2.1.1 (k) Prokaryotic cells

Prokaryotic organisms (eg bacteria) are always made of single cells, whereas eukaryotic organisms (e.g. animals, plants, fungi and algae) can be uni-cellular (one cell) or multi-cellular.

• True

• False

Which of these statements is NOT correct?

• Prokaryotic do not contain organelles.

• Eukaryotic cells are larger and more complex than prokaryotic cells.

• The cell-surface membrane in eukaryotic and prokaryotic cells is made of a phospholipid bilayer.

• Cells arise from other cells by binary fission in prokaryotic cells and by mitosis or meiosis in eukaryotic cells.

Which of the following is absent from prokaryotic cells?

• plasmids

• cell wall

• rough endoplasmic reticulum

• ribosomes

What is the structure of DNA in a prokaryotic cell?

• Multiple linear chromosomes

• Multiple X-shaped chromosomes

• Single linear chromosome & plasmids

• Single circular chromosome & plasmids

What size ribosomes does a prokaryotic cell have?

What is a prokaryotic cell wall made of?