Which of the Following Statements About the Functioning of a Rod

question 8

Multiple Choice

Which of the following statements about the functioning of a rod cell is false?

• A) Rhodopsin is located in the stack of disks that is farthest from the light source.
• B) A rod cell is a modified neuron.
• C) The resting potential of a rod cell in the dark is less negative than a typical neuron.
• D) The membrane potential of a rod cell exposed to light becomes more positive.
• E) The plasma membrane of a rod cell is fairly permeable to Na⁺ ions.

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Definitions:

Dialysis

Removal of the products of urine from the blood by passage of the solutes through a membrane.

Cystitis

An inflammation of the bladder, often caused by a bacterial infection, leading to symptoms such as frequent urination and pain.

Nephrotic Syndrome

Term applied to renal disease of whatever cause characterized by massive edema, proteinuria, and usually elevation of serum cholesterol and lipids.