Photosynthesis review

The purpose of photosynthesis is to

• Make ATP for humans

• Use solar energy to create sugar molecules (glucose)

• Build proteins in plants

• Have fun

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In which organelle does photosynthesis occur?

• Mitochondria

• Lysosome

• Chloroplast

• Ribosome

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Photosynthesis captures energy and uses it to build a molecule of glucose. This makes it

• Absorb energy and is endothermic

• Release energy and is exothermic

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The image above is the chemical formula for what molecule

• Water

• Oxygen

• Carbon Dioxide

• Glucose

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What are the reactants of Photosynthesis

• Water and glucose

• Water and Carbon dioxide

• Water and Oxygen

• Glucose and Oxygen

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What are the products of photosynthesis

• Glucose and Oxygen

• Water and Oxygen

• Glucose and Water

• Water and carbon dioxide

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The two stages of photosynthesis are:

• Light dependent and light independent

• Stroma and thylakoid

• Krebs cycle and ETC

• Chlorophyll and Chloroplast

What happens in the light dependent stage

• CO2 enters and goes through a series of chemical equations to create one molecule of glucose.

• Sunlight hits chlorophyll causing H2O to split and move down the ETC. In the ETC ATP and NADPH are created. The oxygen from the H2O is released

• The light hits the stroma and causes CO2 to split and travel down the ETC where it creates ADP and NADP+

• The proton gradient gets created and sends hydrogen atoms to the extracellular space to later flow down ATP synthase.

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What from the light dependent stage travels to the light independent stage

• ADP, NADP+, and H+

• ADP, NADPH and CO2

• ATP, NADPH, and H+

• O2, NADH, and ADP

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What happens in the light independent reactions?

• H2O enters the thylakoid membrane and gets split to travel down the ETC creating energy to store in ATP and NADPH.

• In the thylakoid membrane the sunlight hits a chlorophyll molecule and sents CO2 down the ETC

• H2O enters the stroma and uses ADP and NADP+ to create a molecule of glucose from CO2 and H2O

• CO2 enters the stroma and a series of chemical reactions takes place to use the energy from ATP, NADPH, and the H molecules from H2O to create a molecule of glucose

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