객관식
Which of the following best describes the primary function of T cells in the immune system?
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41. Immune System
Immune System
객관식
Which type of white blood cell is primarily responsible for protecting against pathogens, but does NOT play a direct role in blood clotting?
A
Neutrophils
B
Platelets
C
Erythrocytes
D
Basophils
검증된 단계별 안내1
Step 1: Understand the role of each cell type listed in the options. Neutrophils are a type of white blood cell that primarily protects the body against pathogens by engulfing and destroying them through phagocytosis.
Step 2: Recognize that platelets are not white blood cells. They are cell fragments that play a direct role in blood clotting by forming a plug at the site of injury and releasing clotting factors.
Step 3: Note that erythrocytes (red blood cells) are responsible for transporting oxygen and carbon dioxide in the blood and do not play a role in immune defense or blood clotting.
Step 4: Understand that basophils are white blood cells involved in allergic responses and inflammation. They release histamine and other chemicals but are not primarily responsible for protecting against pathogens.
Step 5: Based on the above clarifications, identify that neutrophils are the correct answer as they are the white blood cells primarily responsible for protecting against pathogens without playing a direct role in blood clotting.
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