4577432
Descripción
Fichas por anniemarsh11, actualizado hace más de 1 año
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Creado por anniemarsh11
hace casi 9 años
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| Pregunta | Respuesta |
| Heterotrophic Nutrition | Eats organic materials (glucose, H6H12O6) *animalia *protoctists |
| Autotrophic Nutrition | Converting inorganic material (CO2,H2O) into organic material (glucose) *Plants |
| Saprophytic Nutrition | Breaks organic material down and converts it back to inorganic material by decomposing dead organisms *bacteria *fungi |
| Photosynthesis equation | 6CD2 + 6H2O ---------> (light/chlorophyll) C6H12O6 + 6O2 |
| Photosynthesis: | *makes organic material from inorganic material *Begins all food chains and makes oxygen |
| Photosynthesis means: | putting together with light |
| Why are stomata on the underside of the leaf? | The leaf would become flaccid without stomata due to water loss and neither photosynthesis nor gas exchange would occur. The leaf would always be closed and the plant would eventually die. |
| CHLOROPLASTS: | organelle within the leaf that contains chlorophylla |
| A THANA | consists of thylakoids and is found inside a chloroplast |
| Photosynthesis formula | carbon dioxide + water --------> (light/chlorophyll) glucose + oxygen |
| What is at the centre of a chlorophyll molecule? | a single magnesium atom chemically bonded to four atoms of nitrogen |
| what are the two main stages in photosynthesis? | Light dependent stage and light independent stage |
| Light independent stage | chlorophyll traps light energy from the sun and the energy is used to split H2O into hydrogen and oxygen. the oxygen diffuses out of the leaf as a waste product |
| Light independent stage | hydrogen then combines with carbon dioxide to make glucose ( C6 H12 O6). This stage does not need light. |
| LEAF ADAPTATIONS | *large surface area to absorb light and carbon d. *they lie 90 degrees toward sunlight and spaced around the stem to catch light *Leaves are thin to allow carbon d and light to reach all cells quickly |
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