Plant nutrition
- Photosynthesis
- Carbon dioxide + water → glucose + oxygen
- Light energy
- Chlorophyll in chloroplasts
- Balanced equation Supplement
- 6CO₂ + 6H₂O
- C₆H₁₂O₆ + 6O₂
- Uses of carbohydrate
- Starch store
- Cellulose cell walls
- Respiration
- Sucrose in phloem
- Nectar
- Mineral ions
- Nitrate: amino acids
- Magnesium: chlorophyll
- Starch test
- Destarch
- Boil, ethanol, iodine
- Variegated, foil, soda lime
- Limiting factors Supplement
- Light intensity
- Carbon dioxide
- Temperature
- Rate investigations
- Lamp distance
- Hydrogencarbonate
- Water bath
- Hydrogencarbonate indicator
- Yellow: high CO₂
- Red: air
- Purple: low CO₂
- Carbon dioxide + water → glucose + oxygen
- Leaf structure
- Large and thin
- More light
- Short diffusion path
- Palisade mesophyll
- Many chloroplasts
- Near top
- Spongy mesophyll
- Air spaces
- CO₂ diffuses
- Stomata and guard cells
- Gas exchange
- Open and close
- Vascular bundle
- Xylem: water
- Phloem: sucrose
- Cuticle and epidermis
- Waxy
- Transparent
- Large and thin