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They are chlorophyll molecule systems.They are light absorbing molecules.
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∙ 8y ago
Photosystem I and Photosystem II are two protein-based complexes found in the thylakoid membrane of chloroplasts in plants, algae, and cyanobacteria. They are involved in the process of photosynthesis, capturing and converting light energy into chemical energy. Photosystem II functions first in the light reactions of photosynthesis, while Photosystem I follows to further harness light energy and produce ATP and NADPH, which are vital for the synthesis of sugars.
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How does electrons move photosytem II to photosytem?
No, they move from photosystem 2 to photosystem 1. 2 evolved first but was not discovered until after photosystem 1.
What goes in the electron transport chain?
When light hits photosytem II (within the thylakoid), it excites electrons which move through the electron transport chain.
What is a role of photosytem 2 in the light reactions?
splitting h2o
What is a photosytem?
Chloroplasts can only absorb certain wavelengths of light because of the pigments they contain. There are 2 photosystems in plants called photosystem I and II. PS I absorbs light on the wavelength of 700nm while PS II absorbs 680nm because of their utilization of chlorophyll A and B. These two frequencies are are known as the peak absorption points because they are the wavelength at which light is most strongly absorbed. Different forms of chlorophyll and other photosynthetic pigments absorb other other frequencies of light but PS I and PS II are what is used for synthesizing ATP and reducing power which plants use to grow. The visible spectrum of light is between 380-750nm for humans. Therefore PS I and II require red light to perform photosynthesis. As stated before, however, there are other photosynthetic pigments present in plants and other phototrophic species such as bacteria and algae that absorb other pigments. An example of this is the carotenoid pigment that absorbs primarily blue light as do chlorophyll A and B. Blue light contains more energy than red light but for PS I and II and plant growth both are needed.
What stage of meiosis II is skipped?
Interphase II
How does electrons move photosytem II to photosytem?
No, they move from photosystem 2 to photosystem 1. 2 evolved first but was not discovered until after photosystem 1.
What goes in the electron transport chain?
When light hits photosytem II (within the thylakoid), it excites electrons which move through the electron transport chain.
What is a role of photosytem 2 in the light reactions?
splitting h2o
What is photosytem?
Photosystem is a biochemical mechanism in plants that chlorophyll absorbs light energy for photosynthesis.
What is the role of carotenoids in a photosytem?
Carotenoids are colored pigments found in plant cells such as in brown algae, in carrots and more. They are accessory pigments which do not do photosynthesis. They transmit energetic to chlorophyll for the process of photosynthesis.
What is a role of photosytem l in the light reactions?
It is placed as second photosystem in the light reactions of plants, algae and some bacteria. It is an integral membarne protein complex. It functioning the electron transfer from plastocyanin to ferredoxin. Like PSII, PSI also uses light energy to excite electrons.
What is a photosytem?
Chloroplasts can only absorb certain wavelengths of light because of the pigments they contain. There are 2 photosystems in plants called photosystem I and II. PS I absorbs light on the wavelength of 700nm while PS II absorbs 680nm because of their utilization of chlorophyll A and B. These two frequencies are are known as the peak absorption points because they are the wavelength at which light is most strongly absorbed. Different forms of chlorophyll and other photosynthetic pigments absorb other other frequencies of light but PS I and PS II are what is used for synthesizing ATP and reducing power which plants use to grow. The visible spectrum of light is between 380-750nm for humans. Therefore PS I and II require red light to perform photosynthesis. As stated before, however, there are other photosynthetic pigments present in plants and other phototrophic species such as bacteria and algae that absorb other pigments. An example of this is the carotenoid pigment that absorbs primarily blue light as do chlorophyll A and B. Blue light contains more energy than red light but for PS I and II and plant growth both are needed.
What are the books in Bible with same name?
* I and II Samuel * I and II Kings * I and II Chronicles * I and II Corinthians * I and II Thessalonians * I and II Timothy * The Gospel of John and I, II, and III John
What is ii?
As a Roman numeral ii or II is equivalent to 2
What is the chemical name of SnCr2O7?
The name of SnCrO4 is Tin II Chromate or stannous chromate.
What are the names of some mountains in Romania?
Examples (Romanian names): Munții Făgăraș, Munții Măcinului, Munții Apuseni, Munții Retezat, Munții Rodnei, Munții Bucegi, Munții Baiului, Munții Ciucaș etc.
Why is E II R on Elizabeth II coronation bible?
E II R stands for E=Elizabeth; II = second; R= Regina. Hence E II R = Elizabeth II Regina.
