The Tip Region of the Photoreceptor Cells Are Removed by Cells

question 22

Multiple Choice

The tip region of the photoreceptor cells are removed by cells of the retinal pigment epithelium by

• A)apoptosis.
• B)phagocytosis.
• C)opsin.
• D)the bleaching reaction.

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Definitions:

Basic Unit

The fundamental, smallest, or simplest quantity or component in a system or set of measurements often used as a standard of measurement.

Metric System

A measurement system that uses the meter for length, liter for volume, and gram for weight or mass, all based on decimal calculations.

Ml

Milliliter, a unit of volume in the metric system equal to one thousandth of a liter.

Ounces

A unit of weight in the avoirdupois system, equivalent to 1/16th of a pound or approximately 28.35 grams.