MRI Has Been Useful for Imaging Many Areas of the Body

question 10

Multiple Choice

MRI has been useful for imaging many areas of the body, particularly the brain, because of:

• A) the ability to see calcium deposits.
• B) differentiation of gray matter from white matter.
• C) new motion techniques.
• D) fat suppression.

---

Definitions:

Activation Energy

The minimum amount of energy required to start a chemical reaction.

Catalysts

Substances that increase the rate of a chemical reaction without themselves undergoing any permanent chemical change.

Enzymes

Biological molecules that significantly speed up the rate of virtually all of the chemical reactions within cells.

Anabolism

The constructive phase of metabolism in which cells synthesize complex molecules from simpler ones, such as proteins from amino acids.