Overview
Recognise different skeletal and supporting tissues. State the location and arrangement of skeletal and supporting tissues in animals. State the different supporting tissues (turgid parenchyma, collenchyma, xylem (wood) sclerenchyma) in plants, and the arrangement of these supporting tissues. State the functions of skeleton and supporting tissues in animals and plants and how these functions are performed. Construct a working model of a human arm and explain how it functions
What you'll learn
- Skeleton and supporting systems in animals:
- (I) Biological significance.
- (ii) Forms e.g. chitin, cartilages and bones.
- Types of skeleton:
- (I) Hydrostatic skeleton.
- (ii) Exo-skeleton.
- (iii) Endo-skeleton.
- Vertebrate skeletons:
- - The skull,
- - Sternum and ribs.
- - Limb girdles.
- - limbs.
- Bones of the vertebral column.
- Different types of supporting tissues in plants: - location and arrangement of structural components.
- Functions of skeleton in animals:
- (I) Protection
- (ii) Support
- (iii) Locomotion
- Functions of supporting tissues in plants:
- (I) Strength
- (ii) Rigidity
- (iii) Resistance. against the forces of wind and water
