0
What else can I help you with?
What happens in the chloroplast of a cell?
In the chloroplast, photosynthesis occurs where light energy is converted into chemical energy in the form of glucose. This process involves the absorption of sunlight by chlorophyll, which initiates a series of biochemical reactions that ultimately produce glucose and oxygen as byproducts. The chloroplast is also responsible for storing and transporting energy in the form of ATP and NADPH.
What enables green plants to convert light energy into chemical energy?
chloroplasts ^yes, organelles called chloroplasts which contain a green pigment named chlorophyl. Chloroplasts undergo photosynthesis, in which light excites electrons in photoreceptors and their energy is used to convert CO2 and H2O into O2 and Glucose (C6H12O6)
How is light energy processed in the light reaction of photosynthesis?
In simple terms, photosynthesis is the conversion of carbon dioxide (CO2) to carbohydrate (CH2O). To do this two things are needed: energy to drive the reaction and a source of hydrogen. The light reaction of photosynthesis produces two essential substances: ATP and NADPH. ATP provides the energy for the conversion of CO2 to CH2O, and NADPH provides the hydrogen. The light reaction depends on groups of chlorophyll molecules, called photosystems, absorbing light energy. The energy is used to eject high energy electrons from the chlorophyll. The energy in the electrons is then used to make ATP and NADPH. There are two photosystems, called photosystem I (PSI) and photosystem II (PSII), which work in sequence. (PSII comes before PSI in the sequence, but they were discovered and named in the reverse order!). PSII absorbs light and emits a high energy electron. The energetic electron then passes down a series of molecules, called an electron transport chain (ETC), releasing energy as it goes (you can visualise it as a ball bouncing down a set of stairs, losing energy as it falls). The energy released is used to make the energy carrier compound ATP. To replace the electrons lost from chlorophyll in PSII water (H2O) is split into hydrogen ions (H+), electrons (e-) and oxygen atoms (O): H2O = 2H+ + 2e- + O This is the source of the oxygen released by photosynthesis. The second photosystem, PSI, also absorbs light and emits a high energy electron from chlorophyll. The energy in this electron is used to drive the synthesis of NADPH from NADP+ ,hydrogen ions (H+) and electrons (e-): NADP+ + 2H+ + 2e- = NADPH + H+ The hydrogen ions needed for this come from the water which was split by PSII. The electrons lost from the chlorophyll in PSI are replaced by the electrons ejected from PSII. The result of all this is that light energy is converted into chemical energy in ATP, water is split to provide the hydrogen needed to make NADPH, and oxygen is released as a waste product. The ATP and NADPH are then used in the light independent reaction (the Calvin cycle) to concert carbon dioxide into carbohydrate.
What does a plant cell do with the light energy it captures?
In the chloroplasts, a photon of light may be used to disassociate a water molecule into hydrogen and oxygen. Light energy also changes NADP to NADPH in the chlorophyll-catalyzed production of carbohydrates.
Explain why the chlorophylls are well named?
Chlorophylls are well named because "chloro-" means green, which accurately describes their green color. These pigments are responsible for capturing light energy during photosynthesis and are abundant in plants, giving them their characteristic green color.
What happens in the chloroplast of a cell?
In the chloroplast, photosynthesis occurs where light energy is converted into chemical energy in the form of glucose. This process involves the absorption of sunlight by chlorophyll, which initiates a series of biochemical reactions that ultimately produce glucose and oxygen as byproducts. The chloroplast is also responsible for storing and transporting energy in the form of ATP and NADPH.
What part of plants absorb light energy?
The chloroplasts.
In photosynthesis plant cells use what to trap light energy and produce glucose?
photosynthesis is the process of how plants use carbon dioxide, water and sunlight and with the help of the chlorophyll (i probably spelled it wrong) cells convert all that into energy or calories. their "waste" is oxygen.
What enables green plants to convert light energy into chemical energy?
chloroplasts ^yes, organelles called chloroplasts which contain a green pigment named chlorophyl. Chloroplasts undergo photosynthesis, in which light excites electrons in photoreceptors and their energy is used to convert CO2 and H2O into O2 and Glucose (C6H12O6)
How is light energy processed in the light reaction of photosynthesis?
In simple terms, photosynthesis is the conversion of carbon dioxide (CO2) to carbohydrate (CH2O). To do this two things are needed: energy to drive the reaction and a source of hydrogen. The light reaction of photosynthesis produces two essential substances: ATP and NADPH. ATP provides the energy for the conversion of CO2 to CH2O, and NADPH provides the hydrogen. The light reaction depends on groups of chlorophyll molecules, called photosystems, absorbing light energy. The energy is used to eject high energy electrons from the chlorophyll. The energy in the electrons is then used to make ATP and NADPH. There are two photosystems, called photosystem I (PSI) and photosystem II (PSII), which work in sequence. (PSII comes before PSI in the sequence, but they were discovered and named in the reverse order!). PSII absorbs light and emits a high energy electron. The energetic electron then passes down a series of molecules, called an electron transport chain (ETC), releasing energy as it goes (you can visualise it as a ball bouncing down a set of stairs, losing energy as it falls). The energy released is used to make the energy carrier compound ATP. To replace the electrons lost from chlorophyll in PSII water (H2O) is split into hydrogen ions (H+), electrons (e-) and oxygen atoms (O): H2O = 2H+ + 2e- + O This is the source of the oxygen released by photosynthesis. The second photosystem, PSI, also absorbs light and emits a high energy electron from chlorophyll. The energy in this electron is used to drive the synthesis of NADPH from NADP+ ,hydrogen ions (H+) and electrons (e-): NADP+ + 2H+ + 2e- = NADPH + H+ The hydrogen ions needed for this come from the water which was split by PSII. The electrons lost from the chlorophyll in PSI are replaced by the electrons ejected from PSII. The result of all this is that light energy is converted into chemical energy in ATP, water is split to provide the hydrogen needed to make NADPH, and oxygen is released as a waste product. The ATP and NADPH are then used in the light independent reaction (the Calvin cycle) to concert carbon dioxide into carbohydrate.
What does a plant cell do with the light energy it captures?
In the chloroplasts, a photon of light may be used to disassociate a water molecule into hydrogen and oxygen. Light energy also changes NADP to NADPH in the chlorophyll-catalyzed production of carbohydrates.
What enables plants to convert light energy to chemical energy?
chloroplasts ^yes, organelles called chloroplasts which contain a green pigment named chlorophyl. Chloroplasts undergo photosynthesis, in which light excites electrons in photoreceptors and their energy is used to convert CO2 and H2O into O2 and Glucose (C6H12O6)
Explain why the chlorophylls are well named?
Chlorophylls are well named because "chloro-" means green, which accurately describes their green color. These pigments are responsible for capturing light energy during photosynthesis and are abundant in plants, giving them their characteristic green color.
What wavelengths do photosystems I and II prefer?
The photosystems are named after the wavelength for which they are the most reactive. Photosystem II is P680 which means that it has the highest reavtivity when light that is 680 nanometers (nm) hits it. Photosystem I works off the same principle; however, it is named P700 because the optimal wavelength for it is 700 nm.
Which scientist investigate how plants make food?
A meteorologistA plant physiologist named Calvin investigated light eactions of photosynthesis and dark reactions were discovered by Blackmann.
What does the chloroplast do on a plant?
It is making food. It named as photosynthesis.
What is named after EMC2 scientist?
The SI unit of energy, the erg, is named after physicist Albert Einstein's equation E=mc^2, where E represents energy, m represents mass, and c represents the speed of light.
