Nitrosomonas europa is a species of bacteria that obtains its energy by oxidising ammonium ions to nitrite ions - VCE - SSCE Biology - Question 14 - 2007 - Paper 1
Question 14
Nitrosomonas europa is a species of bacteria that obtains its energy by oxidising ammonium ions to nitrite ions.
2NH₄⁺ + 3O₂ → 2NO₂⁻ + 4H⁺ + 2H₂O
ammonium ions + o... show full transcript
Worked Solution & Example Answer:Nitrosomonas europa is a species of bacteria that obtains its energy by oxidising ammonium ions to nitrite ions - VCE - SSCE Biology - Question 14 - 2007 - Paper 1
Step 1
A. the reaction is anaerobic.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This reaction occurs in the presence of oxygen, so it is not anaerobic. Therefore, option A is incorrect.
Step 2
B. the reaction is endergonic.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
An endergonic reaction requires energy input. The oxidation of ammonium ions generally releases energy, so it is not endergonic. Thus, option B is incorrect.
Step 3
C. no heat is produced in this reaction.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Though the reaction may not produce perceptible heat, biochemical reactions often result in heat release. Therefore, option C is also incorrect.
Step 4
D. ATP is produced as a result of this reaction.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This reaction is part of a metabolic pathway in Nitrosomonas europa that produces ATP, making option D the correct choice.
