Transport in Mammals Quiz Review

In the Bohr effect, what cause the curve shift to the right?

• decreases haemoglobin affinity for oxygen.

• increased concentration of carbon dioxide

• low pH

• all correct

The graph shows the pressure changes in different parts of the heart. Which option shows the correct answer?

• red line = left ventricle

• green dash line = aorta

• green blue line = left atrium

• all correct

Which stataments describe ventricular systole?

• aortic pressure increase

• aortic pressure decrease

• semilunar valve close

• atrioventricular valve open

The following statements are correct about the Bohr effect, EXCEPT.....

• low partial pressure of oxygen

• the affinity of haemoglobin for oxygen increase

• high partial pressure of carbon dioxide

• the affinity of haemoglobin for oxygen decreases

Which vessel is aorta?

• A

• B

• C

• D

The pressure during ventricular systole would be approximately around 13 to 16 kPa. Which features that enable aorta to withstand high pressure?

• collagen fibre and smooth muscle

• smooth muscle and elastic fibre

• collagen fibre and endothelium

• collagen fibre and elactic fibre

Carbon monoxide binds to the heme group where oxygen molecules normally bind. Where does carbon dioxide bind on hemoglobin to form carbaminohemoglobin?

• same in the heme group

• amine group

• carboxyl group

• C terminal

Name the stage in the cardiac cycle in the figure.

• ventricular systole

• atrial systole

• ventricular diastole

• all correct

Name the stage in the cardiac cycle in the figure.

• ventricular systole

• atrial systole

• ventricular distole

• all correct

Describe conditions in atrial systole.

• the atrioventricular valves are open

• the atrioventricular valves are close

• the blood is flowing from the ventricles to the arteries

• the blood is flowing from the atria into the ventricles