Which of the Following Is Not True of Hemoglobin

question 5

Multiple Choice

Which of the following is not true of hemoglobin?

• A)It makes up about 1/3 of a red blood cell.
• B)Each hemoglobin molecule consists of 4 protein subunits.
• C)Oxyhemoglobin is bright red, and deoxyhemoglobin is dark red.
• D)Each hemoglobin molecule can bind to up to 20 oxygen molecules at a time.
• E)All of these are true of hemoglobin.

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Definitions:

Neurons

Nerve cells that transmit information throughout the body and brain, serving as the building blocks of the nervous system.

Reticular Formation

A structure in the brainstem that plays a crucial role in arousal and attention and that screens sensory messages entering the brain.

Cerebellum

A part of the brain located at the back of the skull, primarily responsible for coordinating voluntary movements and maintaining balance and posture.

Medulla

The part of the brainstem that controls heartbeat, blood pressure, breathing, coughing, and swallowing.