Which of the Following Is True of the Oxygen Dissociation

question 6

Multiple Choice

Which of the following is true of the oxygen dissociation curve?

• A) The normal partial pressure of oxygen (PO₂) at which hemoglobin is 50% saturated is 20 mm Hg.
• B) A shift to the right or left in response to blood pH is called the Bohr effect.
• C) A shift to the left results in lower oxygen affinity.
• D) A shift to the right results in less effective delivery of oxygen to tissue.

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Definitions:

Nucleus

The nucleus is a membrane-bound organelle found in eukaryotic cells that contains most of the cell's genetic material.

Nucleosome

A structural unit of chromatin composed of a segment of DNA wound around a core of histone proteins, contributing to DNA packaging within the nucleus.

mRNA Synthesis

The process of creating messenger RNA (mRNA), which serves as a template for protein synthesis in cells, from a DNA template.

Protein Synthesis

The process by which cells build proteins based on the instructions encoded in DNA and carried out by RNA.