of nucleotides, the basic building blocks of DNA and RNA.

Adenosine triphosphate

Adenosine triphosphate (ATP) is a complex organic chemical that is involved in energy transfer within cells.

Amino acid

Amino acids are organic compounds that serve as the building blocks of proteins and play crucial roles in various biological processes.

Antibodies

Antibody

An antibody, also known as an immunoglobulin, is a large Y-shaped protein produced by the immune system to neutralize pathogens such as bacteria and viruses.

Antigen

An antigen is a substance that triggers an immune response in the body.