Plants!
- Created by: AOconnor
- Created on: 12-05-18 13:15
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- Plants
- Disease
- Detection
- Stunted growth
- Spots and discolouration
- Decay
- Growths
- Malformed stems/leaves
- Pests
- Identification
- Refer to manual/website
- Take infected plants to lab
- Use testing kits using monoclonal antibodies
- TMV and Rose Black Spot
- Nitrate deficiency causes stunted growth (nitrate ions needed for protein synthesis)
- Magnesium deficiency caused chlorosis (magnesium needed for chlorophyll)
- Defence
- Physical defence
- Cellulose cell walls
- Tough waxy cuticle
- Layers of dead cells around stem (bark)
- Chemical
- Antibacterial chemicals
- Poisons
- Mechanical
- Thorns and hairs
- Mimicry
- Physical defence
- Detection
- Photosynthesis
- Uses for glucose
- Respiration
- Converted into insoluble starch (storage)
- Produce fats and oils
- Produce cellulose
- Produce amino acids (protein synthesis)
- Callum Watling Got Obese!
- Factors
- Light intensity
- CO2
- Temperature
- If too hot, rate decreases due to enzymes becoming denatured
- Uses for glucose
- Structure
- Leaf
- waxy cuticle prevents avaporation
- Spongy mesophyll has air spaces to allow easy diffusion of gases
- Stomata allows gases to pass through
- Guard cells control opening/closing stomata to prevent loss of water and wilting
- Upper epidermis is transparent to allow light to pass through
- Cell
- Cell wall strengthens cell
- Vacuole stores cell sap
- Chloroplasts contain chlorophyll which absorbs sunlight
- Root Hair
- Large s.a for max intake of water and nitrates
- Lots of mitochondria for energy (for active transport
- large vacuole to keep cell shape
- Leaf
- Movement
- Water
- Osmosis into roots from soil (high to low)
- Up transpiration stream to leaf via xylem
- Xylem is hollow tube of dead cells that carries water and minerals
- Up transpiration stream to leaf via xylem
- Osmosis into roots from soil (high to low)
- Organic molecules (glucose and nutrients)
- Active transport (requires energy) into roots from soil (low to high)
- Translocation = movement of dissolved sugars around plant
- Travels via phloem
- Translocation = movement of dissolved sugars around plant
- Active transport (requires energy) into roots from soil (low to high)
- Water
- Disease
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