Protein synthesis in an animal cell takes place

In summary, protein synthesis in an animal cell primarily takes place in the cytoplasm and on the endoplasmic reticulum, with some translation occurring in the mitochondria as well. The nucleolus is not directly involved in protein synthesis, but plays a role in the production of ribosomal RNAs and the assembly of ribosomes. While some sources suggest that option (a) - protein synthesis occurring in both the cytoplasm and mitochondria - is correct, it can be argued that no single option is completely accurate.
  • #1
gracy
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protein synthesis in an animal cell takes place
(a)in the cytoplasm as well as mitochondria
(b)only on ribosome attached to nucleus
(c)only in the cytoplasm
(d)in the nucleolus as well as in the cytoplasm
some sites suggest option (a)is correct
and some site says option d is correct.
Which is actually correct?I think option (a)
 
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  • #2
While I don't know the answer, can you provide your reasoning as to why you think choice (a) is the correct one and why the others are not the correct answers?
 
  • #3
jedishrfu said:
why you think choice (a) is the correct
Actually because the site according to which option (a)is correct is more reliable.
 
  • #5
Honestly, I would say none of the answers are correct. If asked, most biologists would probably say that the majority of translation occurs in the cytoplasm or on the endoplasmic reticulum (ER). However, mitochondria do contain their own ribosomes to translate the ~13 genes in the mitochondrial genome that encode proteins, and some nuclear-encoded mitochondrial proteins are translated on the surface of mitochondria as well. So, translation does occur at the mitochondria, though the majority of proteins are translated either in the cytoplasm or on the ER.
 
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  • #6
Ygggdrasil said:
So, translation does occur at the mitochondria, though the majority of proteins are translated either in the cytoplasm or on the ER.
And what about nucleolus?
 
  • #7
No protein synthesis occurs in the nucleolus. The nucleolus is important for translation, however, because it is involved the production of ribosomal RNAs and the assembly of ribosomes.
 
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  • #8
Thanks sir @Ygggddrasil.
 

What is protein synthesis?

Protein synthesis is the process by which cells create new proteins using the genetic information stored in DNA. This process is essential for the growth, repair, and maintenance of cells and tissues in an organism.

Where does protein synthesis take place in an animal cell?

In an animal cell, protein synthesis takes place primarily in the ribosomes, which are located in the cytoplasm. Some specialized cells, such as muscle cells, also have ribosomes attached to their endoplasmic reticulum.

What are the steps involved in protein synthesis?

There are two main steps in protein synthesis: transcription and translation. In transcription, the genetic information in DNA is copied into mRNA. In translation, the mRNA is used as a template to assemble amino acids into a specific sequence, forming a protein.

What role do transfer RNA (tRNA) molecules play in protein synthesis?

tRNA molecules are responsible for bringing amino acids to the ribosome during the process of translation. Each tRNA molecule has a specific sequence of nucleotides that corresponds to a specific amino acid, ensuring that the correct amino acids are added to the growing protein chain.

How does protein synthesis in an animal cell differ from that in a plant cell?

The basic process of protein synthesis is the same in both animal and plant cells. However, plant cells have some unique organelles, such as chloroplasts, that are involved in protein synthesis. Additionally, plant cells may use different types of tRNA molecules and have different regulatory mechanisms for controlling protein synthesis.

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