Do Animal Cells Have Ribosomes? 7 Facts You Should Know

Ribosomes are the organelle that is present in every eukaryotic organism. Animal cell is a type of cell that is present in humans and animals. This article we will get to know more details on do animal cells have ribosomes.

Yes animal cells do have the organelle ribosomes in them. Ribosome is an organelle that is used as a  machine to produce or synthesize the very important compound in every living being, the protein. Ribosomes synthesize or produce the amino acid fragments or molecules, which all together called the proteins. 

Every eukaryotic organism possesses such organelles for their complex cellular mechanisms for they sustain and survive on the planet.Proteins are almost like the constructive blocks in every organism and the significance in their synthesis is requisite.

In the case of animal cells, including humans and animals multiple complex reactions take place in our body so we and animals require that amount of ribosomes in our body to sustain and survive.

Do all animal cells have ribosomes?

Animal cells are complex eukaryotic cells that have all kinds of organelles.

Yes, all animal cells have ribosomes in them and that’s how they manage to produce enough amino acids and further they are combined to form the proteins in our body. So, yes all animal cells have ribosomes in them.

Plant Cell
Ribosomes
Image credits- Wikimedia

Do animal cells have free ribosomes?

There are 2 types of ribosomes seen in the animal cell.

Yes, animal cells have free ribosomes in them. One they have free ribosomes and the second is they may be attached to other organelles.

Free ribosomes are called the ribosomes that are present or available freely floating in the cytoplasm rather than being attached to any organelle or any other cell component.

Ribosomes that are attached to other organelles are ribosomes which are adhered on the surface of endoplasmic reticulum.

Do animal cells have 80s ribosomes?

Animal cells are complex and systemic  eukaryotic cells, with all functionalities that make up a complex process.

Yes, animal cells have 80S ribosomes consisting of the minute little 40S subunit  and large or huge 60S subunit.

40 S + 60 S = 80 S

Where S is the Svedberg unit.

Do animal cells have 70s ribosomes?

Animal cells are not simple prokaryotic cells, prokaryotic cells are simple cells with no systematic or network of  fancy mechanisms taking place. Ex: Bacteria

No, Animal cells do not have 70 S. 70 S can be seen in the ribosomes of the prokaryotic cells which consist of the minute 30S subunit and large or huge  50 S subunit.

30 S + 50 S= 70 S  

Where S is the Svedberg unit.

Animal cell ribosome size:

  • Ribosomes have 2 types of subunits in them
  • In case of animal cells, it is 80 S (40 S + 60 S)
  • Ribosomes have longer hinges than diameter as they have 2 subunits in different sizes.
  • The eukaryotic cell or the animal cell have ribosome with the size of almost approximately 25 to 30 nm in diameter
  • The molecular weight of both the 40 S + 60 S (80 S) is 4* 106 Dalton.

Animal cell ribosomes function:

  • Ribosomes are like the manufacturing machinery of the protein in the animal body.
  • The DNA makes a copy of the mRNA which is called the process of the DNA transcription.
  • From the nucleus, the synthesized mRNA then travels to the cytoplasm of the cell and gets initiated with the process of protein synthesis which is called the translation.
  • The subunit complex gets associated and attached to the mRNA and tRNA starts to code for amino as with mRNA sequence as references.
Ribosomes Original Image
Structure of ribosomes
Image credits- Wikimedia
  • Thus the amino acids produced will bond with each other using peptide bonds and the protein is synthesized.
  • So this is the function of the ribosomes, they aid in the production of amino acids by acting as a machinery to manufacture amino acids

Animal cell ribosomes structure:

  • There are 2 subunits in the animal cell ribosomes.
  • First is the  60 S subunit which is the large unit
  • Second is the 40 S subunit which is the smaller or the tiny unit
  • They both form the shape of a sandwich and the mRNA is in middle and thus the coding process started
  • Post formation of the amino acids, the subunit complex dissociates.

Summary:

To conclude this article, animal cells do have ribosomes in them to access and produce protein for their cellular mechanisms.

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