AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

TRANSFUSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Describe hematocrit.
A
the nonliving fluid matrix that makes up 55% of blood
B
red bone marrow where blood cells are formed
C
the WBCs in blood, roughly 1% of blood
D
the erythrocytes (RBCs) in the blood, roughly 45% of blood
Explanation: 

Detailed explanation-1: -Hematocrit results are reported as a percentage. The average hematocrit measurement for human beings is 45%, which means that the red cell volume contains 45 mL per 100 mL of blood.[3] According to the Cleveland clinic, the general normal ranges for hematocrit are[4]: Male: 41% to 50% Female: 36% to 44%

Detailed explanation-2: -These red blood cells, also called erythrocytes, are the most common blood cell type, accounting for 40–45% of the blood’s volume. They contain hemoglobin, which is a protein that carries oxygen throughout the body.

Detailed explanation-3: -Red Blood Cells (also called erythrocytes or RBCs) Known for their bright red color, red cells are the most abundant cell in the blood, accounting for about 40 to 45 percent of its volume.

Detailed explanation-4: -The components of blood. Red blood cells make up about 45% of the blood volume. White blood cells make up about one percent and platelets less than one percent. Plasma makes up the rest of the blood.

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