Chemistry of Life and Photosynthesis Review

Some living things, such as plants and algae, transfer energy from sunlight to ____________ molecules.

• ATP

• photosynthesis

• glucose

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The process of transferring solar energy to stored chemical energy is called

• ATP

• photosynthesis

• glucose

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Almost all living things transfer energy from sugar molecules like glucose to another molecule called _______ which provides the energy for cell processes

• ATP

• photosynthesis

• glucose

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SELECT ALL CORRECT ANSWERS: Which of the following results from producers performing photosynthesis?

• oxygen is produced

• carbon dioxide is transferred back to the atmosphere

• energy is transferred from sunlight to to consumers

• carbon is cycled through the biosphere

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NGSS.HS-LS1-5

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In plant cells, light energy is absorbed by the pigment __________ found in the membranes of thylakoids, which are pancake shaped structures found inside chloroplasts.

• ATP

• chlorophyll

• electrons

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The plant cell organelle in which photosynthesis occurs is the ________________

• chloroplast

• nucleus

• thylakoid

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The light energy enters the chloroplast and excites __________ which are used to make NADPH

• electrons

• protons

• ATP

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NADPH and energy from the light dependent reactions is used to make __________________ which are then used to make sugars for stored energy

• thylakoids

• chloroplasts

• ATP

• electrons

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How do the two photosystems work together to captures energy from sunlight?

• Photosystem I captures energy from sugars, which energizes electrons. The elections are passed along to photosystem II, which absorbs more energy and adds it to the electrons.

• Photosystem II takes energy from ATP, which energizes electrons. The electrons are passed along to photosystem I, which produces ATP.

• Photosystem II absorbs energy from sunlight, which energizes electrons. The electrons are passed along to photosystem I, which absorbs more energy and adds it to the electrons.

• Photosystem I harnesses energy from carbon dioxide, which energizes electrons. The electrons are then passed to photosystem II, which generates water.

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NGSS.HS-LS1-5

Based on the diagram, in the light dependent reactions, H2O and light energy are inputs and _________ is an output (comes out)

• CO2

• O2

• H2O

• glucose/sugar

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NGSS.HS-LS1-5