B8 Flashcards
What do all plant need for photosynthesis
Chloroplasts which contain chlorophyll
What is the light energy captured by chloroplasts used for
To convert carbon dioxide and water to glucose and oxygen
What kind of reaction is photosynthesis
Endothermic
What is word equation for photosythesis
Carbon dioxide + water —->glucose + oxygen
What is the balanced symbol equation for photosynthesis
6CO2+6H20—>C6H12O6 +6O2
What are leaf adaptations for photosynthesis
- they have big surface area
- leaves are thin
- contains chloroplast
- they have guard cell
What are algae adaptations for photosynthesis
- large surface area
- can absorb dissolved in water around them
What are the limiting factors of photosynthesis
- light
- temperature
- carbon dioxide concentration
How is temperature a limiting factor
As photosynthesis is controlled by enzymes and if it gets too high the enzymes become denatured
What is the light intensity and distance equation
1
Light intensity § ———-
Distance ^2
What is starch and what is its use
Starch is a complex sugar. It is used to stored as a energy store. It is insoluble in water. It is stored in cells on leaves and is used when it is dark
Starch have spaces storing starch such as…
Tubers and bulbs (potatoes and onions)
How do plants make amino acids for proteins
By combining nitrate ions and other mineral ions from the soil
What do plants that live in poor quality soil do
They attracts insects and use them to get nutrients
What are the uses of lipids in plants
- energy stores
- too make cell walls stronger
- they are used in seed to provide them with energy
