Term
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Definition
| organisms generate energy for these processes in the form of the molecule ATP |
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Term
| starting material for cellular respiration |
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Definition
| glucose or some other molecule from food |
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Term
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Definition
| plants get their nutrition by making their own food |
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Term
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Definition
| humans and other organisms which eat or absorb their nutrients |
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Term
| plants make their own food by which process |
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Definition
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Term
| what food is made by plants during photosynthesis |
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Definition
a sugar known as G3P (glyceraldehyde 3-phosphate)
can be used to make glucose for cellular respiration
-raw product from which all other carbon-containing molecules found in plants are made |
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Term
| chemical reaction of photosynthesis |
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Definition
| 6CO2+ 6H2O+ light energy--->C6H12O6+ 6O2 and sugar |
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Term
Leaf Structure
Where does photosynthesis occur in plants and subcellular level? |
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Definition
plants: leaves
Subcellular level: occurs in the organelles called chloroplasts |
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Term
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Definition
| waxy coating that prevents the loss of water through the leaves by evaporation. Also prevents the entry of CO2 into the leaves |
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Term
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Definition
specialized structures in the leaves
-necessary for the entry of CO2. Opening in the leaf where not only CO2, but also O2 and H2O pass through |
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Term
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Definition
is bordered by a pair of guard cells which regulate the size of the stomatal opening in the leaf. Typically stomata will be closed during the day to prevent water loss through evaporation, and open at night to allow entry of CO2.
-mostly found at the bottom surface of the leaf |
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Term
| two stages of photosynthesis |
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Definition
- light reactions
- Calvin cycle- Dark RXN
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Term
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Definition
| converts light energy to chemical energy and the calvin cycle uses the chemical energy from the light reactions to make sugar |
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Term
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Definition
| reason something appears a certain color is that it reflects the wavelengths of light corresponding to that color and it absorbs the other wavelengths |
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Term
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Definition
molecules that absorbs visible light. plant contains several different types of pigment molecules including
- chlorophyll a
- chlorophyll b
- carotenoids
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Term
| for the spinach leaf exercise, what did we use? |
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Definition
Pigment Chromatography
used chromatography paper |
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Term
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Definition
an orange band running even with the solvent front
- travel the highest |
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Term
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Definition
| two separate yellow bands |
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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
| what is the product of the light reaction? |
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Definition
ATP and NADPH
the chemical energy in the form of ATP and NADPH made by the light reactions is then utilized by the calvin cycle to produce G3P. The ATP is a source of energy for driving endergonic reactions in the Calvin cycle. The NADPH is a source of electrons for reducing the CO2 taken in through stomata to make G3P |
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Term
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Definition
| potato plants store excess starch in the potato in organelles called leucoplasts |
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Term
| Absorption spectrum of plant pigments |
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Definition
used ethanol and then diluted water
used spectrophotometer |
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Term
What color of light do the spinach pigments absorb most poorly? |
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Definition
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Term
| Do the stomata on the leaf of the prepared slide appear to be equally distributed on the upper and lower surfaces of the leaf? Why is that? |
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Definition
| No, we will see more stomata on the lower surface of the leaf than on the upper surface of leaf. This due to the H2O conservation (water-saving) features for plants to prevent H2O lose through the stomata |
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Term
| One stomata has how many guard cells? |
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Definition
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Term
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Definition
- Transports water
- Transports nutrients
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Term
| An elodea leaf is how many cells thick? |
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Definition
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Term
| What are the yellowish-green circular organelles in each cell? |
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Definition
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Term
Storage of starch in potato cells
What is one of these starch-containing organelles called? |
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Definition
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