Biological & Chemical Substances terms

A substance present in all living cells that provides energy for many metabolic processes and is involved in making RNA.

A substance found in soybeans that may slow down or stop the spread of cancer.

A substance produced in the brain, especially in the pituitary gland, that blocks the sensation of pain.

A radioactive substance that is given through a vein, and collects in bone cells and in tumor cells that have spread to the bone.

A substance made by the pancreas.

A hormone formed by the C cells of the thyroid gland.

A substance made from the flower of the marigold plant Calendula officinalis.

A substance made in the muscle and liver tissue and found in certain foods, such as meat, poultry, fish, and some dairy products.

A substance found in yellow and orange fruits and vegetables and in dark green, leafy vegetables.

A chemical compound that binds tightly to metal ions.

A substance made up of elements, such as hydrogen or sodium.

A substance found in certain plants, including blessed thistle.

A substance made by the pancreas.

A hormone made in the pituitary gland.

A compound that is excreted from the body in urine.

A chemical compound that is used to make one of the building blocks of DNA and RNA.

A hormone made from testosterone in the prostate, testes, and certain other tissues.

A substance found in certain plants, including rhubarb.

A chemical substance made when an acid and an alcohol combine and water is removed.

A radioactive substance being studied as an imaging agent in head and neck cancers and other types of cancer.