McMartinski_
Badges: 0
Rep:
?
#1
Report Thread starter 5 years ago
#1
Got my GCSE's in May/June and I still can't remember the nitrogen cycle confidently. Any ways of trying to remember it?
0
reply
Konanabanana
Badges: 9
Rep:
?
#2
Report 5 years ago
#2
(Original post by McMartinski_)
Got my GCSE's in May/June and I still can't remember the nitrogen cycle confidently. Any ways of trying to remember it?
Most people find it hard because they don't know where to start, well it is a cycle so you can start anywhere. I always used to start with nitrogen in the air. This is the most abundant gas so makes it easy to start here.

Bacteria in the soil and plant roots are known as nitrogen fixing bacteria, they fixate nitrogen gas and turn it into something else. These bacteria are commonly known as Rhizobacteria. They turn nitrogen gas into ammonium which is kept in the soil in which plants absorb as a source of nutrients. If the plants did not absorb it then a new type of bacteria arrive, known as nitrifying bacteria which convert it into nitrates. Nitrates are also absorbed by plants. If these nitrates are not absorbed by plants then denitrifying bacteria convert it back into nitrogen gas. That is the first cycle. The seccond part is once the plants have this nitrogen in the form of ammonium or nitrates then primary consumers eat the plants and it gets transfered to them. Once the animals and plants die, decomposers break it all down into simple compounds and ammonium which then gets converted into nitrogen via nitrifying and denitrifying bacteria.


This is from the top of my head, ive not dont this in like almost 3 years but i just remembered this in 2 stages, stage 1 in without th death part stage 2 witht eh death. In reality there areno stages but i break it up to make it easier to understand and remember.
0
reply
McMartinski_
Badges: 0
Rep:
?
#3
Report Thread starter 5 years ago
#3
(Original post by Konanabanana)
Most people find it hard because they don't know where to start, well it is a cycle so you can start anywhere. I always used to start with nitrogen in the air. This is the most abundant gas so makes it easy to start here.

Bacteria in the soil and plant roots are known as nitrogen fixing bacteria, they fixate nitrogen gas and turn it into something else. These bacteria are commonly known as Rhizobacteria. They turn nitrogen gas into ammonium which is kept in the soil in which plants absorb as a source of nutrients. If the plants did not absorb it then a new type of bacteria arrive, known as nitrifying bacteria which convert it into nitrates. Nitrates are also absorbed by plants. If these nitrates are not absorbed by plants then denitrifying bacteria convert it back into nitrogen gas. That is the first cycle. The seccond part is once the plants have this nitrogen in the form of ammonium or nitrates then primary consumers eat the plants and it gets transfered to them. Once the animals and plants die, decomposers break it all down into simple compounds and ammonium which then gets converted into nitrogen via nitrifying and denitrifying bacteria.


This is from the top of my head, ive not dont this in like almost 3 years but i just remembered this in 2 stages, stage 1 in without th death part stage 2 witht eh death. In reality there areno stages but i break it up to make it easier to understand and remember.

thank you so much this is really helpful
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Have you experienced financial difficulties as a student due to Covid-19?

Yes, I have really struggled financially (44)
18.64%
I have experienced some financial difficulties (68)
28.81%
I haven't experienced any financial difficulties and things have stayed the same (88)
37.29%
I have had better financial opportunities as a result of the pandemic (30)
12.71%
I've had another experience (let us know in the thread!) (6)
2.54%

Watched Threads

View All