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BIO 120-Photosyn
BC-Photosynthesis
| Question | Answer |
|---|---|
| What energy molecule(s) are produced during cyclic photo-phosphorylation? | ATP Only |
| What is the wavelength range of visible light used by most plants in photosynthesis? | 380-750 nm. |
| The half of photosynthesis where light energy is changed into ATP and NADPH. | Light Reactions |
| The main product of the dark reactions (Calvin Benson Cycle) is _______. | Sugar |
| What energy molecule(s) are produced during NON cyclic photo-phosphorylation? | ATP and NADPH |
| A type of plant pigment that absorbs most blue and red wavelengths and reflects the green. | Chlorophyll |
| The product gas in photosynthesis. | Oxygen |
| During which part of photosynthesis is oxygen produced? | Non-Cyclic Photophosphorylation - by Photolysis |
| The term for "self feeders" that use the sun's energy to make organic molecules. | Photoautotrophs |
| 3 parts of Cyclic Photophosphorylation are ______ + ______ + | ETS (Electron Transport System), Photosystem I, Electron Acceptor Molecule |
| What is the name for a packet of light energy? | A Photon |
| The reactant gas in photosynthesis. | Carbon Dioxide |
| Why does photolysis have to occur? | To replace electrons lost in photosystem II. |
| How many times is carbon fixed in C4 plants? | Two times |
| What is the name of the molecule to which carbon dioxide is first "fixed" to in the Calvin Benson cycle? | Ribulose Biphosphate (RuBP) |
| During the dark reactions, ATP provides the _______ and NADPH provides the _______ for building a sugar. | energy; H+ and electrons |
| Another name for the Calvin Benson Cycle is _____. | The Dark Reactions |
| When each molecule in the ETS accepts and then donates an electron, this is known as _______ reactions. | Redox Reactions |
| What is the organelle that serves as the site of photosynthesis? | Chloroplast |
| Name two crops that use the C4 Pathway. | Sugar cane, corn |
| Which type of process (cyclic or non-cyclic photophosphorylation) has both Photosystem I and II in it? | Non-cyclic |
| The stacked disk-like structures inside the chloroplast. | Grana (Granum, pl.) |
| Self feeders that get their energy from stripping electrons from inorganic compounds such as phosphates and nitrates. | Chemosynthetic Autotrophs |
| Photolysis is the splitting of ______. | Water |
| Organisms which obtain their carbon and energy from compounds assembled by other organisms. | Heterotrophs |
| The envelope of two membranes inside the chloroplast is the: | Stroma |
| The portion of photosynthesis in which photolysis occurs: | Light Reactions |
| Autotrophs are the _____ of the biosphere as they make organic molecules from carbon dioxide. | Producers |
| Heterotrophs are the _____ of the biosphere as they use obtain carbon and energy from other organisms. | Consumers |
| ______ are a type of heterotroph that consumes dead organic material or feces. | Decomposers |
| The interior tissue of a leaf which contains most of the chloroplasts is known as the _____. | Mesophyll |
| The openings or pores in a leaf through which carbon dioxide and oxygen are exchanged are the _____. | Stomata |
| Connected sacs in the chloroplast are ____. | Thylakoids |
| Which contains MORE energy, longer wavelengths of EM radiation or shorter wavelengths of EM radiation? | Shorter |
| Which contains LESS energy, longer wavelengths of EM radiation or shorter wavelengths of EM radiation? | Longer |
| Photosystem 680 (PS680) absorbs wavelengths of light optimally at _____. | 680 nm |
| Photosystem 700 (PS700) absorbs wavelengths of light optimally at _____. | 700 nm |
| What molecule is recycled in the Calvin Cycle? | RuBP (Ribulose Biphosphate) |
| Is the Calvin cycle considered to be an anabolic or catabolic pathway? | Anabolic |
| What are the 3 stages of the Calvin Cycle? | Carbon dioxide fixation; Reduction; Regeneration of RuBP |
| In hot, dry climates, plants partially close their _____ to limit water loss. | Stomata |
| C4 plants incorporate carbon dioxide into a _____ compounds as the first produce in the Calvin Cycle. | 4 carbon |
| When water is split during photolysis, what is produced? | 2 electrons, 2 H+ and 1 Oxygen atom |
Created by:
callen-pbsc
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