During photosynthesis what role is played by the radiant energy of the sun

Biology

1 answer:

Natali [406]3 years ago

7 0

Answer:

The radiant energy of the sun is used by chlorophyll as an energy source to excite photosystems I and II, which are located in the membrane of the thylakoid.

Explanation:

When the light energy is converted into chemistry inside the photosystem, electrons are released and travel from photosystem II to photosystem I, through a protein complex; plastoquinone, cytochrome B, and plastocyanin.

When light hits, enzymes with REDOX power are activated while in photosystem I, one of the electrons converts NADP to NADPH, capturing protons from the stroma. Finally the NADPH and the ATP generated by the ATP synthetase of the thylakoid membrane, are products of the light stage of photosynthesis

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AnnyKZ [126]

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Alina [70]

Which type(s) of cells have genetic material that is contained in a nucleus?

D. Both plants and animal cells

Eukaryotic cells are those cells that retain their genetic material inside the nucleus. They have well defined nucleus. Plants and animals cells are eukaryotic cells...~

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Read 2 more answers

Why is the influx of nitrogen not healthy for an aquatic ecosystem?

kupik [55]

The influx of nitrogen is not healthy for an aquatic ecosystem because it is not something that normally appears in that environment. It can damage the plants and animals that live in the ecosystem. It can also affect the water and soil were the plants and animals live.

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Si un RNA mensajero (mRNA) esta formado por 700 nucleótidos, ¿puede ser posible que

alexgriva [62]

Answer:

Si, esto es posible ya que para llegar a su forma madura el ARN mensajero sufre un procesamiento conocido como empalme alternativo donde su longitud se reduce drásticamente mediante la eliminación de regiones no codificantes (intrones) presentes en el trascripto primario

Explanation:

En células eucariotas, la transcripción refiere al proceso donde un gen es usado como templado para generar un ARN mensajero (ARNm) inmaduro conocido como pre-ARNm, el cual contiene regiones cortas codificantes (exones) y regiones largas no codificantes (intrones). Durante el proceso de empalme alternativo, también conocido como splicing alternativo, este pre-ARNm sufre un procesamiento mediante el cual los intrones son eliminados y los exones son retenidos y empalmados, con lo cual el ARNm maduro final reduce drásticamente su longitud original. En el caso arriba descripto, una proteína con 70 aminoácidos resultaría de la traducción de un ARNm maduro que posee 210 bases nucloetídicas, ya que cada triplete de nucleótidos o 'codón' corresponde a un sólo aminoácido agregado a la cadena polipeptídica durante la síntesis proteica en los ribosomas.

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3 years ago

Mutations can also occur within the regulatory regions of genes. Fragile X is an example of a disorder caused by one such mutati

bixtya [17]

Answer:

Triple repeat expansion.

Explanation:

Fragile X syndrome is the genetic disorder in which the toxic RNA is produced in the body. This mutation is located on the long arm of the X chromosome.

Fragile X syndrome is also known as trinucleotide repeat disorders. The nucleotide CCG is increased in the affected individual from 200 to 4000. The severity of the disease depends on the repeat of CCG nucleotide in the individual.

Thus, the answer is triple repeat expansion.

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