Question 1

Which of the following best describes the function of plasma in vascular connective tissue (blood)?

Accepted Answer

It transports nutrients, hormones, proteins, and wastes throughout the body.

Question 2

A blood sample is observed under a microscope. Which formed element would appear as anucleate, biconcave cells?

Accepted Answer

Erythrocytes

Question 3

During a blood clotting event, which component of blood becomes visible as fibers?

Accepted Answer

Fibrin

Question 4

Which statement correctly distinguishes serum from plasma?

Accepted Answer

Serum is the liquid portion of blood after clotting, while plasma is before clotting.

Question 5

A patient has a deficiency in thrombocytes. Which physiological process would be most directly affected?

Accepted Answer

Hemostasis and blood clot formation

Question 6

Which of the following is NOT a function of leukocytes?

Accepted Answer

Transporting respiratory gases

Question 7

A blood smear shows numerous tiny purple dots. What are these most likely to be?

Accepted Answer

Thrombocytes (platelets)

Question 8

Which of the following best explains why erythrocytes are anucleate?

Accepted Answer

To maximize space for hemoglobin and enhance gas transport efficiency

Question 9

If a patient’s blood sample contains abnormally high numbers of nucleated cells, which formed element is most likely increased?

Accepted Answer

Leukocytes

Question 10

Which of the following correctly matches the formed element with its primary function?

Accepted Answer

Erythrocytes: Carry $$O_2$$ and $$CO_2$$

Question 11

A patient is diagnosed with a disorder that prevents the formation of a platelet plug. Which blood component is most likely deficient?

Accepted Answer

Thrombocytes

Question 12

Which of the following is a correct sequence of events during blood clot formation?

Accepted Answer

Platelet plug formation, activation of clotting factors, visible fibers (fibrin) appear

Question 13

Which of the following would you expect to find in the plasma but NOT in the serum?

Accepted Answer

Clotting factors (such as fibrinogen)

Question 14

A blood sample is analyzed for its ability to transport $$O_2$$ and $$CO_2. $$Which component is primarily responsible for this function?

Accepted Answer

Erythrocytes

Question 15

Which of the following is TRUE regarding the appearance of blood under a microscope?

Accepted Answer

Thrombocytes appear as tiny purple dots.

Question 16

A patient with a compromised immune system is most likely to have a deficiency in which blood component?

Accepted Answer

Leukocytes

Question 17

Which of the following is a correct description of the three main formed elements in blood?

Accepted Answer

Erythrocytes: anucleate, biconcave; Leukocytes: nucleated; Thrombocytes: cell fragments

Question 18

Which of the following best explains why fibers are only visible in blood during clot formation?

Accepted Answer

Fibrinogen is converted to fibrin, forming visible fibers during clotting.

Question 19

A patient’s blood test shows a low level of plasma proteins. Which of the following functions would be most affected?

Accepted Answer

Transport of hormones and antibodies

Question 20

Which of the following is NOT a formed element of blood?

Accepted Answer

Plasma

Histology: Vascular Connective Tissue (Blood)

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