Energy and Matter in Ecosystems Flashcard

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process by which nitrogen gas from the atmosphere is converted into ammonia or related compounds in soil, making nitrogen available for plants.

Front

What is the main purpose of cellular respiration?

Back

The main purpose of cellular respiration is to release energy stored in glucose, which is used by cells to perform various functions.

Front

How does increased carbon dioxide affect photosynthesis?

Back

Increased carbon dioxide levels can enhance the rate of photosynthesis, potentially leading to more plant growth.

Front

What role does water play in photosynthesis?

Back

Water provides the hydrogen needed to form glucose during photosynthesis.

Front

What is a byproduct of cellular respiration?

Back

Carbon dioxide is a byproduct of cellular respiration.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

Front

What is the water cycle?

Back

The water cycle is the continuous process by which water evaporates from the Earth's surface, condenses in the atmosphere, and precipitates back to the surface.

Front

Explain the importance of the nitrogen cycle in ecosystems.

Back

The nitrogen cycle is crucial for ecosystems as it recycles nitrogen, which is essential for the growth of plants and the overall health of the ecosystem.

Front

What is the role of decomposers in the nitrogen cycle?

Back

Decomposers break down organic matter, returning nitrogen to the soil in a form that plants can use.

Front

What is the relationship between photosynthesis and cellular respiration?

Back

Photosynthesis converts carbon dioxide and water into glucose and oxygen, while cellular respiration uses glucose and oxygen to produce energy, carbon dioxide, and water.