Photsynthesis
1903129453 | Autotroph | organisms which make their own food | 0 | |
1903129454 | Grana | stacks of thylakoids | 1 | |
1903129455 | Thylakoid | saclike photosynthetic membranes | 2 | |
1903129456 | Chlorophyll | plants' principle pigment | 3 | |
1903129457 | Pigment | light-absorbing molecules | 4 | |
1903129458 | Photosynthesis | plants use the energy of sunlight to convert water and carbon dioxide into high-energy carbohydrates - sugars and starches - and oxygen, a waste product | 5 | |
1903129459 | Adenosine triphosphate | one of the principle chemical compounds that cells use to store and release energy | 6 | |
1903129460 | Heterotroph | organisms which obtain energy from the food that they consume | 7 | |
1903129461 | Photosystem | chlorophyll and other pigments are organized into complexes | 8 | |
1903129462 | Light - dependent reactions | requires light | 9 | |
1903129463 | ATP synthase | spans the membrane and allows H+ ions to pass through it and produces ATP | 10 | |
1903129464 | Calvin cycle | plants use the energy that ATP and NADPH contain to build high-energy compounds that can be stored for a long time | 11 | |
1903129465 | Stroma | the region outside the thylakoid membranes | 12 | |
1903129466 | NADP+ | an electron carrier | 13 | |
1903129467 | What do autotrophs require from the environment in order to synthesize sugar? | Light Carbon dioxide Water (and soil minerals) | 14 | |
1903129468 | Organisms that make their own food are called | autotrophs | 15 | |
1903129469 | Most autotrophs obtain their energy from: | sunlight | 16 | |
1903129470 | How is energy released from ATP? | A phosphate is removed. | 17 | |
1903129471 | How is it possible for most cells to function with only a small amount of ATP? | ATP can be quickly regenerated from ADP and P. | 18 | |
1903129472 | Compared to the energy stored in a molecule of glucose, ATP stores | much less energy. | 19 | |
1903129473 | What is the ultimate source of energy for plants? | The Sun | 20 | |
1903129474 | What is ATP and what is its role in the cell | ATP stands for adenosine triphosphate, which is one of the principle chemical compounds that living things use to store energy and release it for cell work to be done. | 21 | |
1903129475 | Describe several cellular activities that uses the energy released by ATP. | Active transport, movements within the cell, synthesis of proteins and nucleic acids, or responses to chemical signals. | 22 | |
1903129476 | How do autotrophs obtain energy? | Autotrophs obtain energy by making their own food | 23 | |
1903129477 | How do heterotrophs obtain energy? | Heterotrophs obtain energy from the foods they consume | 24 | |
1903129478 | With respect to energy, how are ATP and glucose similar? | Both store energy for a cell | 25 | |
1903129479 | With respect to energy, how are ATP and glucose different? | A single molecule of glucose stores more than 90 times the chemical energy of an ATP molecule. | 26 | |
1903129480 | In van Helmont's experiment, most of the added mass of the tree came from | water and carbon dioxide. | 27 | |
1903129481 | Plants use the sugars produced in photosynthesis to make | startches | 28 | |
1903129482 | The raw materials required for plants to carry out photosynthesis are | carbon dioxide and water. | 29 | |
1903129483 | The principal pigment in plants is | chlorophyll | 30 | |
1903129484 | The colors of light that are absorbed by chlorophylls are | blue, violet, and red | 31 | |
1903129485 | What did van Helmont discover about plants? | water is involved in increasing the mass of the plant | 32 | |
1903129486 | What did Priestly (first bell jar experiment) discover about plants? | a plant produces the substance in air required for burning | 33 | |
1903129487 | What did Ingenhousz (second bell jar experiment) discover about plants? | light is necessary for plants to produce oxygen | 34 | |
1903129488 | Describe the process of photosynthesis, including the reactants and products. | Photosynthesis uses the energy of sunlight to convert water and carbon dioxide into oxygen and high-energy sugars | 35 | |
1903129489 | Why are light and chlorophyll needed for photosynthesis? | Light provides the energy to produce high-energy sugars Chlorophyll absorbs light, and the energy of that absorbed light makes photosynthesis work | 36 | |
1903129490 | Describe the relationship between chlorophyll and the color of plants. | Plants are green because green light is reflected by the chlorophyll in the leaves. | 37 | |
1903129491 | How well would a plant grow under pure yellow light? Explain your answer. | The plant would not grow well because chlorophyll does not absorb much light in the yellow region of visible light. | 38 | |
1903129492 | In plants, photosynthesis takes place inside the | chloroplasts | 39 | |
1903129493 | Energy to make ATP in the chloroplast comes most directly from: | hydrogen ions flowing through an enzyme in the thylakoid membrane. | 40 | |
1903129494 | NADPH is produced in light-dependent reactions and carries energy in the form of: | high-energy electrons | 41 | |
1903129495 | What is another name for the Calvin cycle? | light-independent reactions | 42 | |
1903129496 | Summarize the light-dependent reactions. | The light-dependent reactions produce oxygen gas and convert ADP and NADP+ into the electron carriers ATP and NADPH. | 43 | |
1903129497 | What reactions make up the Calvin cycle? | The Calvin cycle uses ATP and NADPH from the light-dependent reaction to produce high-energy sugars. | 44 | |
1903129498 | How is light energy converted into chemical energy during photosynthesis? | Light energy is converted into chemical energy by the pigments in the chloroplast. | 45 | |
1903129499 | What is the function of NADPH? | The main function of NADPH is to carry high-energy electrons produced by light absorption in chlorophyll to chemical reactions elsewhere in the cell. | 46 | |
1903129500 | Why are the light-dependent reactions important to the Calvin cycle? | The light-dependent reactions provide the Calvin cycle with ATP and NADPH. The Calvin cycle uses the energy in ATP and NADPH to produce high-energy sugars. | 47 |