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ATP & Coupled Reactions

100

1. This molecule is known as the “energy currency” of the cell, composed of adenine, ribose, and three phosphate groups.
   
   

Answer: What is ATP (adenosine triphosphate)?

200

1. Clue: Adding this molecule back to ADP re-forms ATP during cellular processes.
   
   

Answer: What is an inorganic phosphate (Pi)?

300

The type of reaction where ATP is broken down to ADP and Pi, releasing energy—used to drive cellular work.

Answer: What is ATP hydrolysis?

400

1. Coupled reactions pair this kind of reaction—one that releases energy—with one that requires energy, enabling complex life processes.
   
   

Answer: What are exergonic and endergonic reactions (or "energy‑releasing and energy‑requiring reactions")?

500

1. This cellular “cycle” involves ATP being used, converted to ADP, and then regenerated—ensuring continuous energy supply.
   
   

Answer: What is the ATP cycle?

“ The Green Scene”

100

This pigment gives plants their green color.

 

What is chlorophyll?

200

1. The main organelle where chlorophyll is found.

   
   

 

1. What is the chloroplast?

   
   

300

This process depends on chlorophyll absorbing light.

1. 
   

What is photosynthesis?

400

The most light is absorbed by these two colors.

 

What are blue and red?

500

This structure stacks chlorophyll in membranes to increase light capture.

What are thylakoids (or grana)

“"Coupled Up Reactions"”

100

A reaction that releases energy is called this.

What is exergonic?

200

The term for reactions that need energy input.

What is endergonic?

300

This type of reaction pairing helps cells do work.

What are coupled reactions?

400

ATP is used in cells by transferring this to another molecule.

 

What is a phosphate group?

500

The energy from ATP is often used to power this type of cellular work (e.g., building molecules).

  What is biosynthesis (anabolism)?

"Pigments with a Purpose"

100

These pigments absorb light wavelengths that chlorophyll can't.

 

What are accessory pigments?

200

The yellow-orange accessory pigments.

what are carotenoids?

300

These pigments help plants avoid damage from excessive light.

 

What are photoprotective pigments?

400

These pigments give red to purple color in some plants.

What are anthocyanins?

500

Pigments help do this in the light-dependent reactions.

What is absorb light energy?

"Photosyn-THESIS or Nah?”

100

The overall process of turning light energy into chemical energy.

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What is photosynthesis?

200

This gas is needed for the process to occur.

  

What is carbon dioxide?

300

ATP and NADPH are made during this phase.

 

What is the light-dependent reaction?

400

This phase of photosynthesis uses ATP and NADPH to build glucose.

  

What is the Calvin cycle (light-independent reaction)?

500

ATP made in photosynthesis powers this final stage.

What is carbon fixation (or sugar synthesis)?