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Chapter 4 - Biology

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What do cells use for energy?
ATP
What is ATP?
An energy transfer molecule
What is the relationship between ATP and ADP?
ATP, a high power molecule, converts to low-power ADP to continue the process of glycolysis
What is the ATP to ADP Cycle?
ATP (high energy) loses phosphate (energy released), creating ADP (low energy). Then, the ADP gains phosphate (energy gained), turning back into ATP. The cycle continues.
What are producers?
Organisms that produce their own chemical energy
What is the function of photosynthesis?
Captures light energy to make sugars for chemical energy storage
What is chlorophyll's role in photosynthesis?
To absorb energy in invisible light
What two parts of the chloroplast does photosynthesis occur?
The thylakoid and grana
What is the difference between light-dependent reactions and light-independent reactions?
Light-dependent requires light, and they absorb and transfer energy. Light-independent uses energy from light-dependent reactions.
What are the products and reactants of photosynthesis?
Reactants: Energy from sunlight, H2O, and CO2
Products: O2 and Glucose (6-Carbon Sugar)
What light-independent reaction occurs in photosynthesis?
The Calvin Cycle
What is the primary function of light-dependent reactions?
to capture and transfer sunlight energy
What is cellular respiration?
a process in which cells harvest the energy stored in food