Decompiston Flashcards
What is decomposition?
The process by which dead organic matter is broken down into simpler organic or inorganic matter.
True or False: Decomposers are organisms that break down dead material.
True
Name two types of decomposers.
Bacteria and fungi.
What role do decomposers play in the ecosystem?
They recycle nutrients back into the soil.
Fill in the blank: Decomposers help in the __________ of nutrients.
recycling
What are detritivores?
Organisms that consume dead organic material, such as earthworms and woodlice.
Multiple Choice: Which of the following is NOT a decomposer? A) Fungi B) Bacteria C) Grass
C) Grass
How do decomposers obtain energy?
By breaking down dead organisms and organic waste.
What is the importance of moisture in decomposition?
Moisture helps facilitate the breakdown of organic materials.
True or False: Decomposition occurs faster in warm conditions.
True
What is composting?
A controlled process of decomposition that transforms organic waste into nutrient-rich soil.
Fill in the blank: __________ is a process that can be sped up by adding oxygen.
Decomposition
What are the end products of decomposition?
Nutrients, carbon dioxide, and water.
Multiple Choice: Which factor does NOT affect the rate of decomposition? A) Temperature B) Soil type C) Color of the material
C) Color of the material
What is the role of earthworms in decomposition?
They help break down organic matter and aerate the soil.
True or False: Decomposition is a part of the carbon cycle.
True
What is the significance of nitrogen-fixing bacteria in decomposition?
They convert atmospheric nitrogen into a form usable by plants.
Fill in the blank: Decomposers also help in __________ organic compounds.
mineralizing
What is anaerobic decomposition?
Decomposition that occurs in the absence of oxygen.
Multiple Choice: Which gas is commonly produced during anaerobic decomposition? A) Oxygen B) Methane C) Nitrogen
B) Methane
What environmental conditions favor decomposition?
Warmth, moisture, and aerobic conditions.
True or False: All decomposers are microorganisms.
False
What is the role of fungi in decomposition?
They break down complex organic materials like lignin and cellulose.
Fill in the blank: __________ is the process of breaking down dead matter to release energy and nutrients.
Decomposition
