Which objects in the process of human sight can detect light but not color?

Bipolar cells are intermediary neurons that transmit signals from photoreceptors (rods and cones) to ganglion cells. Although they play a vital role in visual processing, they do not directly detect light or color themselves; rather, they process the signals received from rods and cones.

Cones are photoreceptor cells that are responsible for color vision and function best in bright light. They contain three types of photopigments sensitive to different wavelengths of light (red, green, and blue), enabling the perception of a full spectrum of colors. Thus, they are not the correct choice for detecting light without color.

Amacrine cells are also interneurons in the retina that modulate the signal between bipolar cells and ganglion cells. They contribute to various aspects of visual processing, including motion detection and contrast enhancement, but they do not detect light or color themselves.