$$Hct = \frac{2.5}{5.0} \times 100$$

Question 1

Which of the following is NOT a primary function of blood as described in the study materials?

Accepted Answer

Producing energy for muscle contraction

Question 2

A blood sample is centrifuged and yields three layers. What is the correct order from bottom to top?

Accepted Answer

Erythrocytes, buffy coat, plasma

Question 3

Which plasma protein is most abundant and primarily responsible for maintaining osmotic pressure?

Accepted Answer

Albumin

Question 4

A patient has a hematocrit of 60%. What condition might this indicate?

Accepted Answer

Polycythemia

Question 5

Which of the following best describes the role of erythrocytes in the body?

Accepted Answer

Transport respiratory gases

Question 6

What is the correct formula for calculating hematocrit ($$Hct) if a $$blood sample contains 2.5 L of erythrocytes in a total volume of 5.0 L?

Accepted Answer

$$Hct = \frac{2.5}{5.0} 	imes 100$$

Question 7

Which of the following is a regulatory function of blood?

Accepted Answer

Maintaining normal pH using buffers

Question 8

Which component of blood is responsible for initiating clot formation?

Accepted Answer

Platelets

Question 9

A patient is found to have a deficiency in plasma proteins. Which of the following symptoms would most likely result?

Accepted Answer

Edema due to decreased osmotic pressure

Question 10

Which of the following statements about the buffy coat in a centrifuged blood sample is correct?

Accepted Answer

It contains both leukocytes and platelets

Question 11

Which of the following is a protective function of blood?

Accepted Answer

Carrying antibodies and complement proteins

Question 12

If a person has a hematocrit of 38%, which of the following is most likely true?

Accepted Answer

They may be experiencing anemia

Question 13

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

Accepted Answer

It has cellular and liquid components with an extracellular matrix

Question 14

Which of the following would most likely occur if blood did NOT contain plasma proteins?

Accepted Answer

Water would leave the bloodstream, causing tissue swelling

Question 15

Which of the following is true regarding the color of blood?

Accepted Answer

Blood is bright red when oxygen-rich and dark red when oxygen-poor

Question 16

Which of the following is the correct percentage of body weight made up by blood?

Accepted Answer

~8%

Question 17

Which of the following is a correct statement about the formed elements of blood?

Accepted Answer

They consist of erythrocytes, leukocytes, and platelets

Question 18

Which of the following is a function of albumin in blood plasma?

Accepted Answer

Acts as a blood buffer and maintains osmotic pressure

Question 19

Which of the following best describes the role of the 'alkaline reserve' in blood?

Accepted Answer

It maintains normal pH by providing bicarbonate ions

Question 20

Which of the following is true regarding the buffy coat in a centrifuged blood sample?

Accepted Answer

It contains leukocytes and platelets

Blood: Structure, Function, and Components (Chapter 17 Study Notes)

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