Zusammenfassung der Ressource
3rds
Photosynthesis
- how a plant makes food
- light
- water
- carbon dioxide
- chlorophyll
- glucose
- turned into starch for storage
- turned into proteins by adding nitrogen to it
- cellulose for cell walls
- oxygen
- Experiments
- testing leaves for starch
- boil in water to burst the cells
- boil in ethanol to remove chlorophyll
- rinse in water to soften it
- add iodine solution
- blue/black = starch
- red/yellow = no starch
- plastic bag with sodium
hydroxide to remove
carbon dioxide
- measuring the rate
- pond weed - elodea
- measured how many
bubbles were produced in
one minute
- light intensity was changed - how far
away the light was
- tin foil mask to stop light
- variegated
leaf - green and white leaf
- leaf structure
- different types of cells
- veins - delivered minerals and water,
and took away sugars
- xylem for water
- phloem for food
- guard cells
- stomata
- gas exchange
- roots
- abosrb water
- support
- anchor
- absorb minerals
- nitrogen
- proteins
- phosphate
- cell membranes and DNA
- potassium
- proper growth
- magnesium
- chlorophyll