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14 Cards in this Set
- Front
- Back
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What is the balanced chemical equation and word equation for photosynthesis? |
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What are the basic happenings in photosynthesis? |
Carbon dioxide and water are taken in by the plants. The plants absorb light energy and convert it into a usable form of energy; ATP. This energy is used to fix carbon dioxide into sugar molecules (glucose). This sugar is then converted into starch and stored for use by the plants and by animals when they eat the plants. Oxygen is also released, which allows us to breathe. |
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What is the basic structure of the Chloroplast? |
The chloroplast has two membranes (a bilayer). The inner membrane is called the thylakoid. |
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What is the structure of the thylakoid? |
The thylakoid is folded and looks like stacks of coins called 'granum' (grana singular)
The 'stroma' is the space surrounding the grana. |
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How many reactions take place in photosynthesis? And what are the called? |
2 reactions take place in photosynthesis, one is called the 'light dependant reaction' and the second is the 'light in-dependant reaction' |
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What does the 'light dependant reaction' imply? |
That this reaction only happens in sunlight, as it depends on the light. |
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What does the 'light independent reaction' imply? |
That this reaction is 'independent' from light and can occur without it's presence. |
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What happens in the first stages of the 'light dependant reaction?' |
Light energy is absorbed by the chlorophyll molecules. Light energy trapped in the chlorophyll is then used to split water molecules into hydrogen ions and oxygen ions. This also produces ATP. |
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In the second stage? |
Some of the electron energy pumps the hydrogen ions into the storm and as it does so ADP+ Phosphate get's converted into ATP. |
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Where do the raw materials for photosynthesis enter from? |
Co2 + Water= Leaves, some water=stem. |
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What is light energy absorbed by? What happens from this process? |
The chlorophyll chemical An electron gains energy and becomes 'excited' and is the carried away by a transport carrier molecule. |
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What is the result of this loss of electron? |
From loosing the electron (photo activation) the chlorophyll results in the splitting of a water molecule, the transfer of energy into ATP and the release of NADP. |
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What is water split into? |
Hydrogen and oxygen ions; this split releases ATP. |
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What does the ATP and NAPD produce? |
A carbohydrate from carbon dioxide; glyceraldehyde 3-phosphate (a 3 carbon molecule) |
