Unit 5- Energy and Life

Front

What is cellular respiration?

Back

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

Front

What is the primary source of energy for all organisms on Earth?

Back

The Sun is the primary source of energy for all organisms on Earth.

Front

How is energy conserved in cellular respiration?

Back

Energy is conserved by transforming chemical energy in glucose into ATP, rather than being lost.

Front

What role does photosynthesis play in the carbon cycle?

Back

Photosynthesis uses carbon dioxide, which is released during cellular respiration, thus connecting the two processes.

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food, typically through photosynthesis, such as plants.

Front

What is a pyramid of energy?

Back

A pyramid of energy illustrates the flow of energy through different trophic levels in an ecosystem.

Front

Which level of the energy pyramid contains the most energy?

Back

The bottom level (producers) contains the most energy.

Front

What happens to energy as it moves up the energy pyramid?

Back

As energy moves up the pyramid, it decreases due to energy loss at each trophic level, primarily as heat.

Front

What is the relationship between photosynthesis and cellular respiration?

Back

Photosynthesis produces glucose and oxygen, which are used in cellular respiration to produce energy.

Front

What is the least amount of energy received by an owl in an ecosystem?

Back

An owl receives the least amount of energy because it is at the top of the food chain.