YOU ARE LEARNING:
Ribosomes are the cell's "protein factories".
Where you find ribosomes
You only find ribosomes in eukaryotic cells.
Ribosomes are ________________ in the cell's cytoplasm.
So ribosomes are organelles in the cell's cytoplasm
All types of cells have ribosomes.
All types of cells have ribosomes because they make something vey important that gets used for building for example enzymes, hormones, antibodies, muscle and other tissue. What do you think that is?
What a ribosome looks like
How many subunits does the ribosome consist of?
Ribosomes are made of proteins and something called rRNA. There are many types of RNA, but the r in rRNA stands for ____________.
rRNA is a kind of copy of DNA
DNA is extremely valuable to the organism! It should not be damaged, so it never actually leaves the cell nucleus.
So when the cell makes proteins in the ribosomes, it uses rRNA instead of real DNA.
More on that in later lessons.
All types of cells have ribosomes
Ribosomes make proteins for for example enzymes, hormones, antibodies, growth and repair.
Ribosomes consist of two subunits
A larger one and a smaller one.
Ribosomes are made of proteins and rRNA
rRNA stands for ribosomal RNA and is like a copy of DNA that the ribosome uses when it makes proteins.
More on how proteins are actually made in later lessons.