List the three major categories of formed elements
Which is least numerous?
Which comprise(s) the buffy coat in a hematocrit tube?

Serum is:

(a) The same as blood plasma

(b) Plasma minus the formed elements

(c) Plasma minus the proteins

(d) Plasma minus fibrinogen

(e) Plasma minus the electrolytes

A hemoglobin molecule is composed of:

(a) Two protein chains

(b) Three protein chains

(c) Four protein chains and nothing else

(d) Four protein chains and four heme groups

(e) Four heme groups but no protein

The normal pH of the blood is about:

a. 8.4

b. 7.8

c. 7.4

d. 4.7

What five major functions are performed by blood?

More than one choice may apply. Plasma without the clotting proteins is called

a. Serum

b. Whole blood

c. Fibrin

d. Tissue factor

Name the three major types of plasma proteins and identify their functions.

Albumin

a. is a blood buffer.

b. helps maintain blood's osmotic pressure.

c. distributes body heat.

d. transports certain molecules.

If you had a high hematocrit, would you expect your hemoglobin determination to be low or high? Why?