Scheme of work for second term ss 1 Biology
- EXCRETION
- Definition
- Structures of excretion in living organisms
- Waste products of metabolism
- Forms in which waste products are excreted
- TISSUES AND SUPPORTING SYSTEMS
- Definition of skeleton
- Biological significance of skeleton
- Forms of skeleton (chitin, cartilage, bones, hydrostatic)
- Types of skeleton: exoskeleton and endoskeleton
- COMPONENTS OF THE MAMMALIAN SKELETON
- Axial skeleton: The skulls, vertebral column, Ribs
- Appendicular skeleton: Pectoral girdle, pelvic girdle, pentadactyl limbs
- JOINTS
- Types of Joints
- Structure of joints
- Functions of joints
- Mechanism of joint movement
- Functions of the skeleton
- Supporting tissues in plants: Types, structure/features and functions of plants supporting tissues
- ALIMENTARY CANAL/DIGESTIVE SYSTEM
- Alimentary tract of invertebrates: planeria, earthworm, grasshopper
- Alimentary tract of vertebrate: Birds, Rabbits,
- Similarities and differences in the alimentary canals of different animals.
- Digestive system and digestion in man.
- PRACTICALS ON DIGESTION AND SKELETAL SYSTEM
- Dissection of Rabbit / Rat/Fowl
- FEEDING HABITS
- Categories and mechanism (Filter and fluid feeding, piercing, sucking etc)
- Modification in organisms to reflect feeding habit
- FEEDING IN AMOEBA, HYDRA AND MAN
- Teeth: Types, structures and functions
- Dentition in herbivores, carnivores and omnivores.
- TRANSPORT SYSTEM
- Need for transportation
- Materials for transportation e.g. food, oxygen, wastes,
- Media of transportation (cytoplasm, lymph, blood etc)
- Composition and functions of blood and lymph
- CIRCULATORY SYSTEM IN MAMMALS
- Structure of the mammalian heart, arteries, veins and capillaries
- Types and mechanisms of circulation
- Open and closed circulation
- Single and double circulation
- MECHANISM OF TRANSPORT IN HIGHER PLANTS
- Absorption and transport in water and mineral salts
- Transportation
- Translocation
- REVISION AND EXAMINATION