21 Questions
Which Nobel Prize was awarded for the discovery of ribosomes?
Nobel Prize in Medicine
What is the difference between 70S and 80S ribosomes?
70S ribosomes are found in prokaryotic organisms and eukaryotic organelles, while 80S ribosomes are found in eukaryotic cells
What is the composition of ribosomes?
60% ribosomal RNA (rRNA) and 40% protein
Which subunit of the ribosome binds to the tRNA molecule charged with an amino acid?
Large subunit
Where does ribosome biogenesis take place in prokaryotic cells?
Cytoplasm
Which of the following is NOT a function of ribosomes?
Synthesize DNA
Where are free ribosomes mainly found?
Prokaryotes
Where does ribosome biogenesis take place in eukaryotic cells?
Nucleolus
Which subunit of the ribosome binds to the tRNA molecule charged with an amino acid?
8S rRNA
What is the function of the Peptidyl-site (P site) on the ribosome?
Holds the t-RNA molecule that is linked to the growing end of the polypeptide chain
What is the primary function of free ribosomes in the cytoplasm?
Make proteins that will function in the cytosol
Which scientist proposed the term 'ribosome' instead of 'ribonucleoprotein particles of the microsome fraction'?
RB Roberts
What is the composition of eukaryotic ribosomes?
60% ribosomal RNA (rRNA) and 40% protein
What is the main difference between 70S and 80S ribosomes?
70S ribosomes are found in prokaryotic organisms, while 80S ribosomes are found in eukaryotic cells
Which organelle is responsible for protein synthesis in all living cells?
Ribosomes
What is the composition of ribosomes?
60% ribosomal RNA (rRNA) and 40% protein
What is the difference between 70S and 80S ribosomes?
70S ribosomes are found in prokaryotic cells, while 80S ribosomes are found in eukaryotic cells
Which subunit of the ribosome binds to the tRNA molecule charged with an amino acid?
Aminoacyl-site (A site)
Where does ribosome biogenesis take place in eukaryotic cells?
Nucleolus
What is the function of the Peptidyl-site (P site) on the ribosome?
Holds the tRNA molecule linked to the growing end of the polypeptide chain
Where are free ribosomes mainly found?
Prokaryotes
Test your knowledge on ribosomes, the essential organelles involved in protein synthesis in all living cells. Learn about their structure, function, and their role in cellular processes.
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