What would happen to a cell if there were no more ribosomes?
2007-01-19 01:56:59 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Ribosomes are not oraganelles, they are not membrane bound structures. Ribosomes are MADE of ribosomal RNA (rRNA, 28s and 18s subunits in eukaryotes), not mRNA or tRNA. They use mRNA and tRNA (not DNA) in basic protein synthesis.Translation from mRNA to protein begins with the start codon AUG (for methionine). From there, another amino acid is added for every 3 bases according to the genetic code until a stop codon is reached. Transfer RNA (tRNA) is used as the intermediate between mRNA and amino acids. On one end of the tRNA is the reverse complement to a specific codon, and on the other is the corresponding amino acid. For example, the tRNA for methionine would have the 5' to 3' sequence CAU to bind with the AUG codon.
2007-01-19 06:37:24 · answer #1 · answered by NML 1635 3 · 0⤊ 0⤋
If there were no ribosomes cells wouldn't form as they have a key role in building proteins from the code of DNA.
2007-01-19 10:00:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
ribosomes are very important in production of proteins(protiensynthesis)ribosomes contain rRNA along with mRNA and tRNA it produces protiens. if there are no ribosomes in the cell it cannot divide, because protiens are required for cell division.
2007-01-19 10:24:55 · answer #3 · answered by jakkula s 1 · 0⤊ 0⤋
Ribosomes are the site of protein synthesis (where amino acids form to make proteins).
The cell would probably die.
2007-01-19 10:01:04 · answer #4 · answered by Jacques 5 · 0⤊ 0⤋
It translates messenger RNA (mRNA) into a polypeptide chain (e.g., a protein). It can be thought of as a factory that builds a protein from a set of genetic instructions
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2007-01-19 10:00:21 · answer #5 · answered by Anonymous · 0⤊ 0⤋
because they are the organelles that used in translation and syntheses of proteins in the cell
2007-01-19 10:01:17 · answer #6 · answered by farzy_sh 2 · 0⤊ 0⤋