Puzzle – Photosynthesis


Fill in the blanks with the correct words from the bank at the bottom of the page.


All organisms use __________ to carry out their life functions. Some organisms obtain this energy from __________. The process by which this energy transfer takes place is called _______________. Photosynthesis involves a  _________ pathway in which the __________ of one reaction is(are) consumed in the __________ reaction.  __________ are organisms that carry on photosynthesis and includes  __________ and other organisms containing the __________ pigment __________. Autotrophs use ______________ and water to make __________ and the simple sugar __________. The pigment chlorophyll absorbs __________ energy from the sun during the light __________.  __________ pigments also in the __________ absorb other __________ of light that chlorophyll does not absorb. These accessory __________ are responsible for other colors we see in plants such as _______, orange, and __________. Chloroplasts are surrounded by a __________ membrane. Inside chloroplasts is a system of membranes arranged as stacks of __________ sacs called __________. Each sac in the stack is called a __________. The thylakoids are surrounded by a solution called the _________. The _______ reactions of photosynthesis take place in the stroma. Most chloroplasts are found in the _________ of plants. The __________ of a leaf contains openings called __________ where __________ such as oxygen and carbon dioxide enter and leave. These openings or stomata are __________ during the hottest times of the day by cells called __________ cells.


      Word Bank:

sunlight   autotrophs carbon dioxide
biochemical chlorophyll light
photosynthesis next wavelengths
energy plants glucose
yellow accessory stroma
plastids pigments reactions
leaves oxygen dark
stomata underside gases
closed red thylakoids
flattened guard double
product granum green






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