Lesson 5 ·Class 9 · Tissues : Plant and Animal Tissues · Sort Lab
Epithelial Tissue
Covering and lining the body.
Sort each description into the type of epithelium it describes.
Sorted 0/8
All items sorted — check each bin.
Free play — sort every item into the bin it belongs in; each correct drop tells you why. Switch to when you're ready to test yourself.
Name follows shape: flat, cube, column. Ciliated is defined by what it carries, not its shape.
What this lesson covers
Challenges to clear
- Fill the Ciliated bin correctly.
- Sort every description.
- Fill the Squamous box — the flattest epithelium, built for diffusion.
The task
Sort each description into the type of epithelium it describes.
What this lesson covers
- Squamous — Flat, tile-like: Extremely thin flat cells, ideal for diffusion (Thinness is the whole point — substances cross quickly.); Lines the alveoli and blood capillaries (Gas exchange needs the shortest possible path.)
- Cuboidal — Cube-shaped: Cells as tall as they are wide (A compact shape suited to secretion and absorption.); Lines kidney tubules and gland ducts (Where fluid is secreted or reabsorbed.)
- Columnar — Tall pillars: Tall, narrow cells packed side by side (Height gives room for secretory machinery.); Lines the stomach and intestine, often with goblet cells (Secretes mucus and absorbs digested food.)
- Ciliated — Bearing cilia: Bears hair-like cilia that beat in waves (The beating moves material along the surface.); Lines the trachea and sweeps mucus and dust upward (This is the airway's cleaning system — and smoking paralyses it.)
Hint
Name follows shape: flat, cube, column. Ciliated is defined by what it carries, not its shape.