1. Plant Processes

2. Types of Tissue Dermal tissue – protective outer layer
Vascular tissue – transport water and nutrients
Ground tissue – store sugars (potato) and supports the plant

3. Growth Meristems – where new plant cells are made
As the roots and stem grow taller, more cells are made
Found in tips of stems and roots (apical meristems)
At first, they are unspecialized (no special function)
Then they develop into the different types of tissue

4. Growth of Stems
Primary growth – elongation of the new cells made by apical meristems
Plant gets taller
Secondary growth – increase in thickness of stems and roots

5. Photosynthesis Light energy  chemical energy
Occurs in the chloroplast found in the leaves
CO H2O Sunlight --- C6H12O O H2O
Carbon dioxide + water + sunlight  glucose (sugar) + oxygen + water

6. Cellular Respiration
Breaks down glucose into usable energy for the plant
C6H12O O2  CO H2O + energy
glucose (sugar) + oxygen  Carbon dioxide + water + energy

7. Transpiration Transpiration – loss of water from leaves
Exits through the stomata
Water lost through transpiration is replaced by water absorbed by the roots and into the xylem

8. Guard cells – surround the stomata and control their opening and closing
A lot of water creates pressure that opens the guard cells
Lets water out and carbon dioxide in
If there is not enough water, the pressure will decrease and close the stomata