Question

Which one of the following cells is involved in the defence mechanism of the body?

• A. Lymphocytes
• B. Neutrophils
• C. Macrophages
• D. All of these

Answer 1

Answer: (D)

All of these

A defence mechanism is the ability of the body to develop an immune system against specific pathogens and toxins. Lymphocytes attack and destroy specific invading organisms or toxins. Macrophages are important and are often referred to as antigen presenting cell. Neutrophils form an innate part of the immune system.

So, the correct option is 'All of these'.