4.1.2 Commercial applications of photosynthesis Flashcards
(6 cards)
1
Q
Horticulture
A
The science of cultivating plants for various purposes including food, flowers and ornamental plants
2
Q
Factors that can be completely controlled in a greenhouse (4p)
A
- Humidity
- Light intensity
- Water
- Minerals
3
Q
Factors that can be partially controlled in a greenhouse (2p)
A
- CO2 concentration
- Pests and diseases
4
Q
Polytunnel (2p)
A
- A transparent plastic sheet held in place by a frame
- used for growing plants
5
Q
Why do plants grow faster under a polytunnel? (2p)
A
- Insulates the plants so it’s warm
- Therefore the rate of photosynthesis is faster as enzyme controlled reactions happen at a faster rate
6
Q
Hydroponics
A
Growing plants in nutrient-rich water instead of soil
