Kaplan Nursing Entrance Practice Exam

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Study for the Kaplan Nursing Entrance Exam. Dive into questions with detailed explanations and hints to enhance your understanding. Prepare strategically for a successful exam experience!

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What are the two types of photoreceptor cells in the eye?

Cones and Rods
Optic Cells and Visual Cells
Retinal Cells and Ganglion Cells
Photonic Cells and Sensory Cells

The correct answer is: Cones and Rods

The two types of photoreceptor cells in the eye are indeed cones and rods. Cones are responsible for color vision and function best in bright light conditions, allowing us to see fine details and a broad spectrum of colors. They are concentrated in the fovea, the center of the retina, where visual acuity is highest. Rods, on the other hand, are more sensitive to low light levels and are crucial for night vision. They do not detect color but can perceive movement and shapes in dim light, making them essential for seeing in low-light environments. Rods are distributed more in the peripheral regions of the retina, enabling us to detect motion and see in darkness. This distinction between the two types of photoreceptors is vital for understanding how we perceive the world around us under various lighting conditions. The other options listed do not represent recognized types of photoreceptors in the eye; hence, they are not correct in this context.