Organisms (Form and function) mind map

Each branch is one subtopic. Read it out loud and try to explain every word.

Organisms (Form and function) mind map · IB Diploma Biology SL · clockitwithsci.com

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Organisms (Form and function)

Gas exchange
- Size and exchange
  - SA:V falls with size
  - longer diffusion distance
  - permeable, thin, moist, large
- Maintaining gradients
  - dense capillary networks
  - continuous blood flow
  - ventilation: air or water
- Alveolar lungs
  - branched bronchioles
  - surfactant
  - extensive capillary beds
  - high surface area
- Ventilation
  - diaphragm
  - intercostal muscles
  - abdominal muscles
  - ribs
- Lung volumes
  - tidal volume
  - vital capacity
  - inspiratory/expiratory reserves
- Leaves
  - cuticle, epidermis
  - guard cells, stomata
  - spongy mesophyll, air spaces
  - veins
- Transpiration
  - light, temperature
  - humidity, wind
  - stomatal density
Transport
- Capillaries
  - branching, narrow
  - thin walls
  - fenestrations
- Arteries and veins
  - artery: muscle, elastic tissue
  - vein: valves, flexible wall
  - wall vs lumen in micrographs
- Heart health
  - radial or carotid pulse
  - coronary occlusion
  - correlation is not causation
- Xylem
  - transpiration pull, tension
  - cohesion, capillary action
  - lignin, pits, no end walls
- Stem and root
  - stem: ring of bundles
  - root: central xylem star
  - epidermis, cortex