Eukaryotes & Prokaryotes Flashcards
What is the function of a plasma cell(surface) membrane? + describe it.
Found on the surface of animal cells and inside the cell walls of plants. It is made of lipids and proteins.
It’s function is to regulate the movement of substances in and out of the cell. It also has receptor molecules which respond to hormone molecules.
What is the function of a cell wall ? + describe it.
Cell wall is made of b-glucose and it is rigid. The function of the cell wall is to provide support to plant cell.
What is the function of a nucleus? + describe it.
Has a nuclear envelope(double membrane) and a nucleolus, chromatin(DNA and proteins). Function is to control the cells activities- DNA has instructions for making proteins. Nucleolus makes ribosomes.
What is the function of a lysosome? + describe it.
No clear internal structure with a membrane surrounded it. Contains digestive enzymes to break down invading cells or worn out cells.
What is the function of a ribosome? + describe it.
Is circular and free in the cytoplasm or the RER. It is responsible for the synthesis of proteins.
