Botany

Influence of swelling on weight, volume, hardness and appearance for peas
Swelling pressure
Swelling movements
Germination's dependency on various factors
The influence of light on plant germination
Significance of cotyledons
Germination retarding substances
Growth zones for root and sprout
Starch breakdown during germination
Root growth
Root growth direction
Root hair formation
The force of roots
The dependency of growth on nutrient supply
Growth substances
The significance of water for plant-life
Organs for water absorption
Water conduction in a sprout
Plasmolysis and deplasmolyse
Water evaporating organs
Gap opening significance
Water demand with respect to leaf quantity and leaf size
Water consumption of hydrophytes and aridophytes
Evaporation protection
Guttation