Did you know that every cell in your body contains a tiny instruction manual called DNA? Because DNA is very important for the cell to perform all its functions, it is stored in a special place called the nucleus. The nucleus acts as the cell's control center.
This nucleus is wrapped in a double-layered nuclear envelope, which acts as a boundary protecting the DNA from the outer contents of the cell.
There are tiny openings scattered along the nuclear envelope called the nuclear pores. They act as gates that let important molecules enter and exit the nucleus.
Inside the nucleus, DNA is carefully organized into tightly packed structures called chromosomes, which come in different shapes and sizes.
There’s also a tiny structure inside the nucleus called the nucleolus, which builds ribosomes—machines that make proteins in the cytoplasm.
Human cells have 46 chromosomes, or 23 pairs, all tightly packed inside the nucleus. Isn’t it amazing how such small structures hold the instructions for everything you are?
Nucleus
The nucleus is one of the most important organelles in eukaryotic cells. It acts as the control center, storing genetic material (DNA) and dire…
Did you know that every cell in your body contains a tiny instruction manual called DNA? Because DNA is very important for the cell to perform all its functions, it is stored in a special place called the nucleus. The nucleus acts as the cell's control center.
This nucleus is wrapped in a double-layered nuclear envelope, which acts as a boundary protecting the DNA from the outer contents of the cell.
There are tiny openings scattered along the nuclear envelope called the nuclear pores. They act as gates that let important molecules enter and exit the nucleus.
Inside the nucleus, DNA is carefully organized into tightly packed structures called chromosomes, which come in different shapes and sizes.
There’s also a tiny structure inside the nucleus called the nucleolus, which builds ribosomes—machines that make proteins in the cytoplasm.
Human cells have 46 chromosomes, or 23 pairs, all tightly packed inside the nucleus. Isn’t it amazing how such small structures hold the instructions for everything you are?
Did you know that every cell in your body contains a tiny instruction manual called DNA? Because DNA is very important for the cell to perform all its functions, it is stored in a special place called the nucleus. The nucleus acts as the cell's control center.
This nucleus is wrapped in a double-layered nuclear envelope, which acts as a boundary protecting the DNA from the outer contents of the cell.
There are tiny openings scattered along the nuclear envelope called the nuclear pores. They act as gates that let important molecules enter and exit the nucleus.
Inside the nucleus, DNA is carefully organized into tightly packed structures called chromosomes, which come in different shapes and sizes.
There’s also a tiny structure inside the nucleus called the nucleolus, which builds ribosomes—machines that make proteins in the cytoplasm.
Human cells have 46 chromosomes, or 23 pairs, all tightly packed inside the nucleus. Isn’t it amazing how such small structures hold the instructions for everything you are?
View the full transcript and gain access to JoVE Core videos
From Chapter undefined: