Protein-Ligand Binding and Dissociation Constants Quiz

It helps prevent poisoning by CO generated from metabolism and our industrial-age environment.

It depends on molecular motions or 'breathing' in the protein structure.

Transient cavities allow oxygen to move in and out of the heme pocket.

<p>The distal His acts as a gate to control access to one major pocket near the heme iron.</p> Signup and view all the answers

<p>The pocket opens and closes through the rotation of the distal His residue on a nanosecond time scale.</p> Signup and view all the answers

<p>Hemoglobin transports oxygen in blood.</p> Signup and view all the answers

<p>Normal human erythrocytes are small, biconcave disks.</p> Signup and view all the answers

<p>Precursor stem cells for erythrocytes are called hemocytoblasts.</p> Signup and view all the answers

<p>Daughter cells produce large amounts of hemoglobin and then lose their organelles.</p> Signup and view all the answers

<p>Most of the oxygen carried by whole blood in animals is bound and transported by hemoglobin in erythrocytes.</p> Signup and view all the answers

<p>It helps prevent poisoning by the CO that is generated in large amounts by our industrial-age environment.</p> Signup and view all the answers

<p>It controls access to one major pocket near the heme iron.</p> Signup and view all the answers

<p>Transporting oxygen in the blood.</p> Signup and view all the answers

<p>To allow oxygen to move from the surrounding solution to the ligand-binding site.</p> Signup and view all the answers

<p>By the rotation of the distal His residue.</p> Signup and view all the answers

<p>They are lost.</p> Signup and view all the answers

<p>Small and biconcave disks.</p> Signup and view all the answers

<p>By hemoglobin in erythrocytes.</p> Signup and view all the answers

<p>It helps prevent poisoning by the CO that is generated in small amounts from metabolism and that is sometimes generated in larger amounts by our industrial-age environment.</p> Signup and view all the answers

<p>It depends on molecular motions, or 'breathing,' in the protein structure.</p> Signup and view all the answers