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Download Photosynthesis Cloze Activity Directions: Use each of the terms
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Photosynthesis Cloze Activity Directions: Use each of the terms below just once to complete the passage. ATP synthase electrons photosynthesis Calvin Cycle electron transport chain protons chemiosmosis NADPH stoma chlorophyll a oxygen gas stroma chlorophyll b photosystem thylakoid ATP Paragraph One: _____________________ can be divided into two parts: The Light Reactions and the _____________________(light independent reactions). The light reaction begins with the absorption of light energy by __________________ which is assisted by another pigment ________________ found in the chloroplasts of plant cells. The _____________ in these pigments get excited and move through an _______________________________ where the final electron acceptor produces ___________. Also occurring in the ______________ membrane is __________________ and a process where water molecules are split to produce ______________, electrons, and _______________. The protons collect inside the thylakoid and exit to the _____________ through carrier proteins, an enzyme called __________________, which makes ___________. The electrons are sent to the _____________________ and become available to replace those that were used to make NADPH. The O2 is released by the plant through structures under the leaf called _______________. ADP Calvin cycle heterotrophs NADP+ roots amino acids carbohydrates leaves organic stems atmosphere carbon fixation lipids phosphate stomata ATP fruits NADPH stroma proton sun Paragraph Two: In the ________________ of chloroplasts, the NADPH and _____________ from the light reactions become reactants in ___________________. Carbon dioxide from the __________________ enters the leaf through tiny openings called _________________. In this process called ________________, CO2 joins with various carbon compounds that receive ________________ from __________ and a ______________ from _______________. After several turns of the cycle _______________ molecules are formed. The __________ and NADP+ are recycled and sent back to the light reactions to be used again. The Calvin Cycle can produce not just glucose, but also ______________, _____________, and other ________________________. Excess starches are stored by the plants in its ___________, ____________, ___________, and ______________. __________________ may come along and eat the plant, thus indirectly gaining energy from the ____________. Part Three: Write the simple chemical equation for photosynthesis: PHOTOSYNTHESIS can be divided into two parts: The Light Reactions and the CALVIN CYCLE (light independent reactions). The light reaction begins with the absorption of light energy by CHLOROPHYLL A which is assisted by another pigment CHLOROPHYLL B found in the chloroplasts of plant cells. The ELECTRONS in these pigments get excited and move through an ELECTRON TRANSPORT CHAIN where the final electron acceptor produces NADPH. Also occurring in the THYLAKOID membrane is CHEMIOSMOSIS and a process where water molecules are split to produce PROTONS, electrons, and OXYGEN GAS. The protons collect inside the thylakoid and exit to the STROMA through carrier proteins, an enzyme called ATP SYNTHASE, which makes ATP. The electrons are sent to the PHOTOSYSTEMSand become available to replace those that were used to make NADPH. The O2 is released by the plant through structures under the leaf called STOMA. In the STROMA of chloroplasts, the NADPHand ATP from the light reactions become reactants in the CALVIN CYCLE. Carbon dioxide from the ATMOSPHERE enters the leaf through tiny openings called STOMATA. In this process called CARBON FIXATION, CO2 joins with various carbon compounds that receive PHOSPHATES from ATP and a PROTON from NADPH. After several turns of the cycle ORGANIC molecules are formed. The ADP and NADP+ are recycled and sent back to the light reactions to be used again. The Calvin Cycle can produce not just glucose, but also AMINO ACIDS, LIPIDS, and other CARBOHYDRATES. Excess starches are stored by the plants in its ROOTS, FRUITS, STEMS, and LEAVES. HETEROTROPHS may come along and eat the plant, thus indirectly gaining energy from the SUN.
