AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

BLOOD GROUPS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which blood component makes up approximately 55% of your blood?
A
Plasma (water, proteins, other dissolved nutrients/solutes)
B
Buffy coat (white blood cells/leukocytes)
C
Red blood cells (erythrocytes)
D
None of the above
Explanation: 

Detailed explanation-1: -The light yellow colored liquid on the top is the plasma, which accounts for about 55 percent of the blood volume and red blood cells is called the hematocrit, or packed cell volume (PCV).

Detailed explanation-2: -Plasma makes up 55% of your blood’s total volume. Red blood cells follow at 44% of your blood’s volume, and a combination of white blood cells and platelets fill the remaining 1%.

Detailed explanation-3: -Blood is made up of about 55% blood plasma and about 45% different types of blood cells. Blood plasma is a light yellow, slightly cloudy liquid. Over 90% of blood plasma is water, while less than 10% consists of dissolved substances, mostly proteins.

Detailed explanation-4: -Plasma contains about 90 percent water, with 10 percent being made up of ions, proteins, dissolved gases, nutrient molecules, and wastes. The proteins in plasma include the antibody proteins, coagulation factors, and the proteins albumin and fibrinogen which maintain serum osmotic pressure.

There is 1 question to complete.