Quiz on Cell Biology-I

Where can you find ribosomes? 

• only in prokaryotic cells
• only in plant cells
• only in eukaryotic cells
• in both prokaryotic and eukaryotic cells

Which type of ribosome creates the most proteins that are transported out of the cell? 

• bound
• free-floating

In a plant cell, in which two organelles can ribosomes be found?

• mitochondria and chloroplasts
• mitochondria and lysosomes
• chloroplasts and vacuoles 
• chloroplasts and lysosomes

A ribosome can be best described as...

• a protein factory
• a trash collector
• the powerhouse of the cell
• the brain of the cell

What are ribosomes made of?

• tissue
• organelles
• ribosomal RNA molecules and proteins
• DNA

Ribosomes are found in following cells

• animal

• plant

• prokaryotic

• bacteria

What is the function of the smaller unit of the ribosome? 

• read the transfer RNA (tRNA)
• support the larger unit of the ribosome
• read the messenger RNA (mRNA)
• take in nutrients for the ribosome

rRNAs present in Eukaryotic ribosomes

• 5S

• 5.8S

• 16S

• 28S

Prokaryotic Ribosomes are made up of

• 40S and 60S subunits

• 30S and 50S subunits

• 30S and 60S subunits

• 40s and 50S subunits

Number of Proteins in Prokaryotic ribosomes

• 21 in smaller subunit and 31 in larger subunit

• 33 in smaller subunit and 49 in larger subunit

• 21 in smaller subunit and 49 in larger subunit