(a) (i) Give a biological molecule that contains: 1. nitrogen 2. phosphorous (ii) Describe the role of microorganisms in producing nitrates from the remains of dead organims.

(i) 1. amino acid 2. DNA(ii) Decomposer microrganisms break down dead material into ammonia. Ammonia is then converted into nitrite and then oxidised to nitrate by nitrifying bacteria. The process is known as nitrification.

AS
Answered by Alice S. Biology tutor

7641 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Outline the circulation of blood and the physical changes of the heart during the cardiac cycle.


What are the different protein structures?


Describe the process of the photosynthesis' light dependent reaction.


What is the refractory period of a nerve action potential?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences