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Biology Topic 5 - Coggle Diagram
Biology Topic 5
LIGHT DEPENDENT STAGE
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The electrons promoted from photosystem I fall down a series of electron carriers releasing energy which is used to reduce NADP to NADPH and H+
As the electrons fall down a series of electron carriers, they release energy which is used to make ATP from ADP and Pi
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SUCCESSION
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Soft wood, trees and bushes
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Pioneer Phase
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These are only species that can cope with the extremes of temperature and lack of soil, water and nutrients
Succession Continues
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As conditions improve, seeds from larger plants appear
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Dominant Species
The one that exerts an overriding influence over the rest of the plant, microbe and animal species
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ENERGY FLOW
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ENERGY ENTERING THE TROPHIC LEVEL= energy lost in respiration + energy lost in faeces + energy lost in urine + energy in new biomass
CLIMATE CHANGE
GLOBAL WARMING
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Some infrared is absorbed by greenhouse gases, warming the troposphere
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Air pollutants collect in atmosphere, trapping the sun's heat and cause planet to heat up
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DENDROCHRONOLOGY
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Each year adds a layer of wood to trunk and branches, creating rings
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DATING EVIDENCE
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Pollen can date back 20,000 years
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Ice cores looks at the ratio of Oxygen isotopes and can date back 100,000 years
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ABIOTIC FACTORS
Solar Energy Input
Affected by latitude, cloud cover
Has an effect on photosynthesis, germination or reproduction etc
Climate
Rainfall, wind or temperature etc
Topography
Altitude, slope or drainage etc
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Edaphic Factors
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pH, mineral salt availability or texture etc.
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Catastrophes
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Earthquakes, flood, volcanoes or fires etc
LIGHT INDEPENDENT STAGE
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This is catalysed by RuBP carboxylase, the most common enzyme in the World.
The 6C compound is unstable and immediately breaks down in to two molecules of a 3C compound called GP.
This GP is reduced, hydrogen added, to form a 3C compound
called GALP.
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BIOTIC FACTORS
Competition
For resources eg. food, light or space etc
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Grazing, Predation and Parasitism
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