Tuesday, October 27, 2009

Week 8 - Botany 1: Intro to Botany Class (part b)


Time in: 9am
Time out: 12am

Plant Processes



Seeds swell when dampened which breaks its dormant state. Roots come out and create root hairs which is the primary source for the uptake of water.

2 basic hormones a plant has are auxins and gibberellins.

Auxins are produced in the apical meristem. It controls lengthening of the stem and also inhibits lateral bud growth. Apical dominance can be controlled by removing the tip

Giberellins control internode elongation, dormancy, flowering and other processes.

Photosynthesis is the process by which plants capture the energy of the sun and convert it to chemical energy. This process generally happens in leaves.

6CO2 + 6H2O + energy = C6H12O6 + 6O2
(Carbon Dioxide + water + sun = sucrose + oxygen )





Respiration is the process by which cells release stored energy for uses.

C6H12O6 + 6O2 = 6CO2 + 6H2O + energy
(stored food + oxygen = water vapor + stored energy)


Transpiration is the process of movement of water through the roots, stems and leaves.




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