Ecology unit 5

Steps in photosynthesis cycle (3)

Reservoirs of Carbon (2)

Significance of Carbon cycle globally (3)

Long term carbon cycles (2)

Silicate cycle (4)

How do plants accelerate mineral weathering?

Effect of warm temperatures on plants?

Coalification cycle

Role of microbes in carbon cycle

What does decomposed organic matter by microbes become

Major components of plant residues (5)

Starch digestion

Cellulose & Hemicellulose structure and digestion

Lignin structure and digestion

Brown Rot and soft rot

White rot

Protein digestion

Lipid digestion

Physical Protection of Organic matter in soil

Chemical protection of organic matter - Surface area

Chemical protection of organic matter - Chemical bonding

Physical role of organic matter

Chemical role of Organic matter

Biological role of organic matter

Major reservoirs of Nitrogen (3)

Inorganic vs organic nitrogen

Nitrogen transformations in soil (8)

Fixation

Haber Bosch synthesis

Biological fixation of Nitrogen

Immobilisation of N

Mineralisation

Function of urea in soils

Activity of NH4+ in soil (5)

Nitrification

Ammonia volitilisation

Nitrate Leaching

Denitrification

Nitrification Inhibitors

Differences between Phosphorous and other cycles

Phosphorous cycle

Contamination sources in phosphorous cycle

Transformations of P

Adsorption

Mobility of P in soil

Mycorrhizae and P uptake

Plant mycorrhizal relationship in good N and P concentrations

Benefits of mycorrhizal infection

How do mycorrhizal fungi modify root environment?

Ectomycorrhiza

Endomycorrhiza

Difference between Sulfur and Nitrogen

Hierarchy of energy in sulfur compounds

Organic sulfur

Primary source of sulfur to atmosphere

Elemental sulfur

Phases of sulfur cycle

Processes of sulfur cycle (4)

Assimilatory reduction

Dissimilatory reduction

Oxidation

Pyrite

Restoration of sulfur contaminated sites

Mineralisation of S

Acid rain formation

What is Bioremediation

Types of enzymes involved in bioremediation

Classes of enzymes involved in

Xenobiotics

Key features of bio-remediating microbes

Microbes in the Bioremediation of organic pollutants

Common pollution events

Optimal conditions for organic pollution degradation

Anaerobic degradation of PAHs and Halogenated compounds

Fungi and bioremediation of hydrocarbons

Methanotrophs and bioremediation

Processes that microbes use to degrade pollutants (4)

Mineralisation

Co-metabolism

Polymerisation

Accumulation

Mechanisms of In Site remediation (4)

Biostimulation

Bioaugmentation

Bioventing

Biosparging

Ex situ bioremediation pathways (3)

Land farming

Turned Windrows

Forced vented piles

Selenium decontamination

Phytoremediation