3. Plan cells and animal cells
Plant cell
Rigid cell wall
Cytoplasm
Chloroplasts
Nucleus
Animal cell
Membrane
Cytoplasm
Organelles
Nucleus
4. Unicellular microbes
Bacteria
• Protist Kingdom.
• Most are microscopic.
• Spherical or rod-shaped.
• Move in different ways, some with
flagella.
• Reproduce by division.
Amoebae
• Protist, algae, Fungi and Animal
Kingdoms.
• Many are microscopic.
• Move around by changing shape.
• Reproduce by dividision.
5. Classification of animals
ARTHROPODS
·Jointed legs and exoskeleton
·Oviparous
·Lungs or gills
MOLLUSCS
·Soft bodies
·They often have a shell
·Oviparous
·Lungs or gills
ANNELIDS
·Soft, segmented bodies
·Oviparous or asexual
reproduction (by buds)
ARTHROPODS
·Jointed legs and exoskeleton
·Oviparous
·Lungs or gills
MOLLUSCS
·Soft body
·Some have tentacles
·Asexual reproduction (by buds)
·Absorb oxygen through their skin
ECHINODERMS
·Spiky bodies
·Some have tentacles
·Oviparous
·Lungs or gills
6. Nutrition in plants
RAW SAP
ELABORATED SAP
Water and nutrients from the soil
The plant takes in carbon dioxide
and sunlight and converts raw sap
into elaborated sap.
This is called PHOTOSYNTHESIS.
The plant expels Oxygen and
water vapour.
Raw sap travels through the
stem to the leaves.
7. Reproduction in plants
SEED PLANTS
ANGIOSPERMS
GYMNOSPERMS
SEEDS IN FRUITSEEDS IN CONES
NON-SEED PLANTS
Produce spores
FERNS MOSSES
8. Food chains
A food chain involves organisms that have a trophic relationship to each other.
Plants are producers
Herbivores eat plants.
They are primary
consumers
Omnivores and
carnivores eat other
animals. They are
secondary
consumers.
Bacteria, fungi and worms are decomposers. They
transform plant and animals remains into nutrients
