Immune Cells and Their Jobs
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Objective
I can describe the roles of different immune cells in fighting infection.
Part 1 of 4
Warm-up video
CrashCourse · 9:13Vetted channel
We don't generate video — this one is by CrashCourse on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The innate defense system is the body's first line of defense, which includes physical barriers like skin and mucous membranes.
- 2
Phagocytes, such as neutrophils and macrophages, are cells that ingest and destroy pathogens through a process called phagocytosis.
- 3
Natural killer cells target and kill infected or cancerous cells by inducing apoptosis, which is programmed cell death.
Part 3 of 4
Practice
5 questions
Describe the difference between the innate and adaptive immune systems in terms of their response time and specificity.
What is the primary function of phagocytes, and name two types of phagocytes discussed in the video.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe the role of macrophages, neutrophils, and natural killer cells in the innate immune system's response to an infection.”
Sample answer included in the free materials
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