Question

A researcher incubates a cell with radiolabeled amino acids. These amino acids are incorporated into the proteins as they are synthesized by the cell. Select which piece of data would indicate the incorporation of radiolabeled amino acids during protein synthesis? A) Radioactivity levels would increase first at the nucleus, followed by the Golgi, and then the cell membrane. B) Radioactivity levels would increase first at the nucleus, followed by the ribosomes, and then the secretory vesicles. C) Radioactivity levels would increase first at the rough endoplasmic reticulum, followed by the Golgi, and then the secretory vesicles. D) Radioactivity levels would increase first at the rough endoplasmic reticulum, followed by the nucleus, and then the secretory vesicles.

Answer 1

Answer:

The incorporation of radiolabeled amino acids during protein synthesis occurs when the data shows the organelles involved with protein synthesis, packaging and transport, that is, radioactivity levels would increase first at the rough endoplasmic reticulum, followed by the Golgi, and then the secretory vesicles (option C).

Explanation:

Protein synthesis in the cell occurs when RNA -which contains the sequence of triplets or codons that make up the genetic code- is coupled to ribosomes.

Each codon or triplet, consisting of three nucleotides, will give instructions for specific amino acids to be incorporated into the polypeptide chain that is being synthesized in the rough endoplasmic reticulum.

The Golgi apparatus is responsible for packaging or packaging the newly synthesized proteins in secretory vesicles for transport.

In consecuense, radioactivity levels would increase in the organelles involved in protein synthesis, packaging and transport, the rough endoplasmic reticulum, Golgi apparatus and secretory vesicles, respectively.

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Answer 2

Answer:

c

Explanation:

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