Cell structure Flashcards
(14 cards)
Eukaryotic cells?
Eukaryotic cells contain the genetic material (DNA) enclosed in a nucleus.
Prokaryotic cells?
In prokaryotic cells the genetic material (DNA) is not enclosed in a nucleus.
What are plasmids?
Small rings of DNA.
What are proteins and cells measured in?
Nanometres.
Function of a nucleus?
Enclose the genetic material.
Function of cytoplasm?
Where chemical reactions take place.
Function of cell membrane?
Controls the molecules that enter and leave the cell.
Function of ribosomes?
Sites of protein synthesis.
What green substance does chloroplasts contain?
Chlorophyll.
What is the cell wall made of?
Cellulose.
What is the vacuole filled with?
Cell sap.
Function of vacuole?
Gives the plant cell its shape.
What is an example of a prokaryotic cell?
Bacteria.
Function of cell wall?
- Protect the plant cell.
- Maintain the shape of the cell.
- Prevent excessive uptake of water.