Structure Of Eukaryotic Cells Flashcards
Example of Eukaryotic organisms (3)
Animals
Plants
Fungi
In all eukaryotic cells where is the DNA contained
Membrane-bound nucleus
What is the DNA wrapped around
Proteins called histones
What do the DNA and the histone proteins form together
Chromosomes
Why is the DNA coiled
To pack a great deal of DNA into the nucleus
DNA is a linear molecule.
This means….
The ends of the DNA molecule in a chromosome are not joined together to form a loop
What features do plants cells have that animal don’t
-cell wall
-permanent vacuole
-chloroplasts
Which organelles is a eukaryotic cell are not membrane bond
Ribosomes
What do scientists say about eukaryotic cells and ribosomes
Eukaryotic cells contain 80S ribosomes
What is the function of a cell-surface membrain
Helps to control the molecules that can pass in and out of the cell
Function of the cell wall
Helps the cell to maintain its structure
In plants cells what is the cell wall made of
Polysaccharide cellulose
In fungi what is the cell wall made of
Polysaccharide chitin
What is the liquid inside the nucleus called
Nucleoplasm
What is the function of the nucleolus
produces rRNA and ribosomes
Structure of the nucleus
Double membrane aka nuclear envelope
With nuclear pores
Contains nucleolus
Function of the nucleus
Contains genetic material/ DNA
Structure of the cell membrane
Found surface of animal cell or within cell wall in plant cells
Usually made of lipids and proteins
Function of the cell membrane
To allow substances to pass in and out of the cell
Receptors which respond to chemicals like hormones
Structure Mitochondria
Contains double membrane the inner one is folded to form a structure called cristae
Contains enzymes inside