Prokaryotic and Eukaryotic Cells:
What do all cells have in common?
(DNA)
(DNA)
Cytosol
Plasma membrane
Cytosol
Ribosomes
Chromosomes
made of DNA
Cytosol
A prokaryotic cell
DNA
DNA, deoxyribonucleic acid
DNA is a Nucleic Acid
– Nucleic acids are information storage
molecules.
• They provide the directions for building
proteins.
Transcription
Translation
– Two strands of DNA
join together to form a
double helix.
– Nucleotide
monomers are
linked into long
chains.
• These chains are
called
polynucleotides, or
DNA strands.
• A sugar-phosphate
backbone joins them
together.
– Nucleic acids are polymers of nucleotides.
– Two strands of DNA
join together to form a
double helix.
– Base pairing:
• A-T
• G-C