click below
click below
Normal Size Small Size show me how
Cell Respiration
Cellular Respiration and Photosynthesis
Term | Definition |
---|---|
Chloroplasts | site of the Calvin Cycle |
Cuticle | The waxy top layer of the leaf that prevents water loss. |
autotroph | Organisms that make their own food. |
heterotroph | Organisms that must seek out food sources. |
ATP | A chemical compound that is used by cells to store and release energy. |
Photosynthesis | The process by which autotrophs create food. |
Pigment | Light-absorbing/reflecting molecules. Responsible for the colour of plants |
Chlorophyll | Plant pigment (Chlorophyll A-absorbs blue light; Chlorophyll B-absorbs red light). Neither can absorb green light very well. |
Thylakoid | Saclike photosynthetic membranes. |
Photosystems | Proteins in the thylakoid membrane that organize chlorophyll and other pigments into clusters |
Stroma | The region outside the thylakoid membranes. |
NADP+ | Takes in and holds 2 high-energy electrons along with a hydrogen ion. |
Light-Dependent Reactions | Reactions that require light to function |
ATP Synthase | A protein that spans the membrane and allows H ions to pass through. |
Calvin Cycle | Uses ATP and NADPH from light dependent reactions to produce high-energy sugars. |
Calorie | The amount of energy needed to raise the temperature of 1 gram of water, 1 degree. |
Glycolysis | A pathway that releases only a small amount of energy, unless oxygen is present, which then leads to two energy pathways. |
Cellular Respiration | The process that releases energy by breaking down glucose and other food molecules. 6O2 +C6H12O6.....6CO2 + 6H2O + Energy |
NAD+ | A reactant of glycolysis; releases four high energy electrons and passes them to an electron carrier, |
Fermentation | Releases energy from food molecules by producing ATP in the absence of oxygen. |
Anaerobic Reaction | Does not require oxygen |
Aerobic Reaction | Requires oxygen |
Krebs Cycle | Second stage of cellular respiration; in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions. |
Fermentation | A reaction that releases energy from food molecules by producing ATP in the absence of oxygen. |
Alcoholic Fermentation | Anaerobic reaction that takes pyruvic acid + NADH...alcohol + CO2 + NAD+ |
Lactic Acid Fermentation | pyruvic acid + NADH....lactic acid + NAD+ |
Pyruvic Acid | The result of glycolysis, in which glucose is broken down into two molecules of this reactant. |
Krebs Cycle | Pyruvic acid is broken down into carbon dioxide in a series of energy extracting reactions. |
Electron Transport Chain | Converts ADP to ATP from the carriers of the Kreb cycle. |