A blood test used to determine the amount of protein in red blood cells that carries oxygen isSelect one:a.hemoglobin.b.prothrombin time.c.hematocrit.d.coagulation time.

The blood test used to measure the volume of erythrocytes isSelect one:a.hemoglobin.b.hematocrit.c.platelet count.d.homocysteine.

Most of the oxygen in the blood is:Question 21Answera.Dissolved in the blood plasmab.Bound to the haem portion of haemoglobinc.Bound to plasma proteinsd.Bound to the globin portion of haemoglobine.Converted to bicarbonate

When your hematocrit is measured, you have a measurement of the proportion of the blood volume that consists ofMultiple choice question.red blood cellsironplateletshemoglobin

In humans, red blood cells contain hemoglobin, which is an oxygen-binding protein. Hemoglobin helps provide oxygen to the body’s tissues. Each molecule of hemoglobin is made up of four subunits. The human genome encodes multiple variations of the hemoglobin subunit, including the alpha, beta, and gamma chains. The specific subunits that make up the dominant form of hemoglobin in a person’s body are determined by the person’s age and genetic background.The hemoglobin that is present in a fetus, or fetal hemoglobin, has a different functional profile than the hemoglobin present after birth, which is called adult hemoglobin. This difference can be seen in Figure 1, which shows how strongly each type of hemoglobin binds to oxygen.The x axis is labeled Oxygen partial pressure with increments increasing by 40 and marked at zero, 40, 80, and 120. The y axis is labeled percent saturation with markings at zero, 50, and 100. There are 2 lines labeled on the graph. A solid line is labeled fetal hemoglobin, and a dotted line labeled adult hemoglobin. Both lines begin at 0,0. The fetal hemoglobin rises sharply from 0,0 and peaks at 40, 100. The fetal hemoglobin line then flattens out and remains at 100 percent saturation across the x axis. The adult hemoglobin line is shifted to the right. It begins at 0,0 and rises to reach a peak at 80, 100. The adult hemoglobin line then flattens out and remains at 100 percent saturation across the x axis.Figure 1. Oxygen dissociation curves for fetal and adult hemoglobin. The curve for fetal hemoglobin is shifted to the left compared to the curve for adult hemoglobin, indicating that fetal hemoglobin has a higher affinity for oxygen.Both adult and fetal hemoglobin contain alpha chain subunits. According to the information provided, which of the following diagrams is the most likely representation of fetal and adult hemoglobin?Images of 3 subunits of hemoglobin. One image is colored red and labeled alpha chain, one image is colored gray and labeled beta chain, and the third image is colored orange and labeled gamma chain.Choose 1 answer:Choose 1 answer:(Choice A)   A(Choice B)   B(Choice C)   C(Choice D)   D

A test done to determine the time it takes for a blood clot to form is calledSelect one:a.a complete blood count.b.prothrombin time.c.coagulation time.d.sestamibi stress testing.