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Blood and Its Functions Quiz

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

What is the primary function of blood?

a)

Digestion

b)

Transportation

c)

Respiration

d)

Excretion.

2.

What is the normal pH range of blood?

a)

6.0-6.5

b)

7.0-7.5

c)

7.35-7.45

d)

8.0-8.5

3.

What percentage of blood is plasma?

a)

45%

b)

55 %

c)

60%

d)

70 %

4.

What protein in red blood cells binds to oxygen?

a)

Collagen

b)

Hemoglobin

c)

Albumin

d)

Fibrinogen

5.

What type of white blood cell is involved in the immune response?

a)

Erythrocytes

b)

Thrombocytes

c)

Leukocytes

d)

Plasma cells

6.

What role do platelets play in the blood?

a)

Transport oxygen

b)

Fight infections

c)

Aid in clotting

d)

Reulate pH

7.

Which of the following is NOT a function of blood?

a)

Nutrient transport

b)

Hormone production

c)

Waste removal

d)

Temperature regulation

8.

What is the viscosity of blood compared to water?

a)

Thinner

b)

Thicker

c)

The same

d)

Variable

9.

Which component of blood helps maintain osmotic pressure?

a)

White blood cells

b)

Plasma proteins

c)

Electrolytes

d)

Red blood cells

10.

What type of leukocyte is primarily involved in allergic reactions?

a)

Neutrophils

b)

Lymphocytes

c)

Eosinophils

d)

Monocytes

11.

What is the main function of plasma?

a)

Oxygen transport

b)

Nutrient transport and waste removal

c)

Immune response

d)

Blood clotting

12.

Which type of blood cell is formed from megakaryocytes?

a)

Red blood cells

b)

White blood cells

c)

Platelets

d)

Plasma cells

13.

What is the primary role of neutrophils?

a)

Antibody production

b)

Fighting bacterial infections

c)

Clotting

d)

Transporting oxygen

14.

What condition is characterized by low red blood cell count?

a)

Leukemia

b)

Anemia

c)

Hemophilia

d)

Thrombocytopenia

15.

Which type of blood vessel carries oxygenated blood away from the heart?

a)

Veins

b)

Capillaries

c)

Arteries

d)

Lymphatics

16.

What is the primary site of blood cell production in adults?

a)

Liver

b)

Spleen

c)

Bone marrow

d)

Thymus

17.

What is the average lifespan of a red blood cell?

a)

10 days

b)

365 days

c)

30 days

d)

120 days

18.

What triggers the production of erythropoietin?

a)

High oxygen levels

b)

Low oxygen levels

c)

High blood pressure

d)

Low blood pressure

19.

What is the term for the process of blood cell formation?

a)

Hemolysis

b)

Hemostasis

c)

Hematopoiesis

d)

Hemoglobinopathy

20.

Which blood type is considered the universal donor?

a)

A

b)

B

c)

AB

d)

O

21.

What is the main purpose of blood clotting?

a)

Immune defense

b)

Oxygen transport

c)

Preventing blood loss

d)

Nutrient absorption

22.

What does blood transport from the lungs to tissues?

a)

Carbon dioxide

b)

Oxygen

c)

Nutrients

d)

Hormones

23.

How does blood help regulate body temperature?

a)

By cooling the skin

b)

By distributing heat

c)

By storing heat

d)

By increasing metabolism

24.

Which component of blood is primarily responsible for transporting oxygen?

a)

Plasma

b)

White blood cells

c)

Red blood cells

d)

Platelets

25.

What happens to blood when it is exposed to air?

a)

It becomes thinner

b)

It clots

c)

It loses oxygen

d)

It becomes more viscous

26.

How does blood contribute to the immune system?

a)

By transport nutrients

b)

By producing hormones

c)

By carrying white blood cells

d)

By regulating temperature

27.

Which type of blood cell is responsible for the body's adaptive immunity?

a)

Neutrophils

b)

Eosinophils

c)

Lymphocytes

d)

Monocytes

28.

Which component of blood is primarily responsible for fluid balance?

a)

Red blood cells

b)

Plasma

c)

Platelets

d)

White blood cells

29.

What is the primary function of lymphocytes?

a)

Oxygen transport

b)

Immune defense

c)

Clotting

d)

Nutrient transport

30.

What is the role of album in in blood?

a)

Oxygen transport

b)

Maintaining osmotic pressure

c)

Clotting

d)

Immune response