Set 2 – Cell Organelles: Cytoplasm, Nucleus and Ribosomes

What is the cytoplasm?

A watery jelly in which cell organelles are suspended.

What is the function of the cytoplasm?

Site of metabolism and storage of substances.

What substances are stored in the cytoplasm?

Water and lipids and amino acids.

What surrounds the nucleus?

A double membrane.

What genetic material does the nucleus contain?

Chromatin.

What is the function of the nucleus?

Controls all cell activities and contains genetic material.

What is the nucleolus?

A structure inside the nucleus that makes ribosomal RNA.

What does the nucleolus produce?

Ribosomal RNA or rRNA.

What are nuclear pores?

Openings that allow materials to pass between the nucleus and cytoplasm.

Give an example of a substance passing through nuclear pores.

Messenger RNA or mRNA.

What are ribosomes made of?

Ribosomal RNA and proteins.

What is the function of ribosomes?

Protein synthesis.

What does protein synthesis mean?

The production of proteins.

Where are ribosomes found on the endoplasmic reticulum?

On the rough endoplasmic reticulum.

What is the difference between the nucleus and nucleolus?

The nucleus controls cell activities while the nucleolus makes rRNA.