Question 1

Which of the following best describes the primary function of red blood cells (RBCs) in human blood?

Accepted Answer

To transport oxygen from the lungs to body tissues

Question 2

Hemoglobin is essential for oxygen transport in the blood. Which equation best represents the reversible binding of oxygen to hemoglobin?

Accepted Answer

$$\mathrm{Hb} + 4\mathrm{O}_2 \rightleftharpoons \mathrm{Hb}(\mathrm{O}_2)_4$$

Question 3

Which of the following is NOT a component transported by plasma?

Accepted Answer

Oxygen bound to hemoglobin

Question 4

A patient with a deficiency in lymphoid progenitor cells would most likely have reduced levels of which blood cell type?

Accepted Answer

T-lymphocytes

Question 5

Which of the following statements about blood is CORRECT?

Accepted Answer

Blood is a liquid connective tissue that transports vital substances.

Question 6

Which of the following best explains why red blood cells are specialized to carry some carbon dioxide?

Accepted Answer

They contain enzymes that convert CO$$_2 to $$bicarbonate ions.

Question 7

A blood smear shows an abnormally high number of eosinophils. This finding is most likely associated with which condition?

Accepted Answer

Parasitic infection or allergic reaction

Question 8

Which of the following is the correct sequence for the differentiation of myeloid progenitor cells?

Accepted Answer

Myeloid progenitor → Monocyte → Macrophage

Question 9

Which of the following best describes the role of plasma in homeostasis?

Accepted Answer

Plasma transports nutrients, hormones, waste products, and antibodies.

Question 10

A person with a genetic mutation that prevents the production of albumin would most likely experience which of the following symptoms?

Accepted Answer

Edema due to loss of osmotic pressure

Question 11

Which of the following is a function of white blood cells (WBCs)?

Accepted Answer

Defending the body against pathogens

Question 12

If a patient loses a significant amount of plasma but not red blood cells, which of the following is a likely consequence?

Accepted Answer

Impaired transport of hormones and waste products

Question 13

Which of the following best explains why blood is classified as a connective tissue?

Accepted Answer

It contains cells suspended in a liquid extracellular matrix.

Question 14

Which of the following is the most abundant component of plasma by weight?

Accepted Answer

Water

Question 15

A patient with a low hematocrit is most likely suffering from which condition?

Accepted Answer

Anemia

Question 16

Which of the following best describes the function of platelets?

Accepted Answer

Initiating blood clotting

Question 17

Which of the following is a correct statement about the composition of blood?

Accepted Answer

Blood is composed of approximately 55% plasma and 45% formed elements.

Question 18

Which of the following best explains the importance of hemoglobin in red blood cells?

Accepted Answer

Hemoglobin binds and transports oxygen efficiently due to its iron-containing heme groups.

Question 19

Which of the following is a function of plasma proteins?

Accepted Answer

Maintaining osmotic pressure and transporting substances

Question 20

A patient with a genetic disorder affecting globulin production would most likely have problems with which of the following?

Accepted Answer

Immune response

HA 5- Hematology (blood)

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