| A | B |
|---|
| autotroph | organisms that make their own food |
| heterotrophs | organisms that obtain energy form foods they consume |
| ATP | chemical that powers all of the cells activities |
| Van Helmont | devised experiment to find out if plants grew by taking material out of soil |
| Priestley | devised experiment in which he concluded that plant produced substance required for candle to burn |
| Jan Ingenhousz | showed that Priestley's experiment only occurred when the plant was exposed to light |
| CO2 | Chemical symbol for carbon dioxide |
| C6H12O6 | chemical symbol for glucose |
| H2O | chemical symbol for water |
| pigments | chemicals that can trap light energy |
| chlorophyll | plants principle pigment |
| accessory pigments | additional pigments found in plants that absorb energy in other portions of light spectrum |
| chloroplasts | cell organelle where photosynthesis takes place |
| thylakoids | saclike membranes found within chloroplasts that contain chloropphyll |
| grana | stacks of thylakoids are called ________. |
| photosystems | clusters of chlorophyll and other pigments and proteins found in the thylakloids that capture light energy |
| NADP+ | molecule that transfers excited electrons energy from chlorophyll molecule |
| NADPH | NADP+ is converted to this molecule to carry energy to other places in cell |
| light-dependent reactions | part of photosynthetic process that must take place in presence of light |
| calvin cycle | cycle in light-independent reaction where high-energy surgars are produced |
| stroma | where calvin cycle takes place in the chloroplast |
