B1.4

Descrição

How it occurs, limiting factors
Abbie  Gray
FlashCards por Abbie Gray , atualizado more than 1 year ago
Abbie  Gray
Criado por Abbie Gray mais de 4 anos atrás
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Resumo de Recurso

Questão Responda
B1.4 Respiration Equations
The two main stages -light energy splits water into Oxygen has and hydrogen ions -carbon dioxide combines with hydrogen to create glucose Light is absorbed by pigment called chlorophyll. This is in the chloroplasts where photosynthesis happens CO2 enters through the stomata Water enters throug the roots and come through the Xylem.
Wash products -oxygen is formed -some is used for the plants respiration -the rest is released and used for animals and some microorganisms. Ways to measure photosynthesis -amount of oxygen produced -carbon dioxide uptake -carbohydrate production
Factors effecting photosynthesis- light intensity Without enough light, a plant cannot photosynthesize very quickly. -increased light-increased rate of photosynthesis.
Limiting factors- carbon dioxide -it is one of the reactants (along with water) -increasing the concentration will increase the rate until there is another limiting factor. Again, at some point, a factor may become limiting.
Limiting factors- temperature -the reaction that combines water and carbon dioxide is controlled by enzymes. -at low temperatures, the rate of photosynthesis is limited by collisions. High temperatures cause the enzyme to denature.

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