Energy Flow
ATP & ADP
PHOTOSYNTHESIS EQUATION
PIGMENTS & LIGHT
Leaf Structure
100

This is the ultimate source of energy for almost all life on Earth.

What is the sun?

100

ATP has this many phosphate groups.

What is three?

100

Plants take in this gas from the air for photosynthesis.

What is carbon dioxide (CO₂)?

100

The main photosynthetic pigment found in chloroplasts.

What is chlorophyll?

100

The tiny opening where CO₂ enters and O₂ exits.

What is a stoma?

200

This process converts sunlight into chemical energy stored in glucose. 

What is photosynthesis?

200

Removing the third phosphate group from ATP releases this.

What is energy?

200

This is the sugar produced during photosynthesis.

What is glucose?

200

The color that chlorophyll reflects, causing leaves to appear this color.

What is green?

200

Cells that open and close stomata.

What are guard cells?

300

Energy flows in the order: Sunlight → Glucose → ____.

What is ATP?

300

This molecule is like a "dead battery" for the cell.

What is ADP?

300

Complete the equation: 6CO₂ + 6H₂O + sunlight → ______ + 6O₂

What is C₆H₁₂O₆?

300

These are substances that absorb light.

What are pigments?

300

This waxy layer on the leaf prevents water loss.

What is the cuticle?

400

Organisms that must eat food because they cannot make their own, such as animals and fungi.

What are heterotrophs?

400

Energy is stored in ATP in the bond between these two groups.

What are the last two phosphate groups?

400

This is the waste product released from photosynthesis.

What is oxygen (O₂)?

400

Chlorophyll absorbs all colors except this one.

What is green?

400

The primary photosynthesis layer of the leaf.

What is the palisade mesophyll?

500

All life on Earth depends on the flow of this through an ecosystem.

What is energy?

500

Adding a phosphate to ADP forms this molecule.

What is ATP?

500

This plant organ absorbs water used for photosynthesis.

What are the roots?

500

Chlorophyll-a and chlorophyll-b absorb these two wavelengths the best.

What are around 425 nm and 660 nm?

500

This vascular tissue carries glucose made in the leaf to the rest of the plant.

What is phloem?