Blood Quiz

What is the primary function of blood?

• To provide structural support to the body

• To transport substances from one place to another through blood vessels

• To generate electrical impulses for the nervous system

• To absorb nutrients from the digestive tract

Blood is classified as which type of tissue in the human body?

• Muscle tissue

• Connective tissue

• Epithelial tissue

• Nervous tissue

What are the two main components of blood?

• Red blood cells and white blood cells

• Plasma and platelets

• Formed elements and plasma

• Hemoglobin and antibodies

What percentage of blood is plasma when it is separated?

• 45 percent

• 55 percent

• 25 percent

• 75 percent

What is the hematocrit?

Which of the following is a characteristic of blood?

• It is lighter and thinner than water

• It has a pH that is strongly acidic

• It is a sticky, opaque fluid

• Its temperature is significantly lower than body temperature

What is the typical pH range of blood?

• Between 5.35 and 6.45

• Between 6.35 and 7.35

• Between 7.35 and 7.45

• Between 8.35 and 9.45

At what temperature is blood typically maintained?

• At 36°C or 96.8°F

• At 37°C or 98.6°F

• At 38°C or 100.4°F

• At 39°C or 102.2°F

What percentage of water is plasma composed of?

• 80 percent

• 90 percent

• 95 percent

• 75 percent

Which of the following is NOT a dissolved substance in plasma?

• Nutrients

• Salts (electrolytes)

• Plasma proteins

• Red blood cells (RBCs)