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Biology Module 2: Organisation of Living Things - Coggle Diagram
Biology Module 2: Organisation of Living Things
IQ1: Organisation of Cells
Colonial
Single celled organisms in a colony
Multicellular
many cells (>1)
Hierarchical Structure
Organelles
Cells
Tissues
Organs
System
Plant
meristematic
Dermal
Vascular
Ground
Animal
Epithelial
Nervous
Connective
Muscle
Cell specialisation
structure → function
Unicellular
one cell
Compare
Similarities
Genetic material
Cytoplasm
Ribosomes
Cell membrane
Differences
#
Size
Organisation
Bacteria
Cell differenctiation
Stem cells
Undifferentiated
Embryonic
Adult
IQ2: Nutrient and Gas Requirements
Autotroph
Dissect Plant
Roots
Stem
Leaves
Flower
Fruit
Root System
Shoot System
Microscopic Structures
Leaf Structure
#
Cuticle
Palisade
Spongy Mesophyll
Upper Epidermis
Xylem
Phloem
Stomata
Imaging Technologies
Plant Structure
MRI
PET
Tracing Products of Photosynthesis
Glucose & oxygen
Radioactive tracers
C-14
Gas exchange
Stomates
Transpiration
Heterotroph
Respiratory System
Mammals
Lungs
Alveoli
Capillary
Fish
Gills
Compare Similarities
Large Surface Area
Moist, thin surface
Close to a transport system (mammals & fish)
have a good conc. of required gas on one side than the other (conc. gradient)
Insects
Tracheoles
Digestive System
Elimination of solid waste
Physical Digestion
Mouth - Teeth
Oesophagus - Peristalsis
Chemical Digestion
Mouth - Saliva
Stomach - HCl
Absorption of Nutrients
Small Intestine
Water reabsorption - Large Intestine
compare
Similarities
Oxygen, Glucose, protein, water
Differences
Autotrophs require CO₂ for photosynthesis
Autotrophs make their own glucose
IQ3: Transport
Plants
Vascular
Phloem
Structure
Sieve Tube Cells
Companion Cells
Living
Function
Transport Glucose
Source - Sink (Translocation)
Leaf
To wherever needed
Xylem
Structure
Lignified Cell Wall
Lumen Cavity
Dead
Function
Transport H₂O
TCT theory
Transpiration
Cohesion & Adhesion
Animals
Closed
Transport Fluid is Blood
Remains in Vessels
Mammals
Blood Vessels
Arteries
Carry blood away from heart
Oxygenated
High pressure
Veins
Return Blood to heart
Deoxygenated
low pressure
Valves
Capillaries
One layer of cells thick
Thin Walls
Large Surface Area
For Diffusion
Open
Low Pressure
Open ended Vessles
Empty into sinuses
Transport fluid is haemolymph
Only exchange nutrients & waste
Changes in Composition of blood
Pass through organ
Small Intestine
Glucose Increases
Lungs
Oxygen Increases, Carbon Dioxide Decreases
Kidney
Urea Decreases
General
Oxygen Decreases, Carbon Dioxide Increases
