Biol/Env 101 Lecture 20: Decomposition and Nitrogen

These flashcards cover essential concepts from the lecture on decomposition and nitrogen, helping students reinforce their understanding of the nitrogen cycle, decomposition processes, and related biochemical reactions.

What are the five main forms of nitrogen?

N2 (Molecular nitrogen), N2O (Nitrous oxide), NO3- (Nitrate), NH4+ (Ammonium), and protein.

What is the role of nitrogen-fixing bacteria?

Nitrogen-fixing bacteria convert atmospheric nitrogen into forms usable by plants, such as ammonia.

What happens during decomposition?

Decomposing bacteria break down proteins and other large molecules into smaller compounds.

What are detritivores?

Detritivores are organisms that feed on dead organic matter, contributing to decomposition.

What is the primary product of the citric acid cycle?

NADH and FADH2, which are used in the electron transport chain for ATP production.

How does burning cow feces relate to decomposition?

Both burning cow feces and decomposition release energy and nutrients back into the environment.

What is produced during photosynthesis?

Oxygen and glucose are produced from carbon dioxide and water using sunlight energy.

What are the reactants in the equation of photosynthesis?

Carbon dioxide (CO2), water (H2O), and sunlight energy.

What are amino acids?

Amino acids are the building blocks of proteins, consisting of an amino group, a carboxyl group, and an R group.

What is the chemical process of making coal?

Coal is formed from the accumulation and compaction of dead plant matter in swampy environments over millions of years.