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CARDIOVASCULAR SYSTEM: THE BLOOD

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What are the main substances transported by blood?

a)

Electrolytes, vitamins, enzymes

b)

Antibodies, glucose, cholesterol

c)

Oxygen, carbon dioxide, nutrients, hormones, and waste products.

d)

Water, minerals, proteins

2.

How does blood help regulate body temperature?

a)

Blood maintains temperature by storing heat in red blood cells.

b)

Blood regulates temperature by increasing heart rate only.

c)

Blood helps cool the body by absorbing sunlight.

d)

Blood regulates body temperature by adjusting blood flow to the skin and facilitating heat exchange.

3.

What role do white blood cells play in blood protection?

a)

White blood cells primarily transport oxygen throughout the body.

b)

White blood cells help in the digestion of food particles.

c)

White blood cells are responsible for clotting the blood.

d)

White blood cells protect the body by identifying and attacking pathogens.

4.

What is the normal temperature of blood in Celsius?

a)

39

b)

38

c)

37

d)

36

5.

What percentage of body weight does blood constitute?

a)

10-12%

b)

7-8%

c)

3-4%

d)

5-6%

6.

What are the two main components of blood?

a)

Plasma and formed elements

b)

Platelets and antibodies

c)

Oxygen and carbon dioxide

d)

Red blood cells and white blood cells

7.

What is the primary composition of blood plasma?

a)

Hormones and vitamins only

b)

Only water and electrolytes

c)

Red blood cells and platelets

d)

Water, proteins, electrolytes, nutrients, hormones, and waste products

8.

Name the three types of formed elements in blood.

a)

Red blood cells, white blood cells, platelets

b)

Hemoglobin, myoglobin, fibrin

c)

Plasma, lymph, serum

d)

Erythrocytes, leukocytes, thrombocytes

9.

What is hemopoiesis?

a)

The process of blood clotting.

b)

The formation of muscle tissue.

c)

The synthesis of hormones.

d)

Hemopoiesis is the production of blood cells.

10.

What is the pH range of blood?

a)

7.0 to 7.3

b)

7.35 to 7.45

c)

6.5 to 7.0

d)

7.5 to 8.0