Innate Immune Response Identification
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Which immune response is considered innate immunity?
○ Memory T-cell activation
○ Antibody production
○ Phagocytosis by neutrophils
○ Antigen-specific response
Animated Video Solution
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Step by Step Written Solution
In this biology video, we are going to identify which of the provided options is considered a part of the innate immune system.
Identifying Innate Immunity
First, let's establish the two main branches of the immune system. We have innate immunity and adaptive immunity.
| Immune System | Characteristics |
|---|---|
| Innate | Non-specific, rapid, present from birth |
| Adaptive | Specific, memory, develops over time |
Innate immunity is our body's first line of defense. It includes physical barriers like skin, as well as general cellular responses that don't depend on recognizing a specific pathogen.
Innate Immunity Features
1. Immediate response
2. Non-specific (attacks all invaders)
3. No immunological memory
Adaptive immunity, on the other hand, involves specialized cells like T-cells and B-cells which learn to recognize specific invaders.
Adaptive Immunity Features
1. Delayed response
2. Highly specific to antigens
3. Creates long-term memory
Now let's evaluate the options. Option one is Memory T-cell activation. Memory is a hallmark of adaptive immunity, not innate, so we can rule this out.
Evaluating Options
1. Memory T-cell activation (Adaptive)
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