Which of the Following Statements Regarding Rods and Cones Is

question 37

Multiple Choice

Which of the following statements regarding rods and cones is true?

• A)Rods are more sensitive to light than cones.
• B)Cones are responsible for night vision.
• C)Rods are found at the greatest density at the fovea, the retina's center of focus.
• D)Rods contain the visual pigment called photopsin.

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Definitions:

Presynaptic Terminal

The presynaptic terminal is the end point of a neuron where neurotransmitters are stored before being released across the synapse to signal the next neuron.

Seizures

Sudden, uncontrolled electrical disturbances in the brain that may cause changes in behavior, movements, feelings, and levels of consciousness.

GABA

Gamma-Aminobutyric Acid, a neurotransmitter in the brain that inhibits nerve transmission, helping to regulate neuronal excitability.

Voltage-gated Ion Channels

Channels that open or close in response to changes in membrane potential, allowing ions to pass through the membrane.