Ecosystems and Cellular Processes

Front

What is the function of mitochondria in a cell?

Back

Mitochondria are known as the powerhouse of the cell, responsible for producing energy through cellular respiration.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process by which certain bacteria convert atmospheric nitrogen into a form that plants can use to create proteins.

Front

What is mutualism in an ecosystem?

Back

Mutualism is a symbiotic relationship where both species benefit, such as hummingbirds pollinating flowers while feeding on nectar.

Front

What are primary consumers?

Back

Primary consumers are organisms that eat producers (plants) to obtain energy, such as herbivores.

Front

How do pesticides affect ecosystems?

Back

Pesticides can accumulate in the food chain, leading to toxin buildup in primary consumers and harming the ecosystem.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is the difference between commensalism and parasitism?

Back

In commensalism, one species benefits while the other is neither helped nor harmed; in parasitism, one species benefits at the expense of the other.

Front

What is the energy transfer in a food chain?

Back

Energy decreases as it moves up the food chain, with producers having the most energy and top predators having the least.

Front

What is the significance of bacteria in nitrogen fixation?

Back

Bacteria play a crucial role in converting nitrogen gas from the atmosphere into ammonia, which plants can absorb and use.