cellular ultrastructure Flashcards
page 46
What are the two main types of cells?
Eukaryotic and prokaryotic cells.
What is the role of the nucleus?
It stores the cell’s DNA and coordinates activities such as growth and reproduction.
What is the function of the rough endoplasmic reticulum (rER)?
it is important in protein synthesis and storage.
What is the difference between 80S and 70S ribosomes?
80S ribosomes are found in eukaryotic cells, and 70S ribosomes are found in prokaryotic cells.
Which organelle is responsible for energy production in the cell?
Mitochondria.
Describe the function of lysosomes.
They digest waste products and debris in the cell.
What does the cytoskeleton do?
It maintains the cell’s shape, positions organelles, and aids in movement.
Where is genetic material found in a prokaryotic cell?
In the nucleoid region.
What is the function of centrioles?
They are involved in spindle formation during cell division.
Define a eukaryotic cell.
A cell with a membrane-bound nucleus and organelles.
