Fall Final Review MHS Science

Front

What is productivity in an ecosystem?

Back

Productivity refers to the rate at which plants and other photosynthetic organisms produce organic compounds (like glucose) from carbon dioxide and water using sunlight.

Front

What is the primary purpose of photosynthesis?

Back

The primary purpose of photosynthesis is to use energy from sunlight to produce glucose, which serves as food for plants.

Front

Why is energy lost as you move up a food chain?

Back

Energy is lost as you move up a food chain because organisms are inefficient in converting energy; they use some energy for their own metabolic processes and do not pass all energy to the next trophic level.

Front

What is a producer in an ecosystem?

Back

A producer is an organism, typically a plant, that can make its own food through photosynthesis, forming the base of the food chain.

Front

What role do lysosomes play in a cell?

Back

Lysosomes act as the cell's 'trash collectors' or recyclers, breaking down waste materials and cellular debris.

Front

What is the role of glucose in living organisms?

Back

Glucose serves as a primary energy source for cells, providing the necessary fuel for cellular respiration.

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 a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a simple, linear pathway of energy flow, while a food web is a complex network of interconnected food chains.

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil and making them available for producers.