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KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.

Photosynthetic organisms are producers.
Producers make their own source of chemical energy. Plants use photosynthesis and are producers. Photosynthesis captures energy from sunlight to make sugars.

Chlorophyll is a molecule that absorbs light energy.
chloroplast leaf cell leaf In plants, chlorophyll is found in organelles called chloroplasts.

Photosynthesis in plants occurs in chloroplasts.
Photosynthesis takes place in two parts of chloroplasts. grana (thylakoids) stroma chloroplast stroma grana (thylakoids)

The light-dependent reactions capture energy from sunlight.
take place in thylakoids water and sunlight are needed chlorophyll absorbs energy energy is transferred along thylakoid membrane then to light-independent reactions oxygen is released

The light-independent reactions make sugars.
take place in stroma needs carbon dioxide from atmosphere use energy to build a sugar in a cycle of chemical reactions

The equation for the overall process is:
6CO2 + 6H2O C6H12O6 + 6O2 C6H12O6 granum (stack of thylakoids) thylakoid sunlight 1 six-carbon sugar 6H2O 6CO2 6O2 chloroplast 1 2 4 3 energy stroma (fluid outside the thylakoids)

Which of the following statements best describes the process of photosynthesis?
Plants use oxygen to make simple sugars. Chlorophyll builds sugars in the thylakoid membrane. Light breaks down water molecules and releases carbon dioxide. Chloroplasts absorb sunlight and store chemical energy.

What is the term for an organism that makes its own source of chemical energy?
Decomposer Producer Chloroplast Protist

The main light-absorbing molecules found in plant leaves are called
Chloroplasts Thylakoids Chlorophyll Grana

The function of light-dependent reactions is to
Build sugars Capture and transfer energy Release carbon dioxide Form water molecules

The light-independent reactions of photosynthesis need
Carbon dioxide Oxygen Water Cellulose

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