Inputs and Outputs
Photosynthesis
Cellular Respiration
Connecting the Processes
Energy Basics
100

This gas is taken in by plants to build sugars during photosynthesis.

What is carbon dioxide?

100

This organelle carries out photosynthesis.

What is the chloroplast?

100

This is the energy currency of the cell produced during cellular respiration.

What is ATP?

100

Photosynthesis stores energy in this molecule that is also a reactant for cellular respiration.

What is glucose?

100

This molecule is the cell’s main usable energy currency. You must say the full name.

What is Adenosine Triphosphate?

200

This substance is released as a waste product during the light-dependent reactions.

What is oxygen?

200

This pigment absorbs light energy most effectively in plants.

What is chlorophyll?

200

This stage of cellular respiration occurs in the cytoplasm and does not require oxygen.

What is glycolysis?

200

Cellular respiration releases energy from this molecule, which is also a product of photosynthesis.

What is glucose?

200

Organisms that make their own food using light energy are called this.

What are autotrophs, producers, or photoautotrophs?
300

These two substances are the main products of cellular respiration.

What are carbon dioxide and water?

300

These reactions capture light energy and release oxygen.

What are the light-dependent reactions?

300

This organelle is the main site of aerobic respiration in eukaryotic cells.

What is the mitochondrion?

300

This product of cellular respiration can be reused in photosynthesis.

What is carbon dioxide or water?

300

Organisms that obtain energy by eating other organisms are called this.

What are consumers or heterotrophs?

400

These three inputs are required for photosynthesis to occur.

What are carbon dioxide, water, and light?

400

These reactions use carbon dioxide to build sugars and occur in the stroma of the chloroplast.

What are the light-independent reactions?

400

This gas is required for aerobic respiration to release large amounts of ATP.

What is oxygen?

400

These two processes form a cycle of matter in ecosystems.

What are photosynthesis and cellular respiration?

400

This is the law of the thermodynamics that state that energy can be converted from one form to another, but it cannot be created nor destroyed.

What is the first law of thermodynamics?

500

This pair of molecules is produced in photosynthesis and then used in cellular respiration.

What are glucose and oxygen?

500

If carbon dioxide levels are very low, this part of photosynthesis is most directly limited.

What are the light-independent reactions?

500

This process allows cells to continue releasing small amounts of energy when oxygen is unavailable.

What is fermentation?

500

This statement best describes how energy moves between the cellular respiration and photosynthesis.

What is that energy enters as light and leaves as heat (energy flows, matter cycles)?

500

This law of thermodynamics states that energy cannot be converted without the loss of usable energy.

What is the second law of thermodynamics?

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