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DIA [1.3K]
4 years ago
14

Which of the following molecules get recycled during photosynthesis?

Biology
1 answer:
Misha Larkins [42]4 years ago
4 0
<h2>Answer</h2>

The right option of this question is (A).

<h2>Explanation</h2>

When the light absorbs by the photosynthetic apparatus, the water molecules break down to produce essential material to continue the photosynthetic cycle as electron and H-ions. The H-ions becomes stored in thylakoid chamber and passed through the ATP synthetic machines to refill the ADP or AMP molecules. The generated electron passes through the various stages of photosynthetic series to finally produce the NADPH which also acts as energy transfer compound. At the PSI, the electron transfer to the NADP to generate NADPH.

The carbon dioxide is produced during the respiration cycle and glucose during the Calvin Cycle. So, the right option is (A).

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3 years ago
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4 years ago
In studying secreted proteins, you find that Substance X inhibits the secretion of a labeled protein. However, you do find a ful
expeople1 [14]

Answer:

The correct answer is: b. Budding of the secretory granule.

Explanation:

  • In eukaryotic cells, the pathway by which secretory proteins are produced and are secreted can be explained below:
  1. The gene {DNA (Deoxyribonucleic Acid) sequence}, located on the genome, encoding the secretory protein is transcribed into an mRNA (messenger Ribonucleic Acid) by the RNA polymerase. This process happens in the Nucleus.
  2. The mature mRNA is translocated from the nucleus into the cytoplasm.
  3. In the cytoplasm it associates with the ribosome but translation process does not begin now.
  4. This is because, as the mRNA sequence has the tag of forming a secretory protein, it can be translated only when the ribosome bound mRNA sequence attaches itself to the ER (Endoplasmic Reticulum).
  5. On attachment to the ER, the process of translation begins and the polypeptide formed is released into the lumen of the ER.
  6. The process of glycosylation starts in the ER.
  7. The glycosylated protein is then transported from the ER in membrane bound vesicles to the cis, medial and trans Golgi, where the process of glycosylation gets completed and the protein gets completely folded.
  8. After this, secretory vesicles buds off from the Golgi and migrate towards the plasma membrane.
  9. At the plasma membrane, the secretory vesicles fuse with the plasma membrane and releases the protein out of the cell by the process of Exocytosis.
  • In the given question completely folded glycosylated protein is formed but it is not secreted. This means the protein is able to reach to the Golgi bodies. But secretory vesicle formation does not take place.
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3 years ago
A nucleotide-sugar coenzyme involved in carbohydrate metabolism (UDP-glucose) is formed when UTP reacts with a glucose molecule.
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Answer:

b. UDP

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What is a way that humans enjoy acute stress ?
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