Multiple Choice
Which molecule is required for the light-dependent reactions in photosynthesis to occur?
3. Acids and Bases
Organic Chemistry Reactions
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In the context of organic chemistry reactions, what is the role of decomposers in the nitrogen cycle?
A
Decomposers fix atmospheric nitrogen into nitrates.
B
Decomposers break down organic matter, releasing nitrogen back into the soil.
C
Decomposers synthesize amino acids from nitrogen compounds.
D
Decomposers convert nitrogen gas into ammonia.
Verified step by step guidance1
Understand the role of decomposers in the nitrogen cycle: Decomposers are organisms, such as bacteria and fungi, that break down dead organic matter, releasing nutrients back into the environment.
Recognize that decomposers do not fix atmospheric nitrogen into nitrates. This process is typically carried out by nitrogen-fixing bacteria, not decomposers.
Identify that decomposers do not synthesize amino acids from nitrogen compounds. Instead, they break down complex organic molecules, releasing simpler compounds, including nitrogen, into the soil.
Clarify that decomposers do not convert nitrogen gas into ammonia. This conversion is part of the nitrogen fixation process, primarily performed by certain bacteria.
Conclude that the primary role of decomposers in the nitrogen cycle is to break down organic matter, releasing nitrogen back into the soil, which can then be used by plants and other organisms.
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