Term
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Definition
| Surround the veins of plants; contain chloroplasts in C4 plants. |
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Term
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Definition
| Type of photosynthesis in which 3PG is the 1st stable product & ribulose biphosphate is the CO2 receptor. |
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Term
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Definition
| Type of photosynthesis in which oxaloacetate is the 1st stable product & PEP is the CO2 receptor. |
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Term
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Definition
| A type of metabolism in which CO2 fixation occurs at night. |
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Term
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Definition
Use ATP, NADPH + H+ and CO2 to produce sugars.
Recycles ADP and NADP+
Takes place in chloroplast stroma. |
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Term
| The Calvin Cycle occurs in 3 phases: |
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Definition
1) CO2 fixation- Rubisco (RuBP carboxylase) attaches CO2 to RuBP (5c) to form two 3PG (3c) compounds.
2) Reduction of 3PG to form G3P- requires ATP & NADPH
3)Regeneration of RuBP- requires ATP, but not NADPH |
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Term
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Definition
process that captures light energy and uses it to convert CO2 and H2O into sugars and O2.
6 CO2 + 12 H2O -> C6 H12 O6 + 6 H2O |
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Term
Where does the O2 gas come from:
CO2 or H2O? |
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Definition
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Term
| Light is a form of ________. It behaves as both a _____ and a ______. |
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Definition
Electromagnetic Radiation.
Photon
Wave |
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Term
| Light comes in discrete packets called ____. |
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Definition
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Term
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Definition
| Distance between crests and waves. |
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Term
| Wavelength is inversely related to energy contained in ______. |
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Definition
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Term
| ____ wavelengths are more energetic than ____ wavelengths. |
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Definition
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Term
| On the Electromagnetic Spectrum, _____ are the highest energy photons, and ____ are the lowest. |
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Definition
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Term
| The order of the Electromagnetic Spectrum from highest to lowest |
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Definition
Cosmic rays and Gamma rays
Xrays
Ultraviolet rays
Visible Light (violet, blue, green, yellow, orage and red)
Infrared
Microwaves and Radio waves. |
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Term
| Photons are _____, _____, or _____ when they strike a molecule. |
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Definition
| reflected, transmitted, or absorbed |
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Term
| Plants can only use the wavelengths of light that they can _____. |
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Definition
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Term
Molecules that absorb photons are ____.
When electrons absorb energy, they become this. |
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Definition
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Term
| When a photon meets a molecule, one of 3 things will happen: |
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Definition
1) The photon may bounce off the molecule- it may be scattered or reflected.
2) The photon may pass through the molecule- it may be transmitted.
3) The photon may be absorbed by the molecule. |
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Term
| No change will occur in the molecule in when being ______ ______ and ______, but in the case of _______, the photon disappears. |
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Definition
scattered, reflected, and transmitted.
absorption. |
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Term
| When a molecule absorbs a photon, that molecule acquires the energy of the photon. It is thereby raised from a _____ ____, to an _____ _____. |
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Definition
Ground state (with lower energy)
Excited state (with higher energy) |
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Term
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Definition
| Molecules that absorb wavelengths in the visible spectrum- that region of the spectrum that is visible to humans as light. |
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Term
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Definition
| Molecules that absorb photons of light. |
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Term
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Definition
Green
Absorb blue and red wavelengths. |
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Term
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Definition
Orange & Yellow
Called accessory pigments.
Absorb blue and blue-green wavelengths.
Transfer energy to chlorophylls. |
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Term
| All plants contain what pigments? |
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Definition
Chlorophylls a & b
and
Cartenoids (accessory pigments) |
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Term
| What's the difference between the Absorption Spectrum and the Action Spectrum? |
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Definition
| the absorption spectrum indicates how much of each wavelength chlorophyll will absorb, whereas the action spectrum can tell us which off those wavelengths are most effective in photosynthesis |
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Term
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Definition
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Term
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Definition
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Term
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Definition
- Most of the water in a plant comes from the soil.
- Carbon atoms in the organic compounds of plants come from atmospheric CO2.
- Oxygen produced during photosynthesis comes from water.
- CO2 enters and O2 exits the leaf through pores called stomata.
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