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Science ##4
| Question | Answer |
|---|---|
| photosynthesis | is the process by which light energy is converted to chemical energy |
| autotrophs | organisms that use energy from sunlight or from chemical bonds in inorganic substances to make organic compounds |
| heterotrophs | organisms that must get energy from food instead of directly from sunlight or inorganic substances |
| cellular respiration | metabolic process similiar to burning fuel; makes much of the energy in food to make ATP |
| pigments | light-absorbing substances that absorb only certain wavelengths and reflect all others |
| chlorophyll | the primary pigment involved in photosynthesis, absorbs mostly blue and red light and reflects green and yellow |
| cartenoids | absord wavelengths of light different from those absorbed by chlorophyll |
| thylakoids | clusters of pigments are embedded in the membranes of disk-shaped structures |
| electron transport chains | the series of molecules through which excited electrons are passed along a thylakoid membrane |
| NADPH | is an electron carrier that provides the high-energy electrons needed to make carbon-hydrogen bonds in the third stage of photosynthesis |
| carbon dioxide fixation | transfer of carbon dioxide to organic compounds |
| calvin cycle | series of enzyme assisted chemical reactions that produces a three-carbon sugar |
| aerobic | metabolic process that requires oxygen |
| anaerobic | metabolic processes that do not require oxygen |
| glycolysis | enzyme assisted anaerobic process that breaks down one six-carbon molecule of glucose to two three-carbon pyrucate ions |
| NADH | an electron carrier formed by NAD+ |
| krebs cycle | a series of biochemcical reactions that convert pyruvic acid into carbon dioxide and water |
| FADH | type of electron carrier |
| fermentation | the recycling of NAD+ using an organic hydrogen acceptor |
| the source of oxygen during photosynthesis | carbon dioxide |
| why is ATP called the energy "Currency" | delivers energy wherever needed in a cell |
| if you intensify the light what will happen to the rate of photosynthesis | it will reach its maximum |
| what process converts light energy to chemical energy | photosynthesis |
| fermentation enables glycolysis to continue under what condition | anaerobic conditions |
| what are the dark reactions of photosynthesis | carbon dioxide fixation |
| how do heterotrophs get energy | from eating other organisms that go through photosynthesis |
Created by:
Hannah P
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