I/GCSE Biology - Nutrient cycle

In this post, we'll talk about the topic regarding nutrient cycle in I/GCSE Biology. Let's get started! 😆

1. CARBON is a vital element for living things.
2. It is used in all organic molecules, including sugars, proteins and amino acids.
3. Carbon is recycled through the environment do that it is available for life processes.
4. This can be seen in the CARBON CYCLE:
5. In I/GCSE Biology, you have to study the following three equations!

It's commonly asked in the exam in I/GCSE Biology!

Nitrogen is recycled through the environment in the process of:

• Nitrogen fixation (making nitrogen in the air) to form nitrogen compounds including nitrates
• Conversion of nitrogen compounds to protein plants and animals
• Transfer of nitrogen compounds through food chains
• Excretion, death and decay of plants and animals resulting in release of nitrates into the soil
• Uptake of nitrates by plants
• Denitrification – this is where, in the absence of oxygen, denitrifying bacteria converts’ nitrates in dead plants and animal remains back into nitrogen gas. This completes the cycle, releasing nitrogen back into the atmosphere.

And we're done with this topic! Well Done!

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Drafted by Alyssa (Biology)

References:

1. "Carbon cycle". Photo from the internet.
2. "combustion equation", https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5ac0a2a074211.jpg
3. "cellular respiration", https://cdn.britannica.com/02/151102-050-B0D2021D/process-glycolysis-cellular-respiration-carbon-dioxide-water.jpg
4. "Photosynthesis", https://gosciencegirls.com/wp-content/uploads/2021/05/PHOTOSYNTHESIS.jpg
5. "How the Nitrogen Cycle Works", https://cdn.britannica.com/77/54477-050-B52A4BA9/nitrogen-cycle.jpg
6. "What is the Carbon Cycle?", https://cdn1.byjus.com/wp-content/uploads/2017/10/carbon-cycle-2-1.png