The Concentrations of Ions Are Very Different Inside and Outside

question 83

Multiple Choice

The concentrations of ions are very different inside and outside a nerve cell due to which of the following?

• A)osmosis
• B)diffusion
• C)sodium-potassium pumps
• D)symporters and antiporters
• E)temperature

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Definitions:

Rods

Photoreceptor cells in the retina of the eye that are sensitive to low levels of light and are primarily responsible for night vision.

Cones

Photoreceptor cells in the retina of the eye that function best in relatively bright light and enable color vision.

Visual Information

Data received and processed about the surrounding environment through the sense of sight, contributing to perception and awareness.

Optic Nerve

The optic nerve is a crucial part of the eye and the visual system, responsible for transmitting visual information from the retina to the brain.