Unit 5 Flashcards
What is the difference in the structure of DNA in prokaryotic and eukaryotic cells?
Prokaryotic DNA is circular (one big loop)
Eukaryotic DNA is linear (multiple rods)
Describe what a ribosome is
A macromolecules all around the cell, synthesize protein
What are the three characteristics of plasma membrane?
1-removes waste out of the cell
2-allows nutrients in
3-contains protein structures
What are three aspects that make eukaryotic cell more complex?
1-its compartmentalized: has organelles
2-has an internal endomembrane system: fast exchange of material and stores protein
3-has a cytoskeleton: helps in transport and organization of organelles
Name all parts of an animal cell (16)
Labo
Name all parts of a plant cell (19)
Labo
What is the role of the nucleus
-stores genetic material
-contains linear chromatin
-assembles ribosome subunits
-surrounded by nuclear envelope, which had nuclear pores
What is the role of SER
-lipid synthesis
-detoxification
What is the difference between SER and RER
SER does not have ribosomes attached to it
What does the endomembrane do?
-synthesizes, modifies and tags protein
-transports protein
What are the 5 steps in the endomembrane system?
1-RER assembles and modifies polypeptide
2-Transport vesicles move the protein to Golgi
3-Golgi packages and tags protein to molecules
4-lysosomes move finished protein out of cell for delivery
5-protein go through plasma membrane
What is the role of RER
-synthesis and assembly of proteins
What is the role of transport vesicles
Move protein from RER to Golgi
What is the role of the Golgi apparatus
Modify, package and distribute material to different parts of the cell
What is the role of secretory vescicles
Fuse into pm after budding off golgi, spilling their content into pm