Radioactive Isotopes Are Useful in Biological Studies Because

question 28

Multiple Choice

Radioactive isotopes are useful in biological studies because

• A) an organism will take in a molecule with the isotope and use it normally but the radioactive decay can be detected.
• B) an organism will take in a molecule with the isotope but will only use it in a few specific reactions not the normal ones.
• C) an organism will take in the molecule with the isotope and then remove the isotope and send it through the excretory system while replacing the isotope with a normal atom.
• D) they are easily visible and normal atoms are not.
• E) they are easy and inexpensive to use in studies.

---

Definitions:

Debriding

The medical process of removing dead, damaged, or infected tissue to promote healing of the remaining healthy tissue.

Granulation Tissue

Fresh connective tissue and tiny blood vessels that develop on a wound's surface as part of the recovery process.

Aging Skin

Changes that occur in the skin as part of the natural aging process, including wrinkles, dryness, and loss of skin elasticity.

Sweat Gland Activity

The physiological process involving the production and secretion of sweat by the glands in the skin.