Topic 4 - Nutrient cycle

HideShow resource information
Ammonification
process in which decomposers break down nitrogenous compounds in ammonia or ammonium ions
1 of 17
Artificial fertilisers
manufactured fertiliser such as ammonium sulfate
2 of 17
Chemosynethesis
the synthesis of organic compunds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals , typically in the absence of sunlight
3 of 17
Deamination
The removal of amino group from an amino acid or other compound
4 of 17
Denitrifying bacteria
Bacterium that gets its energy from by converting nitrate to nitrogen gas
5 of 17
Eutrophication
Addition of nutrients to a body of water, often results in the growth and then death of algae ans the growth of large population of aerobic bacteria decreasing the oxygen conc in the water
6 of 17
Extracellular digestion
A process in which saprobionts feed by secreting enzymes through the cell membrane onto the food
7 of 17
Leaching
washing out of soil
8 of 17
Natural fertilisers
substance such as manure made from living material ans contains nutrients which can help plant growth
9 of 17
Nitrate
salt of nitric acid composed of ions - formula NO3-
10 of 17
Nitrate, phosphate and potassium (NPK)
the tree primary nutrients for healthy plant growth - NPK value of a crop is the ratio of nitrogen: phosphorus: potassium that it requires
11 of 17
Nitrification
conversion of ammonia to nitrIte and of nittrite to nitrAte
12 of 17
Nitrifying bacteria
Bacteria that convert ammonia to nirIte or nitrIte to nitrAte
13 of 17
Nitrogen fixation
Changing unreactive nitrogen gas N2 into a more reactive compound such as ammonia or nitrate for use by plants
14 of 17
Nitrogenous
Containing nitrogen in chemical combination
15 of 17
Saprobiotic digestion
digestion of protein to amino acids by decomposers - digestion involves hydrolysis catalysed by enzymes
16 of 17
Saprobiotic nutrition
feeding on an organic substrate by secreting enzymes outside he body and then absorbing he products of digestion
17 of 17

Other cards in this set

Card 2

Front

manufactured fertiliser such as ammonium sulfate

Back

Artificial fertilisers

Card 3

Front

the synthesis of organic compunds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals , typically in the absence of sunlight

Back

Preview of the back of card 3

Card 4

Front

The removal of amino group from an amino acid or other compound

Back

Preview of the back of card 4

Card 5

Front

Bacterium that gets its energy from by converting nitrate to nitrogen gas

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Biological molecules, organic chemistry and biochemistry resources »