The Order or Sequence of Amino Acids in a Protein

question 7

Multiple Choice

The order or sequence of amino acids in a protein as determined by genetic code is known as a protein's _____ structure.

• A)primary
• B)secondary
• C)tertiary
• D)quaternary

---

Definitions:

Photoreceptor

Sensory receptor that is sensitive to light—for example, rods and cones of the retina.

Lens Flattens

A process where the lens of the eye changes shape, becoming less curved, to focus distant objects clearly onto the retina.

Ciliary Muscles

Ring-shaped muscles located in the eye that control the shape of the lens to focus on objects at varying distances.

Pupil Diameter

The size of the opening in the center of the iris of the eye, which varies to regulate the amount of light reaching the retina.