Biology SL
Biology SL
4
Chapters
553
Notes
Theme A - Unity & Diversity
Theme A - Unity & Diversity
Theme B - Form & Function
Theme B - Form & Function
Theme C - Interaction &  Interdependence
Theme C - Interaction & Interdependence
Theme D - Continuity & Change
Theme D - Continuity & Change
IB Resources
Theme C - Interaction &  Interdependence
Biology SL
Biology SL

Theme C - Interaction & Interdependence

Unlocking Lymphocytes: Guardians of Immunity

Word Count Emoji
443 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 15th Oct 2024

Table of content

Lymphocytes - A Quick Intro

  • What are they? 🤔

    • Cells in the adaptive immune system, the body's sophisticated defense team.
    • Roughly 1/4th (25%) of our white blood cells.
  • What do they look like? 🧐

    • Picture a cell with a big, round nucleus (like the yolk of a sunny side up egg!)
    • Just a tiny bit of cytoplasm around the nucleus.
  • Where do they hang out? 🏠

    • Mostly in the blood, but also in the lymphatic system.
    • Fun Fact! They're called 'lymphocytes' because of their presence in the lymphatic system.

The Lymphatic System - Nature's Drainage System

  • What is it? 🤔
    • A series of vessels that help drain extra fluid from our body tissues.
  • Special Locations: Lymph Nodes 📍
    • Think of them as rest stops along the lymphatic highway.
    • They’re swollen structures along lymph vessels.
    • Super-popular hangout spot for lymphocytes!

Antibodies - Lymphocytes’ Super Tool 🛠

  • What are they? 🤔
    • Large proteins made by lymphocytes.
    • Their main goal: Destroy the baddie pathogens!
  • How do they work? 🕵️‍♂️
    • Two main parts
      • Hypervariable region: Like a lock-picking set, it recognizes and binds to specific molecules on a pathogen.
      • Another region: Assists the body in combat. How? Two ways
        • Flags down phagocytes by making the pathogen stand out, like a neon sign.
        • Acts as a bouncer, preventing viruses from entering host cells.

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IB Resources
Theme C - Interaction &  Interdependence
Biology SL
Biology SL

Theme C - Interaction & Interdependence

Unlocking Lymphocytes: Guardians of Immunity

Word Count Emoji
443 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 15th Oct 2024

Table of content

Lymphocytes - A Quick Intro

  • What are they? 🤔

    • Cells in the adaptive immune system, the body's sophisticated defense team.
    • Roughly 1/4th (25%) of our white blood cells.
  • What do they look like? 🧐

    • Picture a cell with a big, round nucleus (like the yolk of a sunny side up egg!)
    • Just a tiny bit of cytoplasm around the nucleus.
  • Where do they hang out? 🏠

    • Mostly in the blood, but also in the lymphatic system.
    • Fun Fact! They're called 'lymphocytes' because of their presence in the lymphatic system.

The Lymphatic System - Nature's Drainage System

  • What is it? 🤔
    • A series of vessels that help drain extra fluid from our body tissues.
  • Special Locations: Lymph Nodes 📍
    • Think of them as rest stops along the lymphatic highway.
    • They’re swollen structures along lymph vessels.
    • Super-popular hangout spot for lymphocytes!

Antibodies - Lymphocytes’ Super Tool 🛠

  • What are they? 🤔
    • Large proteins made by lymphocytes.
    • Their main goal: Destroy the baddie pathogens!
  • How do they work? 🕵️‍♂️
    • Two main parts
      • Hypervariable region: Like a lock-picking set, it recognizes and binds to specific molecules on a pathogen.
      • Another region: Assists the body in combat. How? Two ways
        • Flags down phagocytes by making the pathogen stand out, like a neon sign.
        • Acts as a bouncer, preventing viruses from entering host cells.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Biology SL. Subscribe now and get closer to that 45 🌟