10 Questions
What is the primary function of the immune system?
To distinguish between self and foreign substances
Which of the following is NOT a type of immune response?
Homeostasis
What is the role of the spleen in the immune system?
To filter out foreign substances from the blood
What type of cells are responsible for killing invaders in the immune system?
Natural killer cells
What is the term for the collective and coordinated response to the introduction of foreign substances in an individual?
Immune response
What is the main difference between innate and adaptive immunity?
Innate immunity is rapid but non-specific, while adaptive immunity is slower but specific.
Which of the following is NOT a type of innate immune mechanism?
Clonal expansion
What is the primary function of lysozymes in the innate immune response?
To break down bacterial cell walls
What is the role of natural killer cells in the innate immune response?
To directly attack and kill infected cells
What is the key feature of adaptive immunity that is not present in innate immunity?
Specificity
Study Notes
The immune system consists of cells, tissues, and molecules that provide resistance to infections, with the role of defending against microbes, tumor cells, and maintaining homeostasis. It is composed of organs (e.g., tonsils, thymus, lymph nodes) and cells (e.g., T-lymphocytes, B-lymphocytes, natural killer lymphocytes) that work together to provide immunity. There are two types of immunity: innate immunity, which provides immediate defense, and adaptive immunity, which adapts to infections and is mediated by T- and B-lymphocytes.
This quiz covers the basics of the immune system, including the definition of immune system, immunology, immunity, and immune response. Test your understanding of these fundamental concepts!
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