Answer:
Chlorophyll "a"
Explanation:
The reaction centers of the photosystem have chlorophyll "a" molecules. The chlorophyll "a" that functions as a reaction center for the photosystem II has absorption maxima at 680 nm and therefore, it is called P680. The reaction center of photosystem I also have chlorophyll "a" molecules that have the absorption peak at 700 nm. The chlorophyll "a" molecules serving as reaction centers transfer the photoexcited electrons to a primary acceptor during the light-dependent phase of photosynthesis.
Answer:
Explanation:
1. a. Sunlight hitting the Earth's surface is the source of all energy in the pyramid.
b. 25,500 kcal is provided by this source to a square meter per year.
Greenhouse is due to excess of CO2 , Methane gas !! It has both benefits and demerits !!
Energy transfers from the producer to the consumer.
Explanation:
- An organism eats to get energy that is required by its tissue to carry out metabolic activities.
- Organisms in an ecosystem are related to each other by there feeding habits.
- The producers lie at the bottom of a food chain. They bear the ability to convert the solar energy into chemical energy within the cell.
- They are responsible to drive the flow of energy from the ultimate source into the food chain.
- When consumers feed on the producers the energy conserved in the tissue of producers get transferred to the consumer in this way the enery transfers from one trophic level to another.
